Packages

Latest snapshot Package Synopsis
nightly-2026-01-18 abstract-deque-0.3 Abstract, parameterized interface to mutable Deques
nightly-2026-01-18 abstract-deque-tests-0.3 A test-suite for any queue or double-ended queue satisfying an interface
nightly-2026-01-18 abstract-par-0.3.3 Type classes generalizing the functionality of the 'monad-par' library
nightly-2026-01-18 AC-Angle-1.0 Angles in degrees and radians
nightly-2026-01-18 acc-0.2.0.4 Sequence optimized for monoidal construction and folding
lts-11.22 accelerate-1.1.1.0 An embedded language for accelerated array processing
lts-11.22 accelerate-arithmetic-1.0.0.1 Linear algebra and interpolation using the Accelerate framework
lts-11.22 accelerate-bignum-0.1.0.0 Fixed-length large integer arithmetic for Accelerate
lts-11.22 accelerate-blas-0.1.0.1 Numeric Linear Algebra in Accelerate
lts-10.10 accelerate-examples-1.1.0.0 Examples using the Accelerate library
lts-11.22 accelerate-fft-1.1.0.0 FFT using the Accelerate library
lts-11.22 accelerate-fftw-1.0.0.1 Accelerate frontend to the FFTW library (Fourier transform)
lts-11.22 accelerate-fourier-1.0.0.5 Fast Fourier transform and convolution using the Accelerate framework
lts-11.22 accelerate-io-1.0.0.1 Read and write Accelerate arrays in various formats
lts-11.22 accelerate-llvm-1.1.0.0 Accelerate backend component generating LLVM IR
lts-11.22 accelerate-llvm-native-1.1.0.1 Accelerate backend for multicore CPUs
lts-11.22 accelerate-llvm-ptx-1.1.0.1 Accelerate backend for NVIDIA GPUs
lts-11.22 accelerate-utility-1.0.0.1 Utility functions for the Accelerate framework
lts-18.28 accuerr-0.2.0.2 Data type like Either but with accumulating error type
nightly-2026-01-18 ace-0.6 Attempto Controlled English parser and printer
nightly-2026-01-18 acid-state-0.16.1.4 Add ACID guarantees to any serializable Haskell data structure
nightly-2026-01-18 action-permutations-0.0.0.1 Execute a set of actions (e.g. parsers) in each possible order
nightly-2026-01-18 active-0.2.1 Abstractions for animation
lts-5.16 AC-Vector-2.3.2 Efficient geometric vectors and transformations
nightly-2026-01-18 ad-4.5.6 Automatic Differentiation
nightly-2026-01-18 ad-delcont-0.5.0.0 Reverse-mode automatic differentiation with delimited continuations
nightly-2026-01-18 adjunctions-4.4.4 Adjunctions and representable functors
nightly-2026-01-18 adler32-0.1.2.0 An implementation of Adler-32, supporting rolling checksum operation
nightly-2026-01-18 advent-of-code-api-0.2.11.0 Advent of Code REST API bindings and servant API
nightly-2026-01-18 aern2-mp-0.2.16.1 Multi-precision ball (interval) arithmetic
nightly-2026-01-18 aern2-real-0.2.16.1 Real numbers as convergent sequences of intervals
nightly-2026-01-18 aeson-2.2.3.0 Fast JSON parsing and encoding
nightly-2026-01-18 aeson-attoparsec-0.0.0 Embed an Attoparsec text parser into an Aeson parser
nightly-2026-01-18 aeson-better-errors-0.9.1.3 Better error messages when decoding JSON values
nightly-2026-01-18 AesonBson-0.4.1 Mapping between Aeson's JSON and Bson objects
nightly-2026-01-18 aeson-casing-0.2.0.0 Tools to change the formatting of field names in Aeson instances
nightly-2026-01-18 aeson-combinators-0.1.2.2 Aeson combinators for dead simple JSON decoding
lts-20.26 aeson-commit-1.6.0 Parse Aeson data with commitment
lts-20.26 aeson-compat-0.3.10 Compatibility layer for aeson
lts-18.28 aeson-default-0.9.1.0 Apply default value to FromJSON instacnes' Maybe fields
nightly-2026-01-18 aeson-diff-1.1.0.13 Extract and apply patches to JSON documents
lts-23.28 aeson-extra-0.5.1.3 Extra goodies for aeson
nightly-2026-01-18 aeson-gadt-th-0.2.5.4 Derivation of Aeson instances for GADTs
nightly-2026-01-18 aeson-generic-compat-0.0.2.0 Compatible generic class names of Aeson
lts-11.22 aeson-injector-1.1.0.0 Injecting fields into aeson values
lts-22.44 aeson-iproute-0.3.0 Aeson instances for iproute types
nightly-2026-01-18 aeson-jsonpath-0.3.0.2 Parse and run JSONPath queries on Aeson documents
lts-18.28 aeson-lens-0.5.0.0 Lens of Aeson
lts-23.28 aeson-optics-1.2.1 Law-abiding optics for aeson
lts-22.44 aeson-picker-0.1.0.6 Tiny library to get fields from JSON format
nightly-2026-01-18 aeson-pretty-0.8.10 JSON pretty-printing library and command-line tool
nightly-2026-01-18 aeson-qq-0.8.4 JSON quasiquoter for Haskell
nightly-2015-12-17 aeson-schema-0.4.0.0 Haskell JSON schema validator and parser generator
nightly-2026-01-18 aeson-schemas-1.4.3.1 Easily consume JSON data on-demand with type-safety
nightly-2026-01-18 aeson-typescript-0.6.4.0 Generate TypeScript definition files from your ADTs
nightly-2026-01-18 aeson-unqualified-ast-1.0.0.3 Aliases to "aeson" AST making it importable unqualified
lts-16.31 aeson-utils-0.3.0.2 Utilities for working with Aeson
nightly-2026-01-18 aeson-value-parser-0.19.7.2 API for parsing "aeson" JSON tree into Haskell types
nightly-2026-01-18 aeson-warning-parser-0.1.1 Library providing JSON parser that warns about unexpected fields in objects
lts-18.28 aeson-with-0.1.2.0 withXField combinators for aeson
nightly-2026-01-18 aeson-yak-0.1.1.3 Handle JSON that may or may not be a list, or exist
nightly-2026-01-18 aeson-yaml-1.1.0.1 Output any Aeson value as YAML (pure Haskell library)
nightly-2026-01-18 aftovolio-0.8.0.0 An AFTOVolio implementation for creating texts with special phonetic / prosodic properties
nightly-2026-01-18 Agda-2.8.0 A dependently typed functional programming language and proof assistant
nightly-2026-01-18 agda2lagda-0.2025.9.5 Translate .agda files into .lagda.tex files
lts-6.35 agda-snippets-2.5.1 Render just the Agda snippets of a literate Agda file to HTML
lts-6.35 agda-snippets-hakyll-0.1.2.2 Literate Agda support using agda-snippets, for Hakyll pages
lts-6.35 agentx-0.2.0.0 AgentX protocol for write SNMP subagents
nightly-2026-01-18 agreeing-0.2.2.0 Idiomatic data structure for agreement
lts-20.26 airship-0.9.5 A Webmachine-inspired HTTP library
lts-21.25 al-0.1.4.2 OpenAL 1.1 raw API
nightly-2026-01-18 alarmclock-0.7.0.7 Wake up and perform an action at a certain time
lts-10.10 alerta-0.1.0.6 Bindings to the alerta REST API
lts-20.26 alerts-0.1.2.0 Alert messages for web applications
nightly-2026-01-18 alex-3.5.4.0 Alex is a tool for generating lexical analysers in Haskell
nightly-2026-01-18 alex-meta-0.3.0.13 Quasi-quoter for Alex lexers
nightly-2026-01-18 alex-tools-0.6.1 A set of functions for a common use case of Alex
nightly-2026-01-18 alfred-margaret-2.1.0.2 Fast Aho-Corasick string searching
lts-18.28 alg-0.2.13.1 Algebraic structures
nightly-2026-01-18 algebra-4.3.1 Constructive abstract algebra
nightly-2026-01-18 algebraic-graphs-0.7 A library for algebraic graph construction and transformation
nightly-2026-01-18 align-audio-0.0.0.1 Find relative time displacement of two recordings of the same music
nightly-2026-01-18 Allure-0.11.0.0 Near-future Sci-Fi roguelike and tactical squad combat game
nightly-2026-01-18 almost-fix-0.0.2 Recurse while a predicate is satisfied
nightly-2026-01-18 alsa-core-0.5.0.1 Binding to the ALSA Library API (Exceptions)
nightly-2026-01-18 alsa-mixer-0.3.0.1 Bindings to the ALSA simple mixer API
nightly-2026-01-18 alsa-pcm-0.6.1.2 Binding to the ALSA Library API (PCM audio)
nightly-2026-01-18 alsa-seq-0.6.0.10 Binding to the ALSA Library API (MIDI sequencer)
nightly-2026-01-18 alternative-vector-0.0.0 Use vectors instead of lists for many and some
nightly-2026-01-18 alternators-1.0.0.0 Handy functions when using transformers
nightly-2026-01-18 ALUT-2.4.0.3 A binding for the OpenAL Utility Toolkit
lts-22.44 amazonka-2.0 Comprehensive Amazon Web Services SDK
lts-22.44 amazonka-accessanalyzer-2.0 Amazon Access Analyzer SDK
lts-22.44 amazonka-account-2.0 Amazon Account SDK
lts-22.44 amazonka-amp-2.0 Amazon Prometheus Service SDK
lts-22.44 amazonka-amplify-2.0 Amazon Amplify SDK
lts-22.44 amazonka-amplifybackend-2.0 Amazon AmplifyBackend SDK
lts-22.44 amazonka-amplifyuibuilder-2.0 Amazon Amplify UI Builder SDK
lts-22.44 amazonka-apigateway-2.0 Amazon API Gateway SDK
lts-22.44 amazonka-apigatewaymanagementapi-2.0 Amazon ApiGatewayManagementApi SDK
lts-22.44 amazonka-apigatewayv2-2.0 Amazon ApiGatewayV2 SDK
lts-22.44 amazonka-appconfig-2.0 Amazon AppConfig SDK
lts-22.44 amazonka-appconfigdata-2.0 Amazon AppConfig Data SDK
lts-22.44 amazonka-appflow-2.0 Amazon Appflow SDK
lts-22.44 amazonka-appintegrations-2.0 Amazon AppIntegrations Service SDK
lts-22.44 amazonka-application-autoscaling-2.0 Amazon Application Auto Scaling SDK
lts-22.44 amazonka-applicationcostprofiler-2.0 Amazon Application Cost Profiler SDK
lts-22.44 amazonka-application-insights-2.0 Amazon CloudWatch Application Insights SDK
lts-22.44 amazonka-appmesh-2.0 Amazon App Mesh SDK
lts-22.44 amazonka-apprunner-2.0 Amazon App Runner SDK
lts-22.44 amazonka-appstream-2.0 Amazon AppStream SDK
lts-22.44 amazonka-arc-zonal-shift-2.0 Amazon ARC - Zonal Shift SDK
lts-22.44 amazonka-athena-2.0 Amazon Athena SDK
lts-22.44 amazonka-auditmanager-2.0 Amazon Audit Manager SDK
lts-22.44 amazonka-autoscaling-2.0 Amazon Auto Scaling SDK
lts-22.44 amazonka-backup-2.0 Amazon Backup SDK
lts-22.44 amazonka-backup-gateway-2.0 Amazon Backup Gateway SDK
lts-22.44 amazonka-backupstorage-2.0 Amazon Backup Storage SDK
lts-22.44 amazonka-billingconductor-2.0 Amazon BillingConductor SDK
lts-22.44 amazonka-braket-2.0 Amazon Braket SDK
lts-22.44 amazonka-budgets-2.0 Amazon Budgets SDK
lts-22.44 amazonka-certificatemanager-2.0 Amazon Certificate Manager SDK
lts-22.44 amazonka-chime-2.0 Amazon Chime SDK
lts-22.44 amazonka-chime-sdk-identity-2.0 Amazon Chime SDK Identity SDK
lts-22.44 amazonka-chime-sdk-media-pipelines-2.0 Amazon Chime SDK Media Pipelines SDK
lts-22.44 amazonka-chime-sdk-meetings-2.0 Amazon Chime SDK Meetings SDK
lts-22.44 amazonka-chime-sdk-messaging-2.0 Amazon Chime SDK Messaging SDK
lts-22.44 amazonka-chime-sdk-voice-2.0 Amazon Chime SDK Voice SDK
lts-22.44 amazonka-cloudcontrol-2.0 Amazon Cloud Control API SDK
lts-22.44 amazonka-cloudformation-2.0 Amazon CloudFormation SDK
lts-22.44 amazonka-cloudfront-2.0 Amazon CloudFront SDK
lts-22.44 amazonka-cloudhsm-2.0 Amazon CloudHSM SDK
lts-22.44 amazonka-cloudsearch-2.0 Amazon CloudSearch SDK
lts-22.44 amazonka-cloudsearch-domains-2.0 Amazon CloudSearch Domain SDK
lts-22.44 amazonka-cloudtrail-2.0 Amazon CloudTrail SDK
lts-22.44 amazonka-cloudwatch-2.0 Amazon CloudWatch SDK
lts-22.44 amazonka-cloudwatch-events-2.0 Amazon EventBridge SDK
lts-22.44 amazonka-cloudwatch-logs-2.0 Amazon CloudWatch Logs SDK
lts-22.44 amazonka-codeartifact-2.0 Amazon CodeArtifact SDK
lts-22.44 amazonka-codebuild-2.0 Amazon CodeBuild SDK
lts-22.44 amazonka-codecommit-2.0 Amazon CodeCommit SDK
lts-22.44 amazonka-codedeploy-2.0 Amazon CodeDeploy SDK
lts-22.44 amazonka-codeguruprofiler-2.0 Amazon CodeGuru Profiler SDK
lts-22.44 amazonka-codeguru-reviewer-2.0 Amazon CodeGuru Reviewer SDK
lts-22.44 amazonka-codepipeline-2.0 Amazon CodePipeline SDK
lts-22.44 amazonka-codestar-connections-2.0 Amazon CodeStar connections SDK
lts-22.44 amazonka-codestar-notifications-2.0 Amazon CodeStar Notifications SDK
lts-22.44 amazonka-cognito-identity-2.0 Amazon Cognito Identity SDK
lts-22.44 amazonka-cognito-idp-2.0 Amazon Cognito Identity Provider SDK
lts-22.44 amazonka-cognito-sync-2.0 Amazon Cognito Sync SDK
lts-22.44 amazonka-comprehendmedical-2.0 Amazon Comprehend Medical SDK
lts-22.44 amazonka-compute-optimizer-2.0 Amazon Compute Optimizer SDK
lts-22.44 amazonka-config-2.0 Amazon Config SDK
lts-22.44 amazonka-connectcampaigns-2.0 Amazon ConnectCampaignService SDK
lts-22.44 amazonka-connectcases-2.0 Amazon Connect Cases SDK
lts-22.44 amazonka-connect-contact-lens-2.0 Amazon Connect Contact Lens SDK
lts-22.44 amazonka-connectparticipant-2.0 Amazon Connect Participant Service SDK
lts-22.44 amazonka-controltower-2.0 Amazon Control Tower SDK
lts-22.44 amazonka-core-2.0 Core data types and functionality for Amazonka libraries
lts-22.44 amazonka-customer-profiles-2.0 Amazon Connect Customer Profiles SDK
lts-22.44 amazonka-databrew-2.0 Amazon Glue DataBrew SDK
lts-22.44 amazonka-dataexchange-2.0 Amazon Data Exchange SDK
lts-22.44 amazonka-datapipeline-2.0 Amazon Data Pipeline SDK
lts-22.44 amazonka-datasync-2.0 Amazon DataSync SDK
lts-22.44 amazonka-detective-2.0 Amazon Detective SDK
lts-22.44 amazonka-devicefarm-2.0 Amazon Device Farm SDK
lts-22.44 amazonka-devops-guru-2.0 Amazon DevOps Guru SDK
lts-22.44 amazonka-directconnect-2.0 Amazon Direct Connect SDK
lts-22.44 amazonka-discovery-2.0 Amazon Application Discovery Service SDK
lts-22.44 amazonka-dlm-2.0 Amazon Data Lifecycle Manager SDK
lts-22.44 amazonka-dms-2.0 Amazon Database Migration Service SDK
lts-22.44 amazonka-docdb-2.0 Amazon DocumentDB with MongoDB compatibility SDK
lts-22.44 amazonka-docdb-elastic-2.0 Amazon DocumentDB Elastic Clusters SDK
lts-22.44 amazonka-drs-2.0 Amazon Elastic Disaster Recovery Service SDK
lts-22.44 amazonka-ds-2.0 Amazon Directory Service SDK
lts-22.44 amazonka-dynamodb-2.0 Amazon DynamoDB SDK
lts-22.44 amazonka-dynamodb-streams-2.0 Amazon DynamoDB Streams SDK
lts-22.44 amazonka-ebs-2.0 Amazon Elastic Block Store SDK
lts-22.44 amazonka-ec2-2.0 Amazon Elastic Compute Cloud SDK
lts-22.44 amazonka-ec2-instance-connect-2.0 Amazon EC2 Instance Connect SDK
lts-22.44 amazonka-ecr-2.0 Amazon EC2 Container Registry SDK
lts-22.44 amazonka-ecr-public-2.0 Amazon Elastic Container Registry Public SDK
lts-22.44 amazonka-ecs-2.0 Amazon EC2 Container Service SDK
lts-22.44 amazonka-efs-2.0 Amazon Elastic File System SDK
lts-22.44 amazonka-eks-2.0 Amazon Elastic Kubernetes Service SDK
lts-22.44 amazonka-elasticache-2.0 Amazon ElastiCache SDK
lts-22.44 amazonka-elasticbeanstalk-2.0 Amazon Elastic Beanstalk SDK
lts-22.44 amazonka-elastic-inference-2.0 Amazon Elastic Inference SDK
lts-22.44 amazonka-elasticsearch-2.0 Amazon Elasticsearch Service SDK
lts-22.44 amazonka-elastictranscoder-2.0 Amazon Elastic Transcoder SDK
lts-22.44 amazonka-elb-2.0 Amazon Elastic Load Balancing SDK
lts-22.44 amazonka-elbv2-2.0 Amazon Elastic Load Balancing SDK
lts-22.44 amazonka-emr-2.0 Amazon EMR SDK
lts-22.44 amazonka-emr-containers-2.0 Amazon EMR Containers SDK
lts-22.44 amazonka-emr-serverless-2.0 Amazon EMR Serverless SDK
lts-22.44 amazonka-evidently-2.0 Amazon CloudWatch Evidently SDK
lts-22.44 amazonka-finspace-2.0 Amazon FinSpace User Environment Management service SDK
lts-22.44 amazonka-finspace-data-2.0 Amazon FinSpace Public API SDK
lts-22.44 amazonka-fis-2.0 Amazon Fault Injection Simulator SDK
lts-22.44 amazonka-forecast-2.0 Amazon Forecast Service SDK
lts-22.44 amazonka-forecastquery-2.0 Amazon Forecast Query Service SDK
lts-22.44 amazonka-frauddetector-2.0 Amazon Fraud Detector SDK
lts-22.44 amazonka-fsx-2.0 Amazon FSx SDK
lts-22.44 amazonka-gamelift-2.0 Amazon GameLift SDK
lts-22.44 amazonka-gamesparks-2.0 Amazon GameSparks SDK
lts-22.44 amazonka-glacier-2.0 Amazon Glacier SDK
lts-22.44 amazonka-globalaccelerator-2.0 Amazon Global Accelerator SDK
lts-22.44 amazonka-glue-2.0 Amazon Glue SDK
lts-22.44 amazonka-grafana-2.0 Amazon Managed Grafana SDK
lts-22.44 amazonka-greengrassv2-2.0 Amazon IoT Greengrass V2 SDK
lts-22.44 amazonka-groundstation-2.0 Amazon Ground Station SDK
lts-22.44 amazonka-health-2.0 Amazon Health APIs and Notifications SDK
lts-22.44 amazonka-healthlake-2.0 Amazon HealthLake SDK
lts-22.44 amazonka-honeycode-2.0 Amazon Honeycode SDK
lts-22.44 amazonka-iam-2.0 Amazon Identity and Access Management SDK
lts-22.44 amazonka-identitystore-2.0 Amazon SSO Identity Store SDK
lts-22.44 amazonka-imagebuilder-2.0 Amazon EC2 Image Builder SDK
lts-22.44 amazonka-importexport-2.0 Amazon Import/Export SDK
lts-22.44 amazonka-inspector-2.0 Amazon Inspector SDK
lts-22.44 amazonka-inspector2-2.0 Amazon Inspector2 SDK
lts-22.44 amazonka-iot-2.0 Amazon IoT SDK
lts-22.44 amazonka-iot1click-devices-2.0 Amazon IoT 1-Click Devices Service SDK
lts-22.44 amazonka-iot1click-projects-2.0 Amazon IoT 1-Click Projects Service SDK
lts-22.44 amazonka-iot-dataplane-2.0 Amazon IoT Data Plane SDK
lts-22.44 amazonka-iotdeviceadvisor-2.0 Amazon IoT Core Device Advisor SDK
lts-22.44 amazonka-iotevents-2.0 Amazon IoT Events SDK
lts-22.44 amazonka-iotevents-data-2.0 Amazon IoT Events Data SDK
lts-22.44 amazonka-iotfleethub-2.0 Amazon IoT Fleet Hub SDK
lts-22.44 amazonka-iotfleetwise-2.0 Amazon IoT FleetWise SDK
lts-22.44 amazonka-iot-roborunner-2.0 Amazon IoT RoboRunner SDK
lts-22.44 amazonka-iotsecuretunneling-2.0 Amazon IoT Secure Tunneling SDK
lts-22.44 amazonka-iotsitewise-2.0 Amazon IoT SiteWise SDK
lts-22.44 amazonka-iotthingsgraph-2.0 Amazon IoT Things Graph SDK
lts-22.44 amazonka-iottwinmaker-2.0 Amazon IoT TwinMaker SDK
lts-22.44 amazonka-iotwireless-2.0 Amazon IoT Wireless SDK
lts-22.44 amazonka-ivs-2.0 Amazon Interactive Video Service SDK
lts-22.44 amazonka-ivschat-2.0 Amazon Interactive Video Service Chat SDK
lts-22.44 amazonka-kafka-2.0 Amazon Managed Streaming for Kafka SDK
lts-22.44 amazonka-kafkaconnect-2.0 Amazon Managed Streaming for Kafka Connect SDK
lts-22.44 amazonka-kendra-2.0 Amazon KendraFrontendService SDK
lts-22.44 amazonka-keyspaces-2.0 Amazon Keyspaces SDK
lts-22.44 amazonka-kinesis-2.0 Amazon Kinesis SDK
lts-22.44 amazonka-kinesis-analytics-2.0 Amazon Kinesis Analytics SDK
lts-22.44 amazonka-kinesisanalyticsv2-2.0 Amazon Kinesis Analytics SDK
lts-22.44 amazonka-kinesis-firehose-2.0 Amazon Kinesis Firehose SDK
lts-22.44 amazonka-kinesis-video-signaling-2.0 Amazon Kinesis Video Signaling Channels SDK
lts-22.44 amazonka-kinesis-video-webrtc-storage-2.0 Amazon Kinesis Video WebRTC Storage SDK
lts-22.44 amazonka-kms-2.0 Amazon Key Management Service SDK
lts-22.44 amazonka-lakeformation-2.0 Amazon Lake Formation SDK
lts-22.44 amazonka-lambda-2.0 Amazon Lambda SDK
lts-22.44 amazonka-lexv2-models-2.0 Amazon Lex Model Building V2 SDK
lts-22.44 amazonka-license-manager-2.0 Amazon License Manager SDK
lts-22.44 amazonka-license-manager-linux-subscriptions-2.0 Amazon License Manager Linux Subscriptions SDK
lts-22.44 amazonka-license-manager-user-subscriptions-2.0 Amazon License Manager User Subscriptions SDK
lts-22.44 amazonka-lightsail-2.0 Amazon Lightsail SDK
lts-22.44 amazonka-location-2.0 Amazon Location Service SDK
lts-22.44 amazonka-lookoutequipment-2.0 Amazon Lookout for Equipment SDK
lts-22.44 amazonka-lookoutmetrics-2.0 Amazon Lookout for Metrics SDK
lts-22.44 amazonka-lookoutvision-2.0 Amazon Lookout for Vision SDK
lts-22.44 amazonka-m2-2.0 Amazon MainframeModernization SDK
lts-22.44 amazonka-macie-2.0 Amazon Macie SDK
lts-22.44 amazonka-maciev2-2.0 Amazon Macie 2 SDK
lts-22.44 amazonka-managedblockchain-2.0 Amazon Managed Blockchain SDK
lts-22.44 amazonka-marketplace-analytics-2.0 Amazon Marketplace Commerce Analytics SDK
lts-22.44 amazonka-marketplace-catalog-2.0 Amazon Marketplace Catalog Service SDK
lts-22.44 amazonka-marketplace-metering-2.0 Amazon Marketplace Metering SDK
lts-22.44 amazonka-mediaconnect-2.0 Amazon MediaConnect SDK
lts-22.44 amazonka-mediapackage-vod-2.0 Amazon Elemental MediaPackage VOD SDK
lts-22.44 amazonka-mediatailor-2.0 Amazon MediaTailor SDK
lts-22.44 amazonka-memorydb-2.0 Amazon MemoryDB SDK
lts-22.44 amazonka-mgn-2.0 Amazon Application Migration Service SDK
lts-22.44 amazonka-migrationhub-config-2.0 Amazon Migration Hub Config SDK
lts-22.44 amazonka-migrationhuborchestrator-2.0 Amazon Migration Hub Orchestrator SDK
lts-22.44 amazonka-migration-hub-refactor-spaces-2.0 Amazon Migration Hub Refactor Spaces SDK
lts-22.44 amazonka-migrationhubstrategy-2.0 Amazon Migration Hub Strategy Recommendations SDK
lts-22.44 amazonka-ml-2.0 Amazon Machine Learning SDK
lts-22.44 amazonka-mwaa-2.0 Amazon MWAA SDK
lts-22.44 amazonka-neptune-2.0 Amazon Neptune SDK
lts-22.44 amazonka-network-firewall-2.0 Amazon Network Firewall SDK
lts-22.44 amazonka-networkmanager-2.0 Amazon Network Manager SDK
lts-22.44 amazonka-nimble-2.0 Amazon NimbleStudio SDK
lts-22.44 amazonka-oam-2.0 Amazon CloudWatch Observability Access Manager SDK
lts-22.44 amazonka-omics-2.0 Amazon Omics SDK
lts-22.44 amazonka-opensearch-2.0 Amazon OpenSearch Service SDK
lts-22.44 amazonka-opensearchserverless-2.0 Amazon OpenSearch Service Serverless SDK
lts-22.44 amazonka-opsworks-2.0 Amazon OpsWorks SDK
lts-22.44 amazonka-opsworks-cm-2.0 Amazon OpsWorks CM SDK
lts-22.44 amazonka-outposts-2.0 Amazon Outposts SDK
lts-22.44 amazonka-panorama-2.0 Amazon Panorama SDK
lts-22.44 amazonka-personalize-2.0 Amazon Personalize SDK
lts-22.44 amazonka-personalize-events-2.0 Amazon Personalize Events SDK
lts-22.44 amazonka-personalize-runtime-2.0 Amazon Personalize Runtime SDK
lts-22.44 amazonka-pi-2.0 Amazon Performance Insights SDK
lts-22.44 amazonka-pinpoint-2.0 Amazon Pinpoint SDK
lts-22.44 amazonka-pinpoint-email-2.0 Amazon Pinpoint Email Service SDK
lts-22.44 amazonka-pinpoint-sms-voice-2.0 Amazon Pinpoint SMS and Voice Service SDK
lts-22.44 amazonka-pinpoint-sms-voice-v2-2.0 Amazon Pinpoint SMS Voice V2 SDK
lts-22.44 amazonka-pipes-2.0 Amazon EventBridge Pipes SDK
lts-22.44 amazonka-polly-2.0 Amazon Polly SDK
lts-22.44 amazonka-privatenetworks-2.0 Amazon Private 5G SDK
lts-22.44 amazonka-proton-2.0 Amazon Proton SDK
lts-22.44 amazonka-qldb-2.0 Amazon QLDB SDK
lts-22.44 amazonka-qldb-session-2.0 Amazon QLDB Session SDK
lts-22.44 amazonka-quicksight-2.0 Amazon QuickSight SDK
lts-22.44 amazonka-ram-2.0 Amazon Resource Access Manager SDK
lts-22.44 amazonka-rbin-2.0 Amazon Recycle Bin SDK
lts-22.44 amazonka-rds-2.0 Amazon Relational Database Service SDK
lts-22.44 amazonka-rds-data-2.0 Amazon RDS DataService SDK
lts-22.44 amazonka-redshift-2.0 Amazon Redshift SDK
lts-22.44 amazonka-redshift-data-2.0 Amazon Redshift Data API Service SDK
lts-22.44 amazonka-redshift-serverless-2.0 Amazon Redshift Serverless SDK
lts-22.44 amazonka-rekognition-2.0 Amazon Rekognition SDK
lts-22.44 amazonka-resiliencehub-2.0 Amazon Resilience Hub SDK
lts-22.44 amazonka-resource-explorer-v2-2.0 Amazon Resource Explorer SDK
lts-22.44 amazonka-robomaker-2.0 Amazon RoboMaker SDK
lts-22.44 amazonka-rolesanywhere-2.0 Amazon IAM Roles Anywhere SDK
lts-22.44 amazonka-route53-2.0 Amazon Route 53 SDK
lts-22.44 amazonka-route53-domains-2.0 Amazon Route 53 Domains SDK
lts-22.44 amazonka-route53-recovery-cluster-2.0 Amazon Route53 Recovery Cluster SDK
lts-22.44 amazonka-route53-recovery-control-config-2.0 Amazon Route53 Recovery Control Config SDK
lts-22.44 amazonka-route53-recovery-readiness-2.0 Amazon Route53 Recovery Readiness SDK
lts-22.44 amazonka-route53resolver-2.0 Amazon Route 53 Resolver SDK
lts-22.44 amazonka-rum-2.0 Amazon CloudWatch RUM SDK
lts-22.44 amazonka-s3-2.0 Amazon Simple Storage Service SDK
lts-22.44 amazonka-s3outposts-2.0 Amazon S3 on Outposts SDK
lts-9.21 amazonka-s3-streaming-0.2.0.3 Provides conduits to upload data to S3 using the Multipart API
lts-22.44 amazonka-sagemaker-a2i-runtime-2.0 Amazon Augmented AI Runtime SDK
lts-22.44 amazonka-sagemaker-edge-2.0 Amazon Sagemaker Edge Manager SDK
lts-22.44 amazonka-sagemaker-featurestore-runtime-2.0 Amazon SageMaker Feature Store Runtime SDK
lts-22.44 amazonka-sagemaker-geospatial-2.0 Amazon SageMaker geospatial capabilities SDK
lts-22.44 amazonka-sagemaker-metrics-2.0 Amazon SageMaker Metrics Service SDK
lts-22.44 amazonka-savingsplans-2.0 Amazon Savings Plans SDK
lts-22.44 amazonka-scheduler-2.0 Amazon EventBridge Scheduler SDK
lts-22.44 amazonka-schemas-2.0 Amazon Schemas SDK
lts-22.44 amazonka-sdb-2.0 Amazon SimpleDB SDK
lts-22.44 amazonka-secretsmanager-2.0 Amazon Secrets Manager SDK
lts-22.44 amazonka-securityhub-2.0 Amazon SecurityHub SDK
lts-22.44 amazonka-securitylake-2.0 Amazon Security Lake SDK
lts-22.44 amazonka-servicecatalog-2.0 Amazon Service Catalog SDK
lts-22.44 amazonka-servicecatalog-appregistry-2.0 Amazon Service Catalog App Registry SDK
lts-22.44 amazonka-service-quotas-2.0 Amazon Quotas SDK
lts-22.44 amazonka-ses-2.0 Amazon Simple Email Service SDK
lts-22.44 amazonka-sesv2-2.0 Amazon Simple Email Service SDK
lts-22.44 amazonka-shield-2.0 Amazon Shield SDK
lts-22.44 amazonka-signer-2.0 Amazon Signer SDK
lts-22.44 amazonka-simspaceweaver-2.0 Amazon SimSpace Weaver SDK
lts-22.44 amazonka-sms-2.0 Amazon Server Migration Service SDK
lts-22.44 amazonka-sms-voice-2.0 Amazon Pinpoint SMS and Voice Service SDK
lts-22.44 amazonka-snowball-2.0 Amazon Import/Export Snowball SDK
lts-22.44 amazonka-snow-device-management-2.0 Amazon Snow Device Management SDK
lts-22.44 amazonka-sns-2.0 Amazon Simple Notification Service SDK
lts-22.44 amazonka-sqs-2.0 Amazon Simple Queue Service SDK
lts-22.44 amazonka-ssm-2.0 Amazon Simple Systems Manager (SSM) SDK
lts-22.44 amazonka-ssm-contacts-2.0 Amazon Systems Manager Incident Manager Contacts SDK
lts-22.44 amazonka-ssm-incidents-2.0 Amazon Systems Manager Incident Manager SDK
lts-22.44 amazonka-ssm-sap-2.0 Amazon Systems Manager for SAP SDK
lts-22.44 amazonka-sso-2.0 Amazon Single Sign-On SDK
lts-22.44 amazonka-sso-admin-2.0 Amazon Single Sign-On Admin SDK
lts-22.44 amazonka-sso-oidc-2.0 Amazon SSO OIDC SDK
lts-22.44 amazonka-stepfunctions-2.0 Amazon Step Functions SDK
lts-22.44 amazonka-storagegateway-2.0 Amazon Storage Gateway SDK
lts-22.44 amazonka-sts-2.0 Amazon Security Token Service SDK
lts-22.44 amazonka-support-2.0 Amazon Support SDK
lts-22.44 amazonka-support-app-2.0 Amazon Support App SDK
lts-22.44 amazonka-swf-2.0 Amazon Simple Workflow Service SDK
lts-22.44 amazonka-synthetics-2.0 Amazon Synthetics SDK
lts-22.44 amazonka-test-2.0 Common functionality for Amazonka library test-suites
lts-22.44 amazonka-textract-2.0 Amazon Textract SDK
lts-22.44 amazonka-timestream-query-2.0 Amazon Timestream Query SDK
lts-22.44 amazonka-timestream-write-2.0 Amazon Timestream Write SDK
lts-22.44 amazonka-transfer-2.0 Amazon Transfer Family SDK
lts-22.44 amazonka-voice-id-2.0 Amazon Voice ID SDK
lts-22.44 amazonka-waf-2.0 Amazon WAF SDK
lts-22.44 amazonka-wafv2-2.0 Amazon WAFV2 SDK
lts-22.44 amazonka-wellarchitected-2.0 Amazon Well-Architected Tool SDK
lts-22.44 amazonka-wisdom-2.0 Amazon Connect Wisdom Service SDK
lts-22.44 amazonka-worklink-2.0 Amazon WorkLink SDK
lts-22.44 amazonka-workmailmessageflow-2.0 Amazon WorkMail Message Flow SDK
lts-22.44 amazonka-workspaces-2.0 Amazon WorkSpaces SDK
lts-22.44 amazonka-workspaces-web-2.0 Amazon WorkSpaces Web SDK
lts-22.44 amazonka-xray-2.0 Amazon X-Ray SDK
nightly-2026-01-18 amqp-0.24.0 Client library for AMQP servers (currently only RabbitMQ)
nightly-2026-01-18 amqp-utils-0.6.7.3 AMQP toolset for the command line
lts-6.35 angel-0.6.2 Process management and supervision daemon
nightly-2026-01-18 annotated-exception-0.3.0.4 Exceptions, with checkpoints and context
nightly-2026-01-18 annotated-wl-pprint-0.7.0 The Wadler/Leijen Pretty Printer, with annotation support
lts-9.21 anonymous-sums-0.6.0.0 Anonymous sum types
lts-24.28 ansigraph-0.3.0.5 Terminal-based graphing via ANSI and Unicode
nightly-2026-01-18 ansi-terminal-1.1.5 Simple ANSI terminal support
nightly-2026-01-18 ansi-terminal-game-1.9.3.0 cross-platform library for terminal games
nightly-2026-01-18 ansi-terminal-types-1.1.3 Types and functions used to represent SGR aspects
nightly-2026-01-18 ansi-wl-pprint-1.0.2 The Wadler/Leijen Pretty Printer for colored ANSI terminal output
nightly-2019-11-21 antiope-athena-7.4.5 Please see the README on Github at <https://github.com/arbor/antiope#readme>
lts-16.31 antiope-core-7.5.3 Please see the README on Github at <https://github.com/arbor/antiope#readme>
lts-16.31 antiope-dynamodb-7.5.3 Please see the README on Github at <https://github.com/arbor/antiope#readme>
lts-16.31 antiope-messages-7.5.3 Please see the README on Github at <https://github.com/arbor/antiope#readme>
lts-16.31 antiope-s3-7.5.3 Please see the README on Github at <https://github.com/arbor/antiope#readme>
lts-16.31 antiope-sns-7.5.3 Please see the README on Github at <https://github.com/arbor/antiope#readme>
lts-16.31 antiope-sqs-7.5.3 Please see the README on Github at <https://github.com/arbor/antiope#readme>
nightly-2026-01-18 ANum-0.2.0.4 Num instance for Applicatives provided via the ANum newtype
lts-24.28 aos-signature-0.1.1 An implementation of the AOS signatures
nightly-2026-01-18 apecs-0.9.6 Fast Entity-Component-System library for game programming
nightly-2026-01-18 apecs-gloss-0.2.4 Simple gloss renderer for apecs
nightly-2026-01-18 apecs-physics-0.4.6 2D physics for apecs
nightly-2018-11-30 apecs-physics-gloss-0.1.0.0 Gloss rendering for apecs-physics
lts-6.35 apiary-2.0.2 Simple and type safe web framework that generate web API documentation
lts-6.35 apiary-authenticate-1.4.0 authenticate support for apiary web framework
lts-6.35 apiary-clientsession-1.4.0 clientsession support for apiary web framework
lts-6.35 apiary-cookie-1.4.0 Cookie support for apiary web framework
lts-6.35 apiary-eventsource-1.4.0 eventsource support for apiary web framework
lts-6.35 apiary-logger-1.4.0 fast-logger support for apiary web framework
lts-6.35 apiary-memcached-1.4.0 memcached client for apiary web framework
lts-6.35 apiary-mongoDB-1.4.0 mongoDB support for apiary web framework
lts-6.35 apiary-persistent-1.4.0 persistent support for apiary web framework
lts-6.35 apiary-session-1.4.0 session support for apiary web framework
lts-6.35 apiary-websockets-1.4.0 websockets support for apiary web framework
nightly-2026-01-18 api-field-json-th-0.1.0.2 option of aeson's deriveJSON
lts-21.25 api-maker-0.1.0.6 Package to make APIs
nightly-2026-01-18 ap-normalize-0.1.0.1 Self-normalizing applicative expressions
nightly-2026-01-18 appar-0.1.8 A simple applicative parser
nightly-2026-01-18 appendful-0.1.0.0
nightly-2026-01-18 appendful-persistent-0.1.0.1
nightly-2026-01-18 appendmap-0.1.5 Map with a Semigroup and Monoid instances delegating to Semigroup of the elements
nightly-2017-05-05 applicative-numbers-0.1.3 Applicative-based numeric instances
lts-3.22 applicative-quoters-0.1.0.8 Quasiquoters for idiom brackets and an applicative do-notation
nightly-2026-01-18 apply-merge-0.1.1.0 Lift a binary, non-decreasing function onto ordered lists and order the output
nightly-2026-01-18 apply-refact-0.15.0.0 Perform refactorings specified by the refact library
nightly-2026-01-18 apportionment-0.0.0.4 Round a set of numbers while maintaining its sum
nightly-2026-01-18 approximate-0.3.5 Approximate discrete values and numbers
nightly-2026-01-18 approximate-equality-1.1.0.2 Newtype wrappers for approximate equality
lts-21.25 app-settings-0.2.0.12 A library to manage application settings (INI file-like)
lts-23.28 arbor-lru-cache-0.1.1.1 LRU cache based on STM
lts-17.15 arbor-postgres-0.0.5 Convenience types and functions for postgresql-simple
lts-20.26 arbtt-0.12.0.1 Automatic Rule-Based Time Tracker
lts-5.18 argon-0.4.0.0 Measure your code's complexity
nightly-2026-01-18 arithmoi-0.13.2.0 Efficient basic number-theoretic functions
nightly-2026-01-17 array-0.5.8.0 Mutable and immutable arrays
nightly-2026-01-18 array-chunks-0.1.4.2 Lists of chunks
nightly-2026-01-18 array-memoize-0.6.0 Memoization combinators using arrays for finite sub-domains of functions
nightly-2026-01-18 arrow-extras-0.1.0.1 Extra functions for Control.Arrow
lts-12.26 arrow-list-0.7 List arrows for Haskell
lts-10.10 arrowp-qq-0.2.1.1 A preprocessor and quasiquoter for translating arrow notation
nightly-2026-01-18 arrows-0.4.4.2 Arrow classes and transformers
lts-22.44 ascii-1.7.0.2 The ASCII character set and encoding
lts-22.44 ascii-case-1.0.1.4 ASCII letter case
lts-22.44 ascii-caseless-0.0.0.2 ASCII character without an upper/lower case distinction
nightly-2026-01-18 ascii-char-1.0.1.0 A Char type representing an ASCII character
lts-20.26 asciidiagram-1.3.3.3 Pretty rendering of Ascii diagram into svg or png
nightly-2026-01-18 asciidoc-0.1 AsciiDoc parser
lts-23.28 ascii-group-1.0.0.17 ASCII character groups
lts-22.44 ascii-numbers-1.2.0.2 ASCII representations of numbers
lts-22.44 ascii-predicates-1.0.1.4 Various categorizations of ASCII characters
nightly-2026-01-18 ascii-progress-0.3.3.0 A simple progress bar for the console
lts-22.44 ascii-superset-1.3.0.2 Representing ASCII with refined supersets
lts-22.44 ascii-th-1.2.0.2 Template Haskell support for ASCII
lts-18.10 asif-6.0.4 Library for creating and querying segmented feeds
lts-2.22 asn1-data-0.7.1 ASN1 data reader and writer in RAW, BER and DER forms
nightly-2026-01-18 asn1-encoding-0.9.6 ASN1 data reader and writer in RAW, BER and DER forms
nightly-2026-01-18 asn1-parse-0.9.5 Simple monadic parser for ASN1 stream types
nightly-2026-01-18 asn1-types-0.3.4 ASN.1 types
nightly-2026-01-18 assert-failure-0.1.3.0 Syntactic sugar improving 'assert' and 'error'
nightly-2026-01-18 assignment-0.0.1.0 A solution to the assignment problem
nightly-2026-01-18 assoc-1.1.1 swap and assoc: Symmetric and Semigroupy Bifunctors
nightly-2026-01-18 astro-0.4.3.0 Amateur astronomical computations
nightly-2026-01-18 async-2.2.6 Run IO operations asynchronously and wait for their results
lts-10.10 async-dejafu-0.1.3.0 Run MonadConc operations asynchronously and wait for their results
nightly-2026-01-18 async-extra-0.2.0.0 Useful concurrent combinators
nightly-2026-01-18 async-pool-0.9.2 A modified version of async that supports worker groups and many-to-many task dependencies
nightly-2026-01-18 async-refresh-0.3.0.0 Package implementing core logic for refreshing of expiring data
nightly-2026-01-18 async-refresh-tokens-0.4.0.0 Package implementing core logic for refreshing of expiring access tokens
lts-16.31 async-timer-0.2.0.0 Provides API for timer based execution of IO actions
lts-6.35 atndapi-0.1.1.0 An interface of ATND API
nightly-2026-01-18 atom-basic-0.2.5 Basic Atom feed construction
nightly-2026-01-18 atom-conduit-0.9.0.2 Streaming parser/renderer for the Atom 1.0 standard (RFC 4287)
nightly-2026-01-18 atomic-counter-0.1.2.4 Mutable counters that can be modified with atomic operatinos
nightly-2026-01-18 atomic-css-0.2.0 Type-safe, composable CSS utility functions. Inspired by Tailwindcss and Elm-UI
nightly-2026-01-18 atomic-primops-0.8.8 A safe approach to CAS and other atomic ops in Haskell
nightly-2026-01-18 atomic-write-0.2.1.1 Atomically write to a file
lts-2.22 atto-lisp-0.2.2 Efficient parsing and serialisation of S-Expressions
nightly-2026-01-18 attoparsec-0.14.4 Fast combinator parsing for bytestrings and text
nightly-2026-01-18 attoparsec-aeson-2.2.2.0 Parsing of aeson's Value with attoparsec
nightly-2026-01-18 attoparsec-base64-0.0.0 Fetch only base64 characters, erroring in the attoparsec monad on failure
nightly-2026-01-18 attoparsec-binary-0.2 Binary processing extensions to Attoparsec
lts-1.15 attoparsec-conduit-1.1.0 Consume attoparsec parsers via conduit. (deprecated)
nightly-2026-01-18 attoparsec-data-1.0.5.4 Parsers for the standard Haskell data types
lts-6.35 attoparsec-enumerator-0.3.4 Pass input from an enumerator to an Attoparsec parser
nightly-2026-01-18 attoparsec-expr-0.1.1.2 Port of parsec's expression parser to attoparsec
nightly-2026-01-18 attoparsec-framer-0.1.0.10 Use Attoparsec to parse framed protocol byte streams
lts-15.16 attoparsec-ip-0.0.5 Parse IP data types with attoparsec
nightly-2026-01-18 attoparsec-iso8601-1.1.1.0 Parsing of ISO 8601 dates, originally from aeson
nightly-2026-01-18 attoparsec-path-0.0.0.1 Convenience bindings between path and attoparsec
lts-22.44 attoparsec-run-0.0.2.0 Conveniently run Attoparsec parsers
nightly-2026-01-18 attoparsec-time-1.0.3.1 Attoparsec parsers of time
lts-6.35 attoparsec-trans-0.1.1.0 Interleaved effects for attoparsec parsers
nightly-2026-01-18 attoparsec-uri-0.0.9 URI parser / printer using attoparsec
nightly-2026-01-18 audacity-0.0.2.2 Interchange with the Audacity sound signal editor
lts-20.26 aur-7.0.7 Access metadata from the Arch Linux User Repository
lts-20.26 aura-3.2.9 A secure package manager for Arch Linux and the AUR
nightly-2026-01-18 authenticate-1.3.5.2 Authentication methods for Haskell web applications
nightly-2026-01-18 authenticate-oauth-1.7 Library to authenticate with OAuth for Haskell web applications
lts-17.15 auto-0.4.3.1 Denotative, locally stateful programming DSL & platform
nightly-2026-01-18 autodocodec-0.5.0.0 Self-documenting encoder and decoder
nightly-2026-01-18 autodocodec-nix-0.1.0.0 Autodocodec interpreters for nix
lts-24.28 autodocodec-openapi3-0.3.0.1 Autodocodec interpreters for openapi3
nightly-2026-01-18 autodocodec-schema-0.2.0.1 Autodocodec interpreters for JSON Schema
nightly-2026-01-18 autodocodec-servant-multipart-0.0.0.2 Autodocodec interpreters for Servant Multipart
lts-24.28 autodocodec-swagger2-0.1.0.0 Autodocodec interpreters for swagger2
nightly-2026-01-18 autodocodec-yaml-0.4.0.2 Autodocodec interpreters for yaml
nightly-2026-01-18 autoexporter-2.0.0.17 Automatically re-export modules
nightly-2026-01-18 automaton-1.6 Effectful streams and automata in coalgebraic encoding
nightly-2026-01-18 auto-update-0.2.6 Efficiently run periodic, on-demand actions
nightly-2021-06-10 avers-0.0.17.1 Server-side implementation of the Avers storage model
lts-14.26 avers-api-0.1.0 Types describing the core and extended Avers APIs
lts-9.21 avers-api-docs-0.0.18.0 Swagger documentation for the Avers API
lts-14.27 avers-server-0.1.0.1 Server implementation of the Avers API
nightly-2026-01-18 AvlTree-4.3 Balanced binary trees using the AVL algorithm
nightly-2026-01-18 avro-0.6.2.1 Avro serialization support for Haskell
lts-14.26 avwx-0.3.0.2 Parse aviation weather reports
nightly-2026-01-18 aws-0.25.2 Amazon Web Services (AWS) for Haskell
lts-22.44 aws-cloudfront-signed-cookies-0.2.0.13 Generate signed cookies for AWS CloudFront
nightly-2026-01-18 aws-lambda-haskell-runtime-4.3.2 Haskell runtime for AWS Lambda
nightly-2026-01-18 aws-lambda-haskell-runtime-wai-2.0.2 Run wai applications on AWS Lambda
nightly-2026-01-18 aws-sns-verify-0.0.0.3 Parse and verify AWS SNS messages
nightly-2026-01-18 aws-xray-client-0.1.0.2 A client for AWS X-Ray
nightly-2026-01-18 aws-xray-client-persistent-0.1.0.5 A client for AWS X-Ray integration with Persistent
nightly-2026-01-18 aws-xray-client-wai-0.1.0.2 A client for AWS X-Ray integration with WAI
lts-13.30 axel-0.0.9 The Axel programming language
lts-11.22 axiom-0.4.6 Web EDSL for running in browsers and server nodes using transient
lts-11.22 b9-0.5.49 A tool and library for building virtual machine images
nightly-2026-01-18 backprop-0.2.7.2 Heterogeneous automatic differentation
nightly-2026-01-18 backtracking-0.1.0 A backtracking monad
lts-10.10 bake-0.5 Continuous integration system
nightly-2026-01-18 bank-holiday-germany-2.1.0.2 German bank holidays and public holidays
nightly-2026-01-18 bank-holidays-england-0.2.0.11 Calculation of bank holidays in England and Wales
nightly-2026-01-18 barbies-2.1.1.0 Classes for working with types that can change clothes
lts-1.15 barecheck-0.2.0.8 QuickCheck implementations for common types
lts-22.44 barrier-0.1.1 Shields.io style badge generator
nightly-2026-01-17 base-4.21.1.0 Core data structures and operations
nightly-2026-01-18 base16-1.0 Fast RFC 4648-compliant Base16 encoding
nightly-2026-01-18 base16-bytestring-1.0.2.0 RFC 4648-compliant Base16 encodings for ByteStrings
lts-19.33 base16-lens-0.1.3.2 Optics for the Base16 library
nightly-2026-01-18 base32-0.4 Fast RFC 4648-compliant Base32 encoding
lts-19.33 base32-lens-0.1.1.1 Optics for the Base32 library
nightly-2026-01-18 base32string-0.9.1 Fast and safe representation of a Base-32 string
nightly-2026-01-18 base58-bytestring-0.1.0 Implementation of BASE58 transcoding for ByteStrings
nightly-2026-01-18 base58string-0.10.0 Fast and safe representation of a Base-58 string
nightly-2026-01-18 base64-1.0 A modern Base64 library
nightly-2026-01-18 base64-bytestring-1.2.1.0 Fast base64 encoding and decoding for ByteStrings
nightly-2026-01-18 base64-bytestring-type-1.0.1 A newtype around ByteString, for base64 encoding
lts-19.33 base64-lens-0.3.1 Optics for the Base64 library
nightly-2026-01-18 base64-string-0.2 Base64 implementation for String's
nightly-2026-01-18 base-compat-0.14.1 A compatibility layer for base
nightly-2026-01-18 base-compat-batteries-0.14.1 base-compat with extra batteries
nightly-2026-01-18 basement-0.0.16 Foundation scrap box of array & string
lts-16.31 base-noprelude-4.13.0.0 "base" package sans "Prelude" module
nightly-2026-01-18 base-orphans-0.9.4 Backwards-compatible orphan instances for base
nightly-2026-01-18 base-prelude-1.6.1.1 Featureful preludes formed solely from the "base" package
nightly-2026-01-18 base-unicode-symbols-0.2.4.2 Unicode alternatives for common functions and operators
nightly-2026-01-18 basic-prelude-0.7.0 An enhanced core prelude; a common foundation for alternate preludes
nightly-2026-01-18 battleship-combinatorics-0.0.1 Compute number of possible arrangements in the battleship game
nightly-2026-01-18 bazel-runfiles-0.12 Locate Bazel runfiles location
nightly-2026-01-18 bbdb-0.8 Ability to read, write, and modify BBDB files
nightly-2026-01-18 bcp47-0.3.0.0 Language tags as specified by BCP 47
lts-24.28 bcp47-orphans-0.1.3.0 BCP47 orphan instances
nightly-2026-01-18 bcrypt-0.0.11 Haskell bindings to the bcrypt password hash
nightly-2026-01-18 beam-core-0.10.4.0 Type-safe, feature-complete SQL query and manipulation interface for Haskell
nightly-2026-01-18 beam-migrate-0.5.3.2 SQL DDL support and migrations support library for Beam
lts-14.27 beam-mysql-0.2.0.0 Connection layer between beam and MySQL/MariaDB
nightly-2026-01-18 beam-postgres-0.5.4.4 Connection layer between beam and postgres
nightly-2026-01-18 beam-sqlite-0.5.5.0 Beam driver for SQLite
nightly-2026-01-18 bech32-1.1.9 Implementation of the Bech32 cryptocurrency address format (BIP 0173)
nightly-2026-01-18 bech32-th-1.1.9 Template Haskell extensions to the Bech32 library
lts-24.28 bench-1.0.13 Command-line benchmark tool
nightly-2026-01-18 benchpress-0.2.3.0 Micro-benchmarking with detailed statistics
lts-24.28 bench-show-0.3.2 Show, plot and compare benchmark results
nightly-2026-01-18 bencode-0.6.1.1 Parsers and printers for bencoded data
nightly-2026-01-18 bencoding-0.4.5.6 A library for encoding and decoding of BEncode data
nightly-2026-01-18 benri-hspec-0.1.0.3 Simplify tests where Either or Maybe types are returned from monadic code
lts-11.22 bento-0.1.0 🍱 Manage stateful components
nightly-2026-01-18 between-0.11.0.0 Function combinator "between" and derived combinators
nightly-2026-01-18 bhoogle-0.1.4.4 Simple terminal GUI for local hoogle
nightly-2026-01-18 bibtex-0.1.0.7 Parse, format and processing BibTeX files
nightly-2026-01-18 bifunctor-classes-compat-0.1.1 Compatibility package for the Bifunctor, Bifoldable, and Bitraversable classes
nightly-2026-01-18 bifunctors-5.6.3 Bifunctors
nightly-2026-01-18 bimap-0.5.0 Bidirectional mapping between two key types
nightly-2026-01-18 bimaps-0.1.0.2 bijections with multiple implementations
lts-21.25 bimap-server-0.1.0.1 Two-column database server
lts-24.28 bin-0.1.4 Bin: binary natural numbers
nightly-2026-01-18 binance-exports-0.1.2.0 Generate CSV Exports of your Binance Trade History
nightly-2026-01-17 binary-0.8.9.3 Binary serialisation for Haskell values using lazy ByteStrings
lts-14.27 binary-bits-0.5 Bit parsing/writing on top of binary
nightly-2026-01-18 binary-conduit-1.3.1 data serialization/deserialization conduit library
nightly-2026-01-18 binaryen-0.0.6.0 Haskell bindings to binaryen
lts-18.28 binary-ext-2.0.4 An alternate with strong-typed errors for `Data.Binary.Get` monad from `binary` package
nightly-2026-01-18 binary-generic-combinators-0.4.4.1 Combinators and utilities to make Generic-based deriving of Binary easier and more expressive
nightly-2026-01-18 binary-ieee754-0.1.0.0 Backport ieee754 float double combinators to older binary
nightly-2026-01-18 binary-instances-1.0.6 Orphan instances for binary
nightly-2026-01-18 binary-list-1.1.1.2 Lists of length a power of two
nightly-2026-01-18 binary-orphans-1.0.5 Compatibility package for binary; provides instances
nightly-2026-01-18 binary-parser-0.5.7.7 An efficient but limited parser API specialised to bytestrings
nightly-2026-01-18 binary-parsers-0.2.4.0 Extends binary with parsec/attoparsec style parsing combinators
nightly-2026-01-18 binary-search-2.0.0 Binary and exponential searches
nightly-2026-01-18 binary-shared-0.8.3 Sharing for the binary package
lts-23.28 binary-tagged-0.3.1 Tagged binary serialisation
lts-9.21 binary-typed-1.0 Type-safe binary serialization
nightly-2026-01-18 bindings-DSL-1.0.25 FFI domain specific language, on top of hsc2hs
nightly-2026-01-18 bindings-GLFW-3.3.9.3 Low-level bindings to GLFW OpenGL library
nightly-2026-01-18 bindings-libzip-1.0.1 Low level bindings to libzip
lts-6.35 bindings-posix-1.2.6 Low level bindings to posix
nightly-2026-01-18 bindings-uname-0.1 Low-level binding to POSIX uname(3)
lts-18.28 bins-0.1.2.0 Aggregate continuous values into discrete bins
lts-11.22 bioace-0.0.1 Library for reading ace assembly files
lts-11.22 bioalign-0.0.5 Data structures and helper functions for calculating alignments
nightly-2022-02-07 BiobaseBlast-0.3.3.0 BLAST-related tools
lts-19.33 BiobaseENA-0.0.0.2 European Nucleotide Archive data
lts-22.44 BiobaseEnsembl-0.2.0.1 Ensembl related datastructures and functions
lts-19.33 BiobaseFasta-0.4.0.1 streaming FASTA parser
nightly-2026-01-18 BiobaseNewick-0.0.0.2 Newick file format parser
lts-19.33 BiobaseTypes-0.2.1.0 Collection of types for bioinformatics
lts-19.33 BiobaseXNA-0.11.1.1 Efficient RNA/DNA/Protein Primary/Secondary Structure
lts-5.16 biocore-0.3.1 A bioinformatics library
lts-11.22 biofasta-0.0.3 Library for reading fasta sequence files
lts-11.22 biofastq-0.1 A library for reading FASTQ files
lts-2.22 biophd-0.0.7 Library for reading phd sequence files
lts-11.22 biopsl-0.4 Library and executables for working with PSL files
lts-2.22 biosff-0.3.7.1 Library and executables for working with SFF files
nightly-2026-01-18 bitarray-0.0.1.1 Mutable and immutable bit arrays
lts-12.26 bitcoin-api-0.12.1 Provides access to the RPC API of Bitcoin Core
lts-12.26 bitcoin-api-extra-0.9.1 Higher level constructs on top of the bitcoin-api package
lts-14.27 bitcoin-block-0.13.1 Utility functions for manipulating bitcoin blocks
lts-7.24 bitcoin-payment-channel-0.3.0.1 Library for working with Bitcoin payment channels
lts-14.26 bitcoin-script-0.11.1 Compilation, manipulation and decompilation of Bitcoin scripts
lts-14.27 bitcoin-tx-0.13.1 Utility functions for manipulating bitcoin transactions
lts-14.27 bitcoin-types-0.9.2 Provides consistent low-level types used commonly among Bitcoin implementations
nightly-2026-01-18 bits-0.6 Various bit twiddling and bitwise serialization primitives
nightly-2026-01-18 bitset-word8-0.1.1.2 Space efficient set of Word8 and some pre-canned sets useful for parsing HTTP
nightly-2026-01-18 bits-extra-0.0.2.3 Useful bitwise operations
lts-13.30 bit-stream-0.1.0.2 Lazy, infinite, compact stream of Bool with O(1) indexing
nightly-2026-01-18 bitvec-1.1.5.0 Space-efficient bit vectors
nightly-2026-01-18 bitwise-1.0.0.1 fast multi-dimensional unboxed bit packed Bool arrays
nightly-2026-01-18 bitwise-enum-1.0.1.2 Bitwise operations on bounded enumerations
lts-14.26 bitx-bitcoin-0.12.0.0 A Haskell library for working with the BitX bitcoin exchange
lts-22.44 blake2-0.3.0.1 A library providing BLAKE2
nightly-2026-01-18 Blammo-2.1.3.0 Batteries-included Structured Logging library
nightly-2026-01-18 blank-canvas-0.7.5 HTML5 Canvas Graphics Library
lts-22.44 blanks-0.5.0 Fill-in-the-blanks - A library factoring out substitution from ASTs
nightly-2026-01-18 blas-carray-0.1.0.2 Auto-generated interface to Fortran BLAS via CArrays
nightly-2026-01-18 blas-comfort-array-0.0.0.4 Auto-generated interface to Fortran BLAS via comfort-array
nightly-2026-01-18 blas-ffi-0.1 Auto-generated interface to Fortran BLAS
nightly-2026-01-18 blas-hs-0.1.1.0 Low-level Haskell bindings to Blas
lts-10.10 BlastHTTP-1.2.1 Libary to interface with the NCBI blast REST interface
lts-11.22 blastxml-0.3.2 Library for reading Blast XML output
nightly-2026-01-18 blaze-bootstrap-0.1.0.1 Blaze helper functions for bootstrap pages
nightly-2026-01-18 blaze-builder-0.4.4.1 Efficient buffered output
nightly-2015-01-20 blaze-builder-conduit-1.1.0 Convert streams of builders to streams of bytestrings. (deprecated)
lts-6.35 blaze-builder-enumerator-0.2.1.0 Enumeratees for the incremental conversion of builders to bytestrings
nightly-2026-01-18 blaze-colonnade-1.2.3.0 blaze-html backend for colonnade
nightly-2026-01-18 blaze-html-0.9.2.0 A blazingly fast HTML combinator library for Haskell
nightly-2026-01-18 blaze-markup-0.8.3.0 A blazingly fast markup combinator library for Haskell
nightly-2026-01-18 blaze-svg-0.3.7 SVG combinator library
nightly-2026-01-18 blaze-textual-0.2.3.1 Fast rendering of common datatypes
lts-9.21 BlogLiterately-0.8.4.3 A tool for posting Haskelly articles to blogs
lts-9.21 BlogLiterately-diagrams-0.2.0.5 Include images in blog posts with inline diagrams code
nightly-2026-01-18 bloodhound-0.26.0.0 Elasticsearch client library for Haskell
nightly-2026-01-18 bloomfilter-2.0.1.3 Pure and impure Bloom Filter implementations
lts-11.22 blosum-0.1.1.4 BLOSUM generator
nightly-2026-01-18 bluefin-0.2.6.0 The Bluefin effect system
nightly-2026-01-18 bluefin-internal-0.3.4.0 The Bluefin effect system, internals
lts-24.28 bm-0.2.0.0 open bookmarks and queries from the command line
nightly-2026-01-18 bmp-1.2.6.4 Read and write uncompressed BMP image files
nightly-2026-01-18 bnb-staking-csvs-0.2.2.0 Generate CSV Exports of Your BNB Staking Rewards
nightly-2026-01-18 BNFC-2.9.6.1 A compiler front-end generator
nightly-2026-01-18 BNFC-meta-0.6.1 Deriving Parsers and Quasi-Quoters from BNF Grammars
lts-13.30 bno055-haskell-0.1.0 Library for communication with the Bosch BNO055 orientation sensor
nightly-2026-01-18 board-games-0.4.0.1 Three games for inclusion in a web server
nightly-2026-01-18 bodhi-0.1.0 Fedora Bodhi REST client library
nightly-2026-01-18 boltzmann-samplers-0.1.1.0 Uniform random generators
lts-20.26 bookkeeping-0.4.0.1 A module for bookkeeping by double entry
nightly-2026-01-18 Boolean-0.2.4 Generalized booleans and numbers
lts-19.33 boolean-like-0.1.1.0 Logical combinatory operations dealing with datatypes representing booleans by their constructors
lts-16.31 boolean-normal-forms-0.0.1.1 Boolean normal form: NNF, DNF & CNF
lts-9.21 bool-extras-0.4.0 A fold function for Bool
nightly-2026-01-18 boolsimplifier-0.1.8 Simplification tools for simple propositional formulas
lts-23.28 boomerang-1.4.9.3 Library for invertible parsing and printing
nightly-2026-01-18 boomwhacker-0.0.2 Convert MIDI file to play-along boomwhacker animation
lts-21.25 boots-0.2.0.1 IoC Monad in Haskell
nightly-2026-01-18 bordacount-0.1.0.0 Implementation of the Borda count election method
nightly-2026-01-18 boring-0.2.2 Boring and Absurd types
lts-19.33 both-0.1.1.2 Like Maybe, but with a different Monoid instance
nightly-2026-01-18 bound-2.0.7 Making de Bruijn Succ Less
nightly-2026-01-18 BoundedChan-1.0.3.0 Implementation of bounded channels
lts-24.28 bounded-qsem-0.1.0.4 Bounded quantity semaphores
nightly-2026-01-18 bounded-queue-1.0.0 A strict, immutable, thread-safe, single-ended, bounded queue
nightly-2026-01-18 boundingboxes-0.2.3 A generic boundingbox for an arbitrary vector
nightly-2026-01-18 bower-json-1.1.0.0 Read bower.json from Haskell
nightly-2026-01-18 bowtie-0.7.0 Tying knots in polynomial functors
nightly-2026-01-18 box-0.9.4.0 A profunctor effect system?
nightly-2026-01-18 boxes-0.1.5 2D text pretty-printing library
nightly-2026-01-18 box-socket-0.5.3.0 Box websockets
lts-3.22 brainfuck-0.1.0.2 Brainfuck interpreter
nightly-2026-01-18 breakpoint-0.1.5.1 Set breakpoints using a GHC plugin
nightly-2026-01-18 brick-2.10 A declarative terminal user interface library
lts-19.33 brittany-0.14.0.2 Haskell source code formatter
lts-22.44 broadcast-chan-0.2.1.2 Closable, fair, single-wakeup channel type that avoids 0 reader space leaks
nightly-2026-01-18 brotli-0.0.0.3 Brotli (RFC7932) compression and decompression
nightly-2026-01-18 brotli-streams-0.0.0.0 IO-Streams interface for Brotli (RFC7932) compression
nightly-2026-01-18 bsb-http-chunked-0.0.0.4 Chunked HTTP transfer encoding for bytestring builders
nightly-2026-01-18 bson-0.4.0.1 BSON documents are JSON-like objects with a standard binary encoding
nightly-2026-01-18 bson-lens-0.1.1 BSON lenses
nightly-2026-01-18 btrfs-0.2.1.0 Bindings to the btrfs API
lts-11.22 buchhaltung-0.0.7 Automates most of your plain text accounting data entry in ledger format
lts-22.44 buffer-builder-0.2.4.9 Library for efficiently building up buffers, one piece at a time
nightly-2026-01-18 buffer-pipe-0.0 Read from stdin and write to stdout in large blocks
nightly-2026-01-18 bugsnag-1.2.0.1 Bugsnag error reporter for Haskell
lts-22.44 bugsnag-haskell-0.0.4.4 Bugsnag error reporter for Haskell
nightly-2026-01-18 bugsnag-hs-0.2.0.12 A Bugsnag client for Haskell
nightly-2026-01-18 bugsnag-wai-1.0.1.1 WAI integration for Bugsnag error reporting for Haskell
nightly-2026-01-18 bugsnag-yesod-1.0.1.0 Yesod integration for Bugsnag error reporting for Haskell
nightly-2026-01-18 bugzilla-redhat-1.0.1.1 A Haskell interface to the Bugzilla native REST API
lts-14.26 bulletproofs-0.4.0
lts-9.21 bumper-0.6.0.3 Automatically bump package versions, also transitively
nightly-2026-01-18 burrito-2.0.1.16 Parse and render URI templates
lts-6.35 bustle-0.5.4 Draw sequence diagrams of D-Bus traffic
nightly-2026-01-18 butcher-1.3.3.2 Chops a command or program invocation into digestable pieces
nightly-2022-01-06 butter-0.1.0.6 Monad Transformer for Asyncronous Message Passing
lts-19.33 buttplug-hs-core-0.1.0.1 Client library for buttplug.io
nightly-2026-01-18 bv-0.5 Bit-vector arithmetic library
lts-23.28 bv-little-1.3.2 Efficient little-endian bit vector library
nightly-2026-01-18 bv-sized-1.0.6 a bitvector datatype that is parameterized by the vector width
nightly-2026-01-18 byteable-0.1.1 Type class for sequence of bytes
nightly-2026-01-18 bytebuild-0.3.17.0 Build byte arrays
nightly-2026-01-18 byte-count-reader-0.10.1.12 Read strings describing a number of bytes like 2Kb and 0.5 MiB
nightly-2026-01-18 bytedump-1.0 Flexible byte dump helpers for human readers
nightly-2026-01-18 bytehash-0.1.1.2 Universal hashing of bytes
nightly-2026-01-18 byte-order-0.1.3.1 Portable big-endian and little-endian conversions
nightly-2026-01-18 byteorder-1.0.4 Exposes the native endianness or byte ordering of the system
nightly-2026-01-18 bytes-0.17.5 Sharing code for serialization between binary and cereal
nightly-2026-01-18 byteset-0.1.1.2 Set of bytes
nightly-2026-01-18 byteslice-0.2.15.0 Slicing managed and unmanaged memory
nightly-2026-01-18 bytesmith-0.3.14.0 Nonresumable byte parser
nightly-2026-01-17 bytestring-0.12.2.0 Fast, compact, strict and lazy byte strings with a list interface
nightly-2026-01-18 bytestring-aeson-orphans-0.1.0.2 Aeson instances for ByteString, using base 64 encoding
nightly-2026-01-18 bytestring-builder-0.10.8.2.0 The new bytestring builder, packaged outside of GHC
nightly-2026-01-18 bytestring-conversion-0.3.2 Type-classes to convert values to and from ByteString
nightly-2026-01-18 bytestring-encodings-0.2.0.2 checks to see if a given bytestring adheres to a certain encoding
lts-9.21 bytestring-handle-0.1.0.6 ByteString-backed Handles
nightly-2026-01-18 bytestring-lexing-0.5.0.15 Efficiently parse and produce common integral and fractional numbers
lts-21.25 bytestring-mmap-0.2.2 mmap support for strict ByteStrings
lts-20.26 bytestring-progress-1.4 A library for tracking the consumption of a lazy ByteString
lts-6.35 bytestring-read-0.3.1 fast ByteString to number converting library
lts-1.15 bytestring-show-0.3.5.6 Efficient conversion of values into readable byte strings
nightly-2026-01-18 bytestring-strict-builder-0.4.5.8 An efficient strict bytestring builder
nightly-2026-01-18 bytestring-to-vector-0.3.0.1 Convert between ByteString and Vector.Storable without copying
nightly-2026-01-18 bytestring-tree-builder-0.2.7.13 A very efficient ByteString builder implementation based on the binary tree
nightly-2026-01-18 bytestring-trie-0.2.7.6 An efficient finite map from bytestrings to values
lts-24.28 bytezap-1.6.0 Bytestring builder with zero intermediate allocation
nightly-2026-01-18 bz2-1.0.1.2 Bindings to libbz2
nightly-2026-01-18 bzip2-clib-1.0.8 bzip2 C sources
nightly-2026-01-18 bzlib-0.5.2.0 Compression and decompression in the bzip2 format
nightly-2026-01-18 bzlib-conduit-0.3.0.4 Streaming compression/decompression via conduits
nightly-2026-01-18 c14n-0.1.0.3 Bindings to the c14n implementation in libxml
nightly-2026-01-18 c2hs-0.28.8 C->Haskell FFI tool that gives some cross-language type safety
nightly-2026-01-17 Cabal-3.14.2.0 A framework for packaging Haskell software
nightly-2026-01-18 cabal2nix-2.21.0 Convert Cabal files into Nix build instructions
nightly-2026-01-18 cabal2spec-2.8.0 Convert Cabal files into rpm spec files
lts-24.28 cabal-add-0.2 Extend Cabal build-depends from the command line
nightly-2026-01-18 cabal-appimage-0.4.2.0 Cabal support for creating AppImage applications
nightly-2026-01-18 cabal-clean-0.2.20230609 Remove outdated cabal build artefacts from `dist-newstyle`
nightly-2026-01-18 cabal-debian-5.4.4 Create a Debianization for a Cabal package
lts-9.21 cabal-dependency-licenses-0.2.0.0 Compose a list of a project's transitive dependencies with their licenses
nightly-2026-01-18 cabal-doctest-1.0.12 A Setup.hs helper for running doctests
nightly-2026-01-18 cabal-file-0.1.1 Cabal file access
lts-20.26 cabal-file-th-0.2.7 Template Haskell expressions for reading fields from a project's cabal file
lts-23.28 cabal-fix-0.1.0.0 Fix for cabal files
nightly-2026-01-18 cabal-flatpak-0.1.2 Generate a FlatPak manifest from a Cabal package description
nightly-2026-01-18 cabal-gild-1.7.0.1 Formats package descriptions
lts-9.21 cabal-helper-0.7.3.0 Simple interface to some of Cabal's configuration state used by ghc-mod
lts-6.35 Cabal-ide-backend-1.23.0.0 A framework for packaging Haskell software
nightly-2026-01-18 cabal-install-3.14.2.0 The command-line interface for Cabal and Hackage
lts-24.28 cabal-install-parsers-0.6.2 Utilities to work with cabal-install files
nightly-2026-01-18 cabal-install-solver-3.14.2.0 The solver component of cabal-install
nightly-2026-01-18 cabal-plan-0.7.6.1 Library and utility for processing cabal's plan.json file
lts-24.28 cabal-rpm-2.3.0 RPM packaging tool for Haskell Cabal-based packages
nightly-2026-01-18 cabal-sort-0.1.2.2 Topologically sort cabal packages
lts-6.35 cabal-src-0.3.0.2 Alternative install procedure to avoid the diamond dependency issue
nightly-2026-01-17 Cabal-syntax-3.14.2.0 A library for working with .cabal files
lts-2.22 cabal-test-quickcheck-0.1.4 QuickCheck for Cabal
lts-11.22 cabal-toolkit-0.0.5 Helper functions for writing custom Setup.hs scripts
nightly-2026-01-18 cache-0.1.3.0 An in-memory key/value store with expiration support
nightly-2026-01-18 cached-json-file-0.1.1 Locally cache a json file obtained by http
lts-13.30 cachix-0.2.0 Command line client for Nix binary cache hosting https://cachix.org
nightly-2019-09-21 cachix-api-0.3.0 Servant HTTP API specification for https://cachix.org
nightly-2026-01-18 cacophony-0.11.0 A library implementing the Noise protocol
nightly-2026-01-18 cairo-0.13.12.0 Binding to the Cairo library
nightly-2026-01-18 cairo-image-0.1.0.6 Image for Cairo
lts-6.35 calculator-0.4.1.2 A calculator repl, with variables, functions & Mathematica like dynamic plots
nightly-2026-01-18 calendar-recycling-0.0.0.1 List years with the same calendars
nightly-2026-01-18 call-alloy-0.6.0.3 A simple library to call Alloy given a specification
lts-24.28 calligraphy-0.1.8 HIE-based Haskell call graph and source code visualizer
nightly-2026-01-18 call-plantuml-0.0.1.3 A simple library to call PlantUML given a diagram specification
nightly-2026-01-18 call-stack-0.4.0 Use GHC call-stacks in a backward compatible way
nightly-2017-07-20 camfort-0.902 CamFort - Cambridge Fortran infrastructure
nightly-2026-01-18 can-i-haz-0.3.1.1 Generic implementation of the Has and CoHas patterns
nightly-2026-01-18 capability-0.5.0.1 Extensional capabilities and deriving combinators
lts-19.33 capataz-0.2.1.0 OTP-like supervision trees in Haskell
nightly-2026-01-18 ca-province-codes-1.0.0.0 ISO 3166-2:CA Province Codes and Names
lts-18.28 captcha-2captcha-0.1.0.0 A package for integrating a variety of captcha solving services
lts-18.28 captcha-capmonster-0.1.0.0 A package for integrating a variety of captcha solving services
lts-18.28 captcha-core-0.1.0.1 A package for integrating a variety of captcha solving services
lts-24.28 cardano-coin-selection-1.0.1 Algorithms for coin selection and fee balancing
nightly-2026-01-18 carray-0.1.6.8 A C-compatible array library
lts-11.22 cartel-0.18.0.2 Specify Cabal files in Haskell
nightly-2015-12-14 Cartesian-0.2.0.0 Coordinate systems
nightly-2026-01-18 casa-client-0.0.3 Client for Casa
nightly-2026-01-18 casa-types-0.0.3 Types for Casa
nightly-2026-01-18 cased-0.1.0.0 Track string casing in its type
nightly-2026-01-18 case-insensitive-1.2.1.0 Case insensitive string comparison
nightly-2026-01-18 cases-0.1.4.4 A converter for spinal, snake and camel cases
nightly-2026-01-18 casing-0.1.4.1 Convert between various source code casing conventions
nightly-2026-01-18 cassava-0.5.4.1 A CSV parsing and encoding library
nightly-2026-01-18 cassava-conduit-0.6.6 Conduit interface for cassava package
nightly-2026-01-18 cassava-megaparsec-2.1.1 Megaparsec parser of CSV files that plays nicely with Cassava
lts-14.27 cassava-records-0.1.0.4 Auto-generation of records data type
lts-11.22 cassette-0.1.0 A combinator library for simultaneously defining parsers and pretty printers
nightly-2026-01-18 cast-0.1.0.2 Abstact cast pattern
lts-24.28 caster-0.0.3.0 Multicast, thread-safe, and fast logger
lts-18.28 category-0.2.5.0 Categorical types and classes
nightly-2026-01-18 cauldron-0.9.0.1 Dependency injection library
lts-5.16 cautious-file-1.0.2 Ways to write a file cautiously, to reduce the chances of problems such as data loss due to crashes or power failures
nightly-2026-01-18 cayley-client-0.4.19.5 A Haskell client for the Cayley graph database
nightly-2026-01-18 cborg-0.2.10.0 Concise Binary Object Representation (CBOR)
nightly-2026-01-18 cborg-json-0.2.6.0 A library for encoding JSON as CBOR
nightly-2026-01-18 cdar-mBound-0.1.0.4 Exact real arithmetic using Centred Dyadic Approximations
nightly-2026-01-18 c-enum-0.1.1.3 To make a type corresponding to an enum of C language
nightly-2026-01-18 cereal-0.5.8.3 A binary serialization library
nightly-2026-01-18 cereal-conduit-0.8.0 Turn Data.Serialize Gets and Puts into Sources, Sinks, and Conduits
nightly-2026-01-18 cereal-text-0.1.0.2 Data.Text instances for the cereal serialization library
lts-14.27 cereal-time-0.1.0.0 Serialize instances for types from `time` package
nightly-2026-01-18 cereal-unordered-containers-0.1.0.1 Integration of "cereal" and "unordered-containers"
nightly-2026-01-18 cereal-vector-0.2.0.1 Serialize instances for Data.Vector types
lts-2.22 certificate-1.3.9 Certificates and Key Reader/Writer
nightly-2026-01-18 cfenv-0.1.0.0 A library getting the environment when running on Cloud Foundry
nightly-2026-01-18 cgi-3001.5.1.0 A library for writing CGI programs
nightly-2026-01-18 chan-0.0.4.1 Some extra kit for Chans
nightly-2026-01-18 changeset-0.1.1 Stateful monad transformer based on monoidal actions
nightly-2026-01-18 ChannelT-0.0.0.7 Generalized stream processors
nightly-2026-01-18 character-cases-0.1.0.6 Exposes subspecies types of Char. And naming cases
nightly-2026-01-18 character-ps-0.1 Pattern synonyms for ASCII characters for Word8, Word16 etc
nightly-2026-01-18 charset-0.3.12 Fast unicode character sets based on complemented PATRICIA tries
nightly-2026-01-18 charsetdetect-ae-1.1.0.4 Character set detection using Mozilla's Universal Character Set Detector
nightly-2026-01-18 Chart-1.9.5 A library for generating 2D Charts and Plots
nightly-2026-01-18 Chart-cairo-1.9.4.1 Cairo backend for Charts
nightly-2026-01-18 Chart-diagrams-1.9.5.1 Diagrams backend for Charts
nightly-2026-01-18 chart-svg-0.8.3.2 Charting library targetting SVGs
lts-12.26 chart-unit-0.7.0.0 Native haskell charts
lts-18.28 chaselev-deque-0.5.0.5 Chase & Lev work-stealing lock-free double-ended queues (deques)
nightly-2026-01-18 ChasingBottoms-1.3.1.17 For testing partial and infinite values
lts-12.26 chatwork-0.1.3.5 The ChatWork API in Haskell
lts-20.26 cheapskate-0.1.1.2 Experimental markdown processor
lts-20.26 cheapskate-highlight-0.1.0.0 Code highlighting for cheapskate
lts-20.26 cheapskate-lucid-0.1.0.0 Use cheapskate with Lucid
nightly-2026-01-18 check-email-1.0.2 Confirm whether an email is valid and probably existant
nightly-2026-01-18 checkers-0.6.0 Check properties on standard classes and data structures
nightly-2026-01-18 checksum-0.0.0.1 Compute and verify checksums of ISBN, IBAN, etc
nightly-2026-01-18 chell-0.5.0.2 A simple and intuitive library for automated testing
nightly-2026-01-18 chell-hunit-0.3.0.2 HUnit support for Chell
lts-23.28 chell-quickcheck-0.2.5.4 QuickCheck support for Chell
nightly-2026-01-18 chimera-0.4.1.0 Lazy infinite streams with O(1) indexing and applications for memoization
lts-19.33 chiphunk-0.1.4.0 Haskell bindings for Chipmunk2D physics engine
nightly-2026-01-18 choice-0.2.4.1 A solution to boolean blindness
nightly-2026-01-18 chronologique-0.3.1.3 Time to manipulate time
nightly-2026-01-18 chronos-1.1.7.0 A high-performance time library
lts-22.44 chronos-bench-0.2.0.2 Benchmarking tool with focus on comparing results
nightly-2026-01-18 chunked-data-0.3.1 Typeclasses for dealing with various chunked data representations
nightly-2026-01-18 cipher-aes-0.2.11 Fast AES cipher implementation with advanced mode of operations
lts-19.33 cipher-aes128-0.7.0.6 AES and common modes using AES-NI when available
lts-14.27 cipher-blowfish-0.0.3 Blowfish cipher
nightly-2026-01-18 cipher-camellia-0.0.2 Camellia block cipher primitives
lts-19.33 cipher-des-0.0.6 DES and 3DES primitives
nightly-2026-01-18 cipher-rc4-0.1.4 Fast RC4 cipher implementation
nightly-2026-01-18 circle-packing-0.1.0.6 Simple heuristic for packing discs of varying radii in a circle
nightly-2026-01-18 circular-0.4.0.3 Circular fixed-sized mutable vectors
lts-14.27 cisco-spark-api-0.1.0.4 DEPRECATED in favor of webex-teams-api
nightly-2026-01-18 citeproc-0.12 Generates citations and bibliography from CSL styles
lts-12.26 clang-compilation-database-0.1.0.1 JSON Compilation Database Format encoding and decoding
lts-9.21 clang-pure-0.2.0.2 Pure C++ code analysis with libclang
lts-24.28 clash-ghc-1.8.4 Clash: a functional hardware description language - GHC frontend
lts-24.28 clash-lib-1.8.4 Clash: a functional hardware description language - As a library
lts-24.28 clash-prelude-1.8.4 Clash: a functional hardware description language - Prelude library
lts-24.28 clash-prelude-hedgehog-1.8.4 Hedgehog Generators for clash-prelude
nightly-2025-05-05 clash-shake-0.4.0 Shake rules for building Clash programs
lts-9.21 clash-systemverilog-0.7.2 CAES Language for Synchronous Hardware - SystemVerilog backend
lts-9.21 clash-verilog-0.7.2 CAES Language for Synchronous Hardware - Verilog backend
lts-9.21 clash-vhdl-0.7.2 CAES Language for Synchronous Hardware - VHDL backend
lts-14.26 classyplate-0.3.2.0 Fuseable type-class based generics
nightly-2026-01-18 classy-prelude-1.5.0.3 A typeclass-based Prelude
nightly-2026-01-18 classy-prelude-conduit-1.5.0 classy-prelude together with conduit functions
lts-24.28 classy-prelude-yesod-1.5.0 Provide a classy prelude including common Yesod functionality
nightly-2026-01-18 clay-0.16.1 CSS preprocessor as embedded Haskell
lts-8.24 clckwrks-0.24.0.4 A secure, reliable content management system (CMS) and blogging platform
lts-8.24 clckwrks-cli-0.2.17.1 a command-line interface for adminstrating some aspects of clckwrks
lts-8.24 clckwrks-plugin-media-0.6.16.4 media plugin for clckwrks
lts-8.24 clckwrks-plugin-page-0.4.3.10 support for CMS/Blogging in clckwrks
lts-8.24 clckwrks-theme-bootstrap-0.4.2.1 simple bootstrap based template for clckwrks
lts-22.44 cleff-0.3.3.0 Fast and concise extensible effects
lts-20.26 cleff-plugin-0.1.0.0 Automatic disambiguation for extensible effects
lts-11.22 cli-0.1.2 Command Line Interface
nightly-2026-01-18 cli-arguments-0.7.0.0 A library to process command line arguments in some more convenient way
nightly-2026-01-18 clientsession-0.9.3.0 Securely store session data in a client-side cookie
lts-20.26 climb-0.4.1 Building blocks for a GHCi-like REPL with colon-commands
nightly-2026-01-18 Clipboard-2.3.2.2 System clipboard interface
nightly-2026-01-18 clock-0.8.4 High-resolution clock functions: monotonic, realtime, cputime
nightly-2021-06-10 clock-extras-0.1.0.2 A couple functions that probably should be in the 'clock' package
nightly-2026-01-18 closed-0.2.1.0 Integers bounded by a closed interval
lts-15.16 clr-host-0.2.1.0 Hosting the Common Language Runtime
lts-10.10 clr-inline-0.2.0.1 Quasiquoters for inline C# and F#
lts-15.16 clr-marshal-0.2.0.0 Marshaling for the clr
nightly-2026-01-18 clumpiness-0.17.0.2 Calculate the clumpiness of leaf properties in a tree
nightly-2026-01-18 ClustalParser-1.3.0 Libary for parsing Clustal tools output
lts-9.21 clustering-0.3.1 High performance clustering algorithms
nightly-2026-01-18 cmark-0.6.1 Fast, accurate CommonMark (Markdown) parser and renderer
nightly-2026-01-18 cmark-gfm-0.2.6 Fast, accurate GitHub Flavored Markdown parser and renderer
lts-11.22 cmark-highlight-0.2.0.0 Code highlighting for cmark
nightly-2026-01-18 cmark-lucid-0.1.0.0 Use cmark with Lucid
nightly-2026-01-18 cmdargs-0.10.22 Command line argument processing
lts-12.26 code-builder-0.1.3 Simple system for generating code
lts-14.26 codec-0.2.1 Simple bidirectional serialization
nightly-2026-01-18 codec-beam-0.2.0 Erlang VM byte code assembler
nightly-2026-01-18 code-conjure-0.7.8 synthesize Haskell functions out of partial definitions
lts-17.15 codec-rpm-0.2.2 A library for manipulating RPM files
nightly-2026-01-18 code-page-0.2.1 Windows code page library for Haskell
lts-6.35 codex-0.4.0.10 A ctags file generator for cabal project dependencies
lts-14.27 codo-notation-0.5.2 A notation for comonads, analogous to the do-notation for monads
nightly-2026-01-18 coerce-with-substitution-0.0.0.0 Coercions with improved type inference
lts-19.33 coercible-utils-0.1.0 Utility functions for Coercible types
nightly-2026-01-18 coinor-clp-0.0.0.2 Linear Programming using COIN-OR/CLP and comfort-array
nightly-2026-01-18 cointracking-imports-0.1.0.2 Generate CSV & XLSX files for importing into CoinTracking
nightly-2026-01-18 collect-errors-0.1.6.0 Error monad with a Float instance
nightly-2026-01-18 co-log-0.7.0.0 Composable Contravariant Comonadic Logging Library
nightly-2026-01-18 co-log-concurrent-0.5.1.1 Asynchronous backend for co-log library
nightly-2026-01-18 co-log-core-0.3.2.6 Composable Contravariant Comonadic Logging Library
nightly-2026-01-18 co-log-polysemy-0.0.1.6 Composable Contravariant Comonadic Logging Library
nightly-2026-01-18 co-log-simple-1.2.1 Simple enhancements for logging with co-log
nightly-2026-01-18 colonnade-1.2.0.2 Generic types and functions for columnar encoding and decoding
nightly-2026-01-18 Color-0.4.1 Color spaces and conversions between them
nightly-2026-01-18 colorful-monoids-0.2.1.3 Styled console text output using ANSI escape sequences
nightly-2026-01-18 colorize-haskell-1.0.1 Highligt Haskell source
nightly-2026-01-18 colour-2.3.6 A model for human colour/color perception
lts-11.22 colour-accelerate-0.2.0.0 Working with colours in Accelerate
nightly-2026-01-18 colourista-0.1.0.2 Convenient interface for printing colourful messages
nightly-2026-01-18 columnar-1.0.0.0 A CSV toolkit based on cassava and enum-text
nightly-2026-01-18 combinatorial-0.1.1 Count, enumerate, rank and unrank combinatorial objects
nightly-2026-01-18 comfort-array-0.5.5 Arrays where the index type is a function of the shape type
nightly-2026-01-18 comfort-array-shape-0.0 Additional shape types for the comfort-array package
nightly-2026-01-18 comfort-blas-0.0.3.1 Numerical Basic Linear Algebra using BLAS
nightly-2026-01-18 comfort-fftw-0.0.0.1 High-level interface to FFTW (Fast Fourier Transform) based on comfort-array
nightly-2026-01-18 comfort-glpk-0.1 Linear Programming using GLPK and comfort-array
nightly-2026-01-18 comfort-graph-0.0.4.1 Graph structure with type parameters for nodes and edges
nightly-2026-01-18 commonmark-0.2.6.1 Pure Haskell commonmark parser
nightly-2026-01-18 commonmark-extensions-0.2.6 Pure Haskell commonmark parser
nightly-2026-01-18 commonmark-pandoc-0.2.3 Bridge between commonmark and pandoc AST
nightly-2026-01-18 commutative-0.0.2 Commutative binary operations
nightly-2026-01-18 commutative-semigroups-0.2.0.2 Commutative semigroups
nightly-2026-01-18 comonad-5.0.10 Comonads
lts-21.25 comonad-extras-4.0.1 Exotic comonad transformers
lts-10.10 comonads-fd-4.0 This package has been merged into comonad 4.0
lts-10.10 comonad-transformers-4.0 This package has been merged into comonad 4.0
nightly-2026-01-18 compact-0.2.0.0 Non-GC'd, contiguous storage for immutable data structures
nightly-2026-01-18 compactmap-0.1.4.6 A read-only memory-efficient key-value store
nightly-2026-01-18 companion-0.1.0 A Haskell library to provide companion threads
lts-23.28 compdata-0.13.1 Compositional Data Types
nightly-2026-01-18 compensated-0.8.3 Compensated floating-point arithmetic
nightly-2026-01-18 compiler-warnings-0.1.0 Parser for common compiler warning formats
nightly-2026-01-18 componentm-0.0.0.2 Monad for allocation and cleanup of application resources
nightly-2026-01-18 componentm-devel-0.0.0.2 Easy REPL driven development using ComponentM
nightly-2026-01-18 composable-associations-0.1.0.0 Types and helpers for composing types into a single larger key-value type
lts-18.28 composable-associations-aeson-0.1.0.1 Aeson ToJSON/FromJSON implementation for the types of composable-associations
lts-17.15 composite-aeson-0.7.5.0 JSON for Vinyl records
lts-17.15 composite-aeson-path-0.7.5.0 Formatting data for the path library
lts-17.15 composite-aeson-refined-0.7.5.0 composite-aeson support for Refined from the refined package
nightly-2021-06-01 composite-aeson-throw-0.1.0.0 MonadThrow behaviour for composite-aeson
lts-22.44 composite-base-0.8.2.1 Shared utilities for composite-* packages
lts-22.44 composite-binary-0.8.2.2 Orphan binary instances
lts-20.26 composite-ekg-0.8.2.1 EKG Metrics for Vinyl records
lts-22.44 composite-hashable-0.8.2.2 Orphan hashable instances
lts-22.44 composite-tuple-0.1.2.0 Tuple functions for composite records
lts-22.44 composite-xstep-0.1.0.0 ReaderT transformer pattern for higher kinded composite data
nightly-2026-01-18 composition-1.0.2.2 Combinators for unorthodox function composition
nightly-2026-01-18 composition-extra-2.1.0 Combinators for unorthodox structure composition
nightly-2026-01-18 composition-prelude-3.0.1.0 Higher-order function combinators
lts-6.35 composition-tree-0.2.0.3 Composition trees for arbitrary monoids
lts-12.26 compressed-3.11 Compressed containers and reducers
lts-6.35 concatenative-1.0.1 A library for postfix control flow
lts-6.35 conceit-0.4.0.0 Concurrent actions that may fail with a value
nightly-2026-01-18 concise-0.1.0.1 Utilities for Control.Lens.Cons
nightly-2026-01-18 concurrency-1.11.0.3 Typeclasses, functions, and data types for concurrency and STM
nightly-2026-01-18 concurrent-extra-0.7.0.12 Extra concurrency primitives
nightly-2026-01-18 concurrent-output-1.10.21 Ungarble output from several threads or commands
nightly-2026-01-18 concurrent-split-0.0.1.1 MVars and Channels with distinguished input and output side
nightly-2026-01-18 concurrent-supply-0.1.8 A fast concurrent unique identifier supply with a pure API
nightly-2026-01-18 cond-0.5.1 Basic conditional and boolean operators with monadic variants
nightly-2026-01-18 conduino-0.2.4.0 Lightweight composable continuation-based stream processors
nightly-2026-01-18 conduit-1.3.6.1 Streaming data processing library
nightly-2026-01-18 conduit-aeson-0.1.1.0 Short description
nightly-2026-01-18 conduit-algorithms-0.0.14.0 Conduit-based algorithms
nightly-2026-01-18 conduit-combinators-1.3.0 DEPRECATED Functionality merged into the conduit package itself
nightly-2026-01-18 conduit-concurrent-map-0.1.4 Concurrent, order-preserving mapping Conduit
lts-19.33 conduit-connection-0.1.0.5 Conduit source and sink for Network.Connection
nightly-2026-01-18 conduit-extra-1.3.8 Batteries included conduit: adapters for common libraries
lts-14.27 conduit-iconv-0.1.1.3 Conduit for character encoding conversion
nightly-2026-01-18 conduit-parse-0.2.1.1 Parsing framework based on conduit
lts-14.26 conduit-throttle-0.3.1.0 Throttle Conduit Producers
nightly-2026-01-18 conduit-zstd-0.0.2.0 Conduit-based ZStd Compression
nightly-2019-02-14 confcrypt-0.2.0.0
lts-23.28 conferer-1.1.0.0 Configuration management library
lts-23.28 conferer-aeson-1.1.0.2 conferer's source for reading json files
lts-18.28 conferer-hspec-1.1.0.0 conferer's FromConfig instances for hspec Config
nightly-2020-05-22 conferer-provider-json-0.3.0.0 conferer's provider for reading json files
lts-16.31 conferer-source-json-0.4.0.1 conferer's source for reading json files
lts-22.44 conferer-warp-1.1.0.1 conferer's FromConfig instances for warp settings
lts-21.25 ConfigFile-1.1.4 Configuration file reading & writing
nightly-2026-01-18 config-ini-0.2.7.0 A library for simple INI-based configuration files
nightly-2026-01-18 configuration-tools-0.7.1 Tools for specifying and parsing configurations
nightly-2026-01-18 configurator-0.3.0.0 Configuration management
nightly-2026-01-18 configurator-export-0.1.0.1 Pretty printer and exporter for configurations from the "configurator" library
nightly-2026-01-18 configurator-pg-0.2.11 Reduced parser for configurator-ng config files
nightly-2026-01-18 config-value-0.8.3 Simple, layout-based value language similar to YAML or JSON
lts-21.25 connection-0.3.1 Simple and easy network connections API
lts-20.26 connection-pool-0.2.2 Connection pool built on top of resource-pool and streaming-commons
lts-21.25 console-style-0.0.2.1 Styled console text output using ANSI escape sequences
nightly-2026-01-18 constrained-categories-0.4.2.0 Constrained clones of the category-theory type classes, using ConstraintKinds
lts-18.28 constraint-0.1.4.0 Reified constraints
nightly-2026-01-18 constraints-0.14.3 Constraint manipulation
nightly-2026-01-18 constraints-extras-0.4.0.2 Utility package for constraints
nightly-2026-01-18 constraint-tuples-0.2 Partially applicable constraint tuples
nightly-2026-01-18 construct-0.3.2 Haskell version of the Construct library for easy specification of file formats
lts-12.26 consul-haskell-0.4.2 A consul client for Haskell
nightly-2026-01-18 consumers-2.3.4.0 Concurrent PostgreSQL data consumers
nightly-2026-01-17 containers-0.7 Assorted concrete container types
lts-19.33 containers-unicode-symbols-0.3.1.3 Unicode alternatives for common functions and operators
nightly-2026-01-18 context-0.2.1.1 Thread-indexed, nested contexts
nightly-2026-01-18 context-http-client-0.2.0.2 Modify HTTP requests/responses using context
nightly-2026-01-18 context-resource-0.2.0.2 Thread-safe, pool-compatible resource provider
nightly-2026-01-18 context-wai-middleware-0.2.0.2 Add request-specific (or not!) context to your WAI applications
nightly-2026-01-18 contiguous-0.6.5.0 Unified interface for primitive arrays
lts-6.35 continued-fractions-0.9.1.1 Continued fractions
nightly-2026-01-18 contravariant-1.5.6 Contravariant functors
nightly-2026-01-18 contravariant-extras-0.3.5.4 Extras for the "contravariant" package
nightly-2026-01-18 control-bool-0.2.1 Useful combinators for boolean expressions
nightly-2026-01-18 control-dsl-0.2.1.3 An alternative to monads in do-notation
nightly-2026-01-18 control-monad-free-0.6.2 Free monads and monad transformers
lts-10.10 control-monad-loop-0.1 Simple monad transformer for imperative-style loops
nightly-2026-01-18 control-monad-omega-0.3.4 A breadth-first list monad
lts-6.35 converge-0.1.0.1 Limit operations for converging sequences
lts-8.24 conversion-1.2.1 Universal converter between values of different types
lts-8.24 conversion-bytestring-1.0.1 "Conversion" instances for the "bytestring" library
lts-8.24 conversion-case-insensitive-1.0.0.0 "Conversion" instances for the "case-insensitive" library
lts-8.24 conversion-text-1.0.1 "Conversion" instances for the "text" library
lts-8.24 convert-annotation-0.5.0.1 Convert the annotation of a gene to another in a delimited file using a variety of different databases
nightly-2026-01-18 convertible-1.1.1.1 Typeclasses and instances for converting between types
nightly-2026-01-18 cookie-0.5.1 HTTP cookie parsing and rendering
nightly-2026-01-18 copilot-4.6.1 A stream DSL for writing embedded C programs
nightly-2026-01-18 copilot-c99-4.6.1 A compiler for Copilot targeting C99
nightly-2026-01-18 copilot-core-4.6.1 An intermediate representation for Copilot
nightly-2026-01-18 copilot-interpreter-4.6.1 Interpreter for Copilot
nightly-2026-01-18 copilot-language-4.6.1 A Haskell-embedded DSL for monitoring hard real-time distributed systems
nightly-2026-01-18 copilot-libraries-4.6.1 Libraries for the Copilot language
nightly-2026-01-18 copilot-prettyprinter-4.6.1 A prettyprinter of Copilot Specifications
nightly-2026-01-18 copilot-theorem-4.6.1 k-induction for Copilot
nightly-2026-01-18 copr-api-0.2.0 Copr API client libary
nightly-2026-01-18 COrdering-2.3.1 An algebraic data type similar to Prelude Ordering
nightly-2026-01-18 core-data-0.3.9.1 Convenience wrappers around common data structures and encodings
nightly-2026-01-18 core-program-0.7.0.0 Opinionated Haskell Interoperability
nightly-2026-01-18 core-telemetry-0.2.9.4 Advanced telemetry
nightly-2026-01-18 core-text-0.3.8.1 A rope type based on a finger tree over UTF-8 fragments
nightly-2026-01-18 countable-1.2 Countable, Searchable, Finite, Empty classes
nightly-2026-01-18 countdown-numbers-game-0.0.0.1 Solve problems from the number round of the Countdown game show
nightly-2026-01-18 country-0.2.5.0 Country data type and functions
lts-6.35 country-codes-0.1.3 ISO 3166 country codes and i18n names
lts-14.26 courier-0.1.1.5 A message-passing library for simplifying network applications
nightly-2026-01-18 covariance-0.2.0.1 Well-conditioned estimation of large-dimensional covariance matrices
lts-17.15 cpio-conduit-0.7.0 Conduit-based CPIO
nightly-2026-01-18 cpphs-1.20.10 A liberalised re-implementation of cpp, the C pre-processor
lts-21.25 cprng-aes-0.6.1 Crypto Pseudo Random Number Generator using AES in counter mode
nightly-2026-01-18 cpu-0.1.2 Cpu information and properties helpers
nightly-2026-01-18 cpuinfo-0.1.0.3 Haskell Library for Checking CPU Information
nightly-2026-01-18 cql-4.1.0.0 Cassandra CQL binary protocol
lts-24.28 cql-io-1.1.1 Cassandra CQL client
nightly-2026-01-18 crackNum-3.15 Crack various integer and floating-point data formats
nightly-2026-01-18 crc32c-0.2.2 crc32c
nightly-2026-01-18 crdt-event-fold-1.8.1.2 Garbage collected event folding CRDT
lts-23.28 credential-store-0.1.2 Library to access secure credential storage providers
nightly-2026-01-18 criterion-1.6.4.1 Robust, reliable performance measurement and analysis
nightly-2026-01-18 criterion-measurement-0.2.3.0 Criterion measurement functionality and associated types
nightly-2026-01-18 cron-0.7.2 Cron datatypes and Attoparsec parser
nightly-2026-01-18 crypto-api-0.13.3 A generic interface for cryptographic operations
nightly-2026-01-18 crypto-api-tests-0.3 A test framework and KATs for cryptographic operations
lts-14.27 cryptocipher-0.6.2 Symmetrical block and stream ciphers
nightly-2026-01-18 crypto-cipher-tests-0.0.11 Generic cryptography cipher tests
nightly-2026-01-18 crypto-cipher-types-0.0.9 Generic cryptography cipher types
nightly-2026-01-18 cryptocompare-0.1.2 Haskell wrapper for the cryptocompare API
lts-21.25 crypto-enigma-0.1.1.6 An Enigma machine simulator with display.
lts-24.28 cryptohash-0.11.9 collection of crypto hashes, fast, pure and practical
lts-9.21 cryptohash-conduit-0.1.1 cryptohash conduit
lts-24.28 cryptohash-cryptoapi-0.1.4 Crypto-api interfaces for cryptohash
nightly-2026-01-18 cryptohash-md5-0.11.101.0 Fast, pure and practical MD5 implementation
nightly-2026-01-18 cryptohash-sha1-0.11.101.0 Fast, pure and practical SHA-1 implementation
nightly-2026-01-18 cryptohash-sha256-0.11.102.1 Fast, pure and practical SHA-256 implementation
nightly-2026-01-18 cryptohash-sha512-0.11.103.0 Fast, pure and practical SHA-512 implementation
nightly-2017-10-02 cryptol-2.5.0 Cryptol: The Language of Cryptography
nightly-2026-01-18 crypton-1.0.5 Cryptography Primitives sink
nightly-2026-01-18 crypton-asn1-encoding-0.10.0 ASN.1 data (raw, BER or DER) readers and writers
nightly-2026-01-18 crypton-asn1-parse-0.10.0 A monadic parser combinator for a ASN.1 stream
nightly-2026-01-18 crypton-asn1-types-0.4.1 ASN.1 types
nightly-2026-01-18 crypton-conduit-0.2.3 crypton conduit
nightly-2026-01-18 crypton-connection-0.4.5 Simple and easy network connection API
lts-24.28 cryptonite-0.30 Cryptography Primitives sink
lts-24.28 cryptonite-conduit-0.2.2 cryptonite conduit
lts-24.28 cryptonite-openssl-0.7 Crypto stuff using OpenSSL cryptographic library
nightly-2026-01-18 crypton-pem-0.3.0 Privacy Enhanced Mail (PEM) file format reader and writer
nightly-2026-01-18 crypton-socks-0.6.2 SOCKS Protocol Version 5
lts-18.28 crypto-numbers-0.2.7 Cryptographic numbers: functions and algorithms
nightly-2026-01-18 crypton-x509-1.7.7 X509 reader and writer
nightly-2026-01-18 crypton-x509-store-1.6.14 X.509 collection accessing and storing methods
nightly-2026-01-18 crypton-x509-system-1.6.8 Handle per-operating-system X.509 accessors and storage
nightly-2026-01-18 crypton-x509-validation-1.6.14 X.509 Certificate and CRL validation
lts-18.28 crypto-pubkey-0.2.8 Public Key cryptography
lts-14.26 crypto-pubkey-openssh-0.2.7 OpenSSH keys decoder/encoder
nightly-2026-01-18 crypto-pubkey-types-0.4.3 Generic cryptography Public keys algorithm types
lts-21.25 crypto-random-0.0.9 Simple cryptographic random related types
nightly-2026-01-18 crypto-random-api-0.2.0 Simple random generators API for cryptography related code
lts-22.44 cryptostore-0.3.1.0 Serialization of cryptographic data types
nightly-2026-01-18 crypto-token-0.1.2 crypto tokens
lts-23.28 crypt-sha512-0 Pure Haskell implelementation for GNU SHA512 crypt algorithm
nightly-2019-05-11 csg-0.1.0.6 Analytical CSG (Constructive Solid Geometry) library
nightly-2026-01-18 csp-1.4.0 Discrete constraint satisfaction problem (CSP) solver
nightly-2026-01-18 css-syntax-0.1.0.2 High-performance CSS tokenizer and serializer
nightly-2026-01-18 css-text-0.1.3.0 CSS parser and renderer
nightly-2026-01-18 c-struct-0.1.3.0 To make a wrapper for struct of C language
nightly-2026-01-18 csv-0.1.2 CSV loader and dumper
nightly-2026-01-18 csv-conduit-1.0.1.1 A flexible, fast, conduit-based CSV parser library for Haskell
nightly-2026-01-18 ctrie-0.2 Non-blocking concurrent map
nightly-2026-01-18 cubicbezier-0.6.0.7 Efficient manipulating of 2D cubic bezier curves
nightly-2026-01-18 cubicspline-0.1.2 Natural cubic spline interpolation
lts-19.7 cublas-0.6.0.0 FFI bindings to the CUDA BLAS library
lts-18.28 cuckoo-filter-0.2.0.2 Pure and impure Cuckoo Filter
lts-23.28 cuda-0.11.0.1 FFI binding to the CUDA interface for programming NVIDIA GPUs
nightly-2026-01-18 cuddle-1.1.2.0 CDDL Generator and test utilities
nightly-2026-01-18 cue-sheet-2.0.2 Support for construction, rendering, and parsing of CUE sheets
lts-19.7 cufft-0.10.0.0 Haskell bindings for the CUFFT library
nightly-2026-01-18 curl-1.3.8 Haskell binding to libcurl
lts-21.25 curl-runnings-0.17.0 A framework for declaratively writing curl based API tests
lts-23.28 curly-expander-0.3.0.4 Curly braces (brackets) expanding
lts-20.26 currencies-0.2.0.0 Currencies representation, pretty printing and conversion
nightly-2026-01-18 currency-0.2.0.0 Types representing standard and non-standard currencies
nightly-2026-01-18 currycarbon-0.5.0.0 A package for simple, fast radiocarbon calibration
nightly-2026-01-18 cursor-0.3.2.0 Purely Functional Cursors
nightly-2026-01-18 cursor-brick-0.1.0.1
nightly-2026-01-18 cursor-fuzzy-time-0.1.0.0
nightly-2026-01-18 cursor-gen-0.4.0.0 Generators for Purely Functional Cursors
lts-19.7 cusolver-0.3.0.0 FFI bindings to CUDA Solver, a LAPACK-like library
lts-19.7 cusparse-0.3.0.0 FFI bindings to the CUDA Sparse BLAS library
nightly-2026-01-18 cutter-0.0 Cut files according to a position list
nightly-2026-01-18 cyclotomic-1.1.2 A subfield of the complex numbers for exact calculation
nightly-2026-01-18 czipwith-1.0.1.4 CZipWith class and deriving via TH
lts-21.25 d10-1.0.1.3 Digits 0-9
lts-12.26 darcs-2.14.1 a distributed, interactive, smart revision control system
nightly-2026-01-18 data-accessor-0.2.3.1 Utilities for accessing and manipulating fields of records
nightly-2026-01-18 data-accessor-mtl-0.2.0.5 Use Accessor to access state in mtl State monad class
lts-18.28 data-accessor-template-0.2.1.16 Utilities for accessing and manipulating fields of records
nightly-2026-01-18 data-accessor-transformers-0.2.1.8 Use Accessor to access state in transformers State monad
nightly-2026-01-18 data-array-byte-0.1.0.2 Compatibility layer for Data.Array.Byte
lts-18.28 data-ascii-1.0.0.6 Type-safe, bytestring-based ASCII values
nightly-2026-01-18 data-binary-ieee754-0.4.4 Parser/Serialiser for IEEE-754 floating-point values
nightly-2026-01-18 data-bword-0.1.0.2 Extra operations on binary words of fixed length
lts-10.10 data-check-0.1.1 Library for checking and normalization of data (e.g. from web forms)
nightly-2026-01-18 data-checked-0.3 Type-indexed runtime-checked properties
nightly-2026-01-18 data-clist-0.2 Simple functional ring type
nightly-2026-01-18 data-compat-0.1.0.5 Define Backwards Compatibility Schemes for Arbitrary Data
nightly-2026-01-18 data-default-0.8.0.2 A class for types with a default value
nightly-2026-01-18 data-default-class-0.2.0.0 A class for types with a default value (compatibility shim)
lts-19.33 data-default-extra-0.1.0 A class for types with a default value
lts-23.28 data-default-instances-base-0.1.0.3 Default instances for types in base
lts-23.28 data-default-instances-bytestring-0.0.1 Default instances for (lazy and strict) ByteString, Builder and ShortByteString
lts-23.28 data-default-instances-case-insensitive-0.0.1 Default instance for CI type from case-insensitive package
lts-23.28 data-default-instances-containers-0.1.0.3 Default instances for types in containers
lts-23.28 data-default-instances-dlist-0.0.1.2 Default instances for types in dlist
lts-19.33 data-default-instances-new-base-0.0.2 Default instances for types in newer versions of base package
lts-23.28 data-default-instances-old-locale-0.0.1.2 Default instances for types in old-locale
lts-20.26 data-default-instances-text-0.0.1 Default instances for (lazy and strict) Text and Text Builder
lts-23.28 data-default-instances-unordered-containers-0.0.1 Default instances for unordered-containers
lts-23.28 data-default-instances-vector-0.0.1 Default instances for types defined in vector package
nightly-2026-01-18 data-diverse-4.7.1.0 Extensible records and polymorphic variants
lts-14.27 data-diverse-lens-4.3.0.0 Isos & Lens for Data.Diverse.Many and Prisms for Data.Diverse.Which
lts-22.44 datadog-0.3.0.0 Datadog client for Haskell. Supports both the HTTP API and StatsD
nightly-2026-01-18 data-dword-0.3.2.1 Stick two binary words together to get a bigger one
nightly-2026-01-18 data-effects-0.4.2.0 A basic framework for effect systems based on effects represented by GADTs
nightly-2026-01-18 data-effects-core-0.4.3.0 A basic framework for effect systems based on effects represented by GADTs
nightly-2026-01-18 data-effects-th-0.4.2.1 Template Haskell utilities for the data-effects library
nightly-2026-01-18 data-endian-0.1.1 Endian-sensitive data
nightly-2026-01-18 data-findcycle-0.1.2.0 Find cycles in periodic functions (and lists)
nightly-2026-01-18 data-fix-0.3.4 Fixpoint data types
lts-22.44 data-forest-0.1.0.13 A simple multi-way tree data structure
nightly-2026-01-18 dataframe-0.4.0.7 A fast, safe, and intuitive DataFrame library
nightly-2026-01-18 data-functor-logistic-0.0 Updatable analogue of Distributive functors
nightly-2026-01-18 data-has-0.4.0.0 Simple extensible product
nightly-2026-01-18 data-hash-0.2.0.1 Combinators for building fast hashing functions
nightly-2026-01-18 data-interval-2.1.2 Interval datatype, interval arithmetic and interval-based containers
nightly-2026-01-18 data-inttrie-0.1.4 A simple lazy, infinite trie from integers
nightly-2026-01-18 data-lens-light-0.1.2.4 Simple lenses, minimum dependencies
nightly-2026-01-18 data-memocombinators-0.5.1 Combinators for building memo tables
nightly-2026-01-18 data-msgpack-0.0.13 A Haskell implementation of MessagePack
nightly-2026-01-18 data-msgpack-types-0.0.3 A Haskell implementation of MessagePack
nightly-2026-01-18 data-or-1.0.0.7 A data type for non-exclusive disjunction
nightly-2026-01-18 data-ordlist-0.4.7.0 Set and bag operations on ordered lists
nightly-2026-01-18 data-prometheus-0.1.0.0 Prometheus metrics text format
nightly-2026-01-18 data-ref-0.1 Unify STRef and IORef in plain Haskell 98
nightly-2026-01-18 data-reify-0.6.4 Reify a recursive data structure into an explicit graph
nightly-2026-01-18 data-serializer-0.3.5 Common API for serialization libraries
lts-20.26 datasets-0.4.0 Classical data sets for statistics and machine learning
nightly-2026-01-18 data-sketches-0.3.1.0
nightly-2026-01-18 data-sketches-core-0.1.0.0
nightly-2026-01-18 data-textual-0.3.0.3 Human-friendly textual representations
lts-20.26 data-tree-print-0.1.0.2 Print Data instances as a nested tree
nightly-2026-01-18 dataurl-0.1.0.0 Handle data-urls
nightly-2026-01-18 DAV-1.3.4 RFC 4918 WebDAV support
lts-20.26 dawg-ord-0.5.1.2 Directed acyclic word graphs
nightly-2026-01-18 dbcleaner-0.1.3 Clean database tables automatically around hspec tests
lts-23.28 DBFunctor-0.1.2.1 DBFunctor - Functional Data Management => ETL/ELT Data Processing in Haskell
lts-6.35 dbmigrations-1.1.1 An implementation of relational database "migrations"
nightly-2026-01-18 dbus-1.4.1 A client library for the D-Bus IPC system
nightly-2026-01-18 dbus-hslogger-0.1.0.1 Expose a dbus server to control hslogger
nightly-2026-01-18 debian-4.0.5 Modules for working with the Debian package system
nightly-2026-01-18 debian-build-0.10.2.1 Debian package build sequence tools
lts-14.26 debug-0.1.1 Simple trace-based debugger
nightly-2026-01-18 debug-trace-var-0.2.0 You do not have to write variable names twice in Debug.Trace
nightly-2026-01-18 dec-0.0.6 Decidable propositions
nightly-2026-01-18 decidable-0.3.1.1 Combinators for manipulating dependently-typed predicates
nightly-2026-01-18 Decimal-0.5.2 Decimal numbers with variable precision
nightly-2026-01-18 declarative-0.5.4 DIY Markov Chains
nightly-2026-01-17 deepseq-1.5.1.0 Deep evaluation of data structures
nightly-2026-01-18 deepseq-generics-0.2.0.1 GHC.Generics-based Control.DeepSeq.rnf implementation
lts-18.28 deepseq-instances-0.1.0.1 Candidate NFData Instances for Types in base
nightly-2026-01-18 deferred-folds-0.9.18.10 Abstractions over deferred folds
nightly-2026-01-18 defun-core-0.1.0.1 Defunctionalization helpers: core definitions
nightly-2026-01-18 dejafu-2.4.0.8 A library for unit-testing concurrent programs
nightly-2026-01-18 delta-types-1.0.0.0 Delta types, also known as change actions
nightly-2026-01-18 dense-linear-algebra-0.1.0.0 Simple and incomplete pure haskell implementation of linear algebra
nightly-2026-01-18 dependent-enummap-0.1.0.0 A generalisation of EnumMap to dependent types
nightly-2026-01-18 dependent-map-0.4.0.1 Dependent finite maps (partial dependent products)
nightly-2026-01-18 dependent-monoidal-map-0.1.1.5 Dependent map that uses semigroup mappend
nightly-2026-01-18 dependent-sum-0.7.2.0 Dependent sum type
nightly-2026-01-18 dependent-sum-aeson-orphans-0.3.1.2 JSON instances for DSum, DMap, and Some
nightly-2026-01-18 dependent-sum-template-0.2.0.2 Template Haskell code to generate instances of classes in some package
nightly-2026-01-18 depq-0.4.2 Double-ended priority queues
nightly-2026-01-18 deque-0.4.4.2 Double-ended queues
lts-10.10 derive-2.6.3 A program and library to derive instances for data types
nightly-2026-01-18 deriveJsonNoPrefix-0.1.0.1 Derive ToJSON/FromJSON instances in a more prefix-friendly manner
nightly-2026-01-18 derive-storable-0.3.1.0 Derive Storable instances with GHC.Generics
nightly-2026-01-18 derive-topdown-0.1.1.0 Derive type class instances
nightly-2026-01-18 deriving-aeson-0.2.10 Type driven generic aeson instance customisation
nightly-2026-01-18 deriving-compat-0.6.8 Backports of GHC deriving extensions
lts-24.28 deriving-trans-0.9.1.0 Derive instances for monad transformer stacks
lts-19.33 derulo-2.0.0.3 Parse and render JSON simply
nightly-2022-02-07 descriptive-0.9.5 Self-describing consumers/parsers; forms, cmd-line args, JSON, etc
nightly-2026-01-18 detour-via-sci-1.0.0 JSON and CSV encoding for rationals as decimal point numbers
nightly-2026-01-18 df1-0.4.3 Type, render and parse the df1 hierarchical structured log format
nightly-2026-01-18 dhall-1.42.3 A configuration language guaranteed to terminate
lts-22.44 dhall-bash-1.0.41 Compile Dhall to Bash
lts-21.25 dhall-json-1.7.11 Convert between Dhall and JSON or YAML
lts-18.28 dhall-lsp-server-1.0.18 Language Server Protocol (LSP) server for Dhall
nightly-2020-08-08 dhall-nix-1.1.15 Dhall to Nix compiler
nightly-2019-07-31 dhall-text-1.0.18 Template text using Dhall
nightly-2018-09-28 dhall-to-cabal-1.3.0.1 Compile Dhall expressions to Cabal files
lts-21.25 dhall-yaml-1.2.12 Convert between Dhall and YAML
nightly-2026-01-18 di-1.3 Typeful hierarchical structured logging using di, mtl and df1
nightly-2026-01-18 diagrams-1.4.2 Embedded domain-specific language for declarative vector graphics
nightly-2026-01-18 diagrams-braille-0.1.2 Braille diagrams with plain text
nightly-2026-01-18 diagrams-builder-0.8.0.6 hint-based build service for the diagrams graphics EDSL
lts-24.28 diagrams-cairo-1.5 Cairo backend for diagrams drawing EDSL
nightly-2026-01-18 diagrams-canvas-1.4.2 HTML5 canvas backend for diagrams drawing EDSL
nightly-2026-01-18 diagrams-contrib-1.4.6 Collection of user contributions to diagrams EDSL
nightly-2026-01-18 diagrams-core-1.5.1.1 Core libraries for diagrams EDSL
lts-24.28 diagrams-gtk-1.4 Backend for rendering diagrams directly to GTK windows
nightly-2017-01-17 diagrams-haddock-0.4.0.1 Preprocessor for embedding diagrams in Haddock documentation
lts-22.44 diagrams-html5-1.4.2 HTML5 canvas backend for diagrams drawing EDSL
nightly-2026-01-18 diagrams-lib-1.5.1 Embedded domain-specific language for declarative graphics
nightly-2026-01-18 diagrams-postscript-1.5.3 Postscript backend for diagrams drawing EDSL
nightly-2026-01-18 diagrams-rasterific-1.5 Rasterific backend for diagrams
nightly-2026-01-18 diagrams-solve-0.1.3.1 Pure Haskell solver routines used by diagrams
nightly-2026-01-18 diagrams-svg-1.5 SVG backend for diagrams drawing EDSL
lts-18.28 dialogflow-fulfillment-0.1.1.4 A Dialogflow Fulfillment library for Haskell
lts-24.28 dice-0.1.1 Simplistic D&D style dice-rolling system
nightly-2026-01-18 di-core-1.0.4 Typeful hierarchical structured logging without monad towers
lts-11.22 dictionaries-0.2.0.4 Tools to handle StarDict dictionaries
nightly-2026-01-18 dictionary-sharing-0.1.0.0 Sharing/memoization of class members
nightly-2026-01-18 di-df1-1.2.1 Write logs in the df1 format using the di logging framework
nightly-2026-01-18 Diff-1.0.2 Diff algorithm in pure Haskell
lts-11.22 diff3-0.3.1 Perform a 3-way difference of documents
nightly-2026-01-18 diff-loc-0.1.0.0 Map file locations across diffs
nightly-2026-01-18 digest-0.0.2.1 CRC32 and Adler32 hashes for bytestrings
lts-6.35 digestive-bootstrap-0.1.0.1 Speed up form designing using digestive functors and bootstrap
lts-6.35 digestive-functors-0.8.0.1 A practical formlet library
lts-6.35 digestive-functors-aeson-1.1.21 Run digestive-functors forms against JSON
lts-6.35 digestive-functors-blaze-0.6.1.0 Blaze frontend for the digestive-functors library
lts-6.35 digestive-functors-lucid-0.0.0.4 Lucid frontend for the digestive-functors library
nightly-2026-01-18 digits-0.3.2 Converts integers to lists of digits and back
nightly-2026-01-18 digraph-0.3.2 Directed Graphs
nightly-2026-01-18 di-handle-1.0.1 IO support for file handles in di-core
nightly-2026-01-18 dimensional-1.6.2 Statically checked physical dimensions
nightly-2026-01-18 di-monad-1.3.5 mtl flavoured typeful hierarchical structured logging for di-core
nightly-2026-01-17 directory-1.3.9.0 Platform-agnostic library for filesystem operations
nightly-2026-01-18 directory-ospath-streaming-0.3 Stream directory entries in constant memory in vanilla IO
nightly-2026-01-18 directory-tree-0.12.1 A simple directory-like tree datatype, with useful IO functions
lts-11.22 direct-rocksdb-0.0.3 Bindings to RocksDB
nightly-2026-01-18 direct-sqlite-2.3.29 Low-level binding to SQLite3. Includes UTF8 and BLOB support
nightly-2026-01-18 dirichlet-0.1.0.7 Multivariate Dirichlet distribution
lts-9.21 discord-gateway-0.2.2 An API wrapper for Discord in Haskell
lts-9.21 discord-hs-0.4.2 An API wrapper for Discord in Haskell
lts-9.21 discord-rest-0.2.2 An API wrapper for Discord in Haskell
lts-9.21 discord-types-0.2.2 Type information for discord-hs
nightly-2026-01-18 discount-0.1.1 Haskell bindings to the discount Markdown library
nightly-2026-01-18 discover-instances-0.1.0.0
nightly-2026-01-18 discrimination-0.5 Fast generic linear-time sorting, joins and container construction
nightly-2026-01-18 disk-free-space-0.1.0.1 Retrieve information about disk space usage
lts-11.22 disposable-0.2.0.4 Allows storing different resource-releasing actions together
lts-11.22 distance-0.1.0.0 Useful distance datatype and functions
nightly-2026-01-18 distributed-closure-0.5.0.0 Serializable closures for distributed programming
nightly-2026-01-18 distributed-process-0.7.8 Cloud Haskell: Erlang-style concurrency in Haskell
nightly-2026-01-18 distributed-process-async-0.2.11 Cloud Haskell Async API
nightly-2026-01-18 distributed-process-client-server-0.2.8.0 The Cloud Haskell Application Platform
nightly-2026-01-18 distributed-process-execution-0.1.5.0 Execution Framework for The Cloud Haskell Application Platform
nightly-2026-01-18 distributed-process-extras-0.3.9 Cloud Haskell Extras
lts-11.22 distributed-process-lifted-0.3.0.1 monad-control style typeclass and transformer instances for Process monad
nightly-2026-01-18 distributed-process-monad-control-0.5.1.3 Orphan instances for MonadBase and MonadBaseControl
lts-6.35 distributed-process-registry-0.1.0.2 Cloud Haskell Extended Process Registry
nightly-2026-01-18 distributed-process-simplelocalnet-0.3.3 Simple zero-configuration backend for Cloud Haskell
nightly-2026-01-18 distributed-process-supervisor-0.2.4 Supervisors for The Cloud Haskell Application Platform
nightly-2026-01-18 distributed-process-systest-0.4.2 Cloud Haskell Test Support
lts-6.35 distributed-process-task-0.1.2.2 Task Framework for The Cloud Haskell Application Platform
nightly-2026-01-18 distributed-process-tests-0.5.2 Tests and test support tools for distributed-process
nightly-2026-01-18 distributed-static-0.3.11 Compositional, type-safe, polymorphic static values and closures
lts-11.22 distribution-1.1.1.0 Finite discrete probability distributions
nightly-2026-01-18 distribution-nixpkgs-1.7.1.1 Types and functions to manipulate the Nixpkgs distribution
lts-24.28 distribution-opensuse-1.1.4 Types, functions, and tools to manipulate the openSUSE distribution
nightly-2026-01-18 distributive-0.6.3 Distributive functors -- Dual to Traversable
lts-22.44 diversity-0.8.1.0 Quantify the diversity of a population
lts-6.35 dixi-0.6.9.2 A wiki implemented with a firm theoretical foundation
lts-11.22 djinn-ghc-0.0.2.3 Generate Haskell code from a type. Bridge from Djinn to GHC API
nightly-2026-01-18 djinn-lib-0.0.1.4 Generate Haskell code from a type. Library extracted from djinn package
nightly-2026-01-18 djot-0.1.2.4 Parser and renderer for djot light markup syntax
nightly-2026-01-18 dl-fedora-2.2 Fedora image download tool
nightly-2026-01-18 dlist-1.0 Difference lists
nightly-2026-01-18 dlist-instances-0.1.1.1 Difference lists instances
lts-23.28 dlist-nonempty-0.1.3 Non-empty difference lists
lts-9.21 dmenu-0.3.1.1 Complete bindings to the dmenu and dmenu2 command line tools
lts-9.21 dmenu-pkill-0.1.0.1 dmenu script for killing applications. Sortable by process id or CPU/MEM usage
lts-9.21 dmenu-pmount-0.1.0.1 Mounting and unmounting linux devices as user with dmenu and pmount
lts-9.21 dmenu-search-0.1.0.1 dmenu script for searching the web with customizable search engines
nightly-2026-01-18 dns-4.2.0 DNS library in Haskell
nightly-2026-01-18 dobutokO2-0.45.3.0 Helps to create experimental music from a file (or its part) and a Ukrainian text
lts-20.26 docker-0.7.0.1 An API client for docker written in Haskell
lts-11.22 docker-build-cacher-1.9.2 Builds a services with docker and caches all of its intermediate stages
nightly-2026-01-18 dockerfile-0.2.0 A Haskell DSL for generating Dockerfiles
nightly-2026-01-18 doclayout-0.5.0.1 A prettyprinting library for laying out text documents
nightly-2026-01-18 docopt-0.7.0.8 A command-line interface parser that will make you smile
nightly-2026-01-18 doctemplates-0.11.0.1 Pandoc-style document templates
nightly-2026-01-18 doctest-0.24.3 Test interactive Haskell examples
nightly-2026-01-18 doctest-discover-0.2.0.0 Easy way to run doctests via cabal
nightly-2026-01-18 doctest-driver-gen-0.3.0.8 Generate driver file for doctest's cabal integration
nightly-2026-01-18 doctest-exitcode-stdio-0.0.0.1 Run doctest's in a Cabal.Test.exitcode-stdio environment
nightly-2026-01-18 doctest-extract-0.1.2 Alternative doctest implementation that extracts comments to modules
nightly-2026-01-18 doctest-lib-0.1.1.1 Parts of doctest exposed as library
nightly-2026-01-18 doctest-parallel-0.4 Test interactive Haskell examples
lts-7.24 doctest-prop-0.2.0.1 Allow QuickCheck-style property testing within doctest
lts-7.24 docvim-0.3.2.1 Documentation generator for Vim plug-ins
nightly-2026-01-18 doldol-0.4.1.2 Flag packer & handler for flaggable data
nightly-2026-01-18 do-list-1.0.1 Do notation for free
nightly-2026-01-18 domain-0.1.1.5 Codegen helping you define domain models
nightly-2026-01-18 domain-aeson-0.1.1.3 Integration of domain with aeson
nightly-2026-01-18 domain-cereal-0.1.0.1 Integration of domain with cereal
nightly-2026-01-18 domain-core-0.1.0.4 Low-level API of "domain"
nightly-2026-01-18 domain-optics-0.1.0.4 Integration of domain with optics
lts-14.27 dom-parser-3.1.0 Simple monadic DOM parser
nightly-2026-01-18 do-notation-0.1.0.2 Generalize do-notation to work on monads and indexed monads simultaneously
nightly-2026-01-18 dot-0.3 Datatypes and encoding for graphviz dot files
lts-23.28 dotenv-0.12.0.0 Loads environment variables from dotenv files
nightly-2026-01-18 dotgen-0.4.3 A simple interface for building .dot graph files
nightly-2026-01-18 dotnet-timespan-0.0.1.0 .NET TimeSpan
nightly-2026-01-18 dotparse-0.1.3.0 dot language parsing and printing
nightly-2026-01-18 double-conversion-2.0.5.0 Fast conversion between single and double precision floating point and text
nightly-2026-01-18 download-0.3.2.7 High-level file download based on URLs
nightly-2026-01-18 download-curl-0.1.4 High-level file download based on URLs
lts-10.10 dpor-0.2.0.0 A generic implementation of dynamic partial-order reduction (DPOR) for testing arbitrary models of concurrency
nightly-2026-01-18 DPutils-0.1.1.0 utilities for DP
lts-23.28 drawille-0.1.3.0 A port of asciimoo's drawille to haskell
lts-12.26 DRBG-0.5.5 Deterministic random bit generator (aka RNG, PRNG) based HMACs, Hashes, and Ciphers
nightly-2026-01-18 drifter-0.3.0 Simple schema management for arbitrary databases
nightly-2026-01-18 drifter-postgresql-0.2.1 PostgreSQL support for the drifter schema migration tool
nightly-2026-01-18 drifter-sqlite-0.1.0.0 SQLite support for the drifter schema migraiton tool
lts-18.28 drinkery-0.4 Boozy streaming library
nightly-2026-01-18 dsp-0.2.5.2 Haskell Digital Signal Processing
lts-21.25 dual-0.1.1.1 Dual category
nightly-2026-01-18 dual-tree-0.2.3.1 Rose trees with cached and accumulating monoidal annotations
nightly-2026-01-18 dublincore-xml-conduit-0.1.0.3 XML streaming parser/renderer for the Dublin Core standard elements
nightly-2026-01-18 dunai-0.14.1 Generalised reactive framework supporting classic, arrowized and monadic FRP
lts-14.27 dunai-core-0.5.1.0 Generalised reactive framework supporting classic, arrowized and monadic FRP. (Core library fork.)
nightly-2026-01-18 duration-0.2.0.0 A tiny compile-time time utility library inspired by zeit/ms
lts-23.28 dvorak-0.1.0.0 Dvorak encoding for Haskell
nightly-2026-01-18 dynamic-state-0.3.2 Optionally serializable dynamic state keyed by type
nightly-2026-01-18 dyre-0.9.2 Dynamic reconfiguration in Haskell
lts-24.28 eap-0.9.0.2 Extensible Authentication Protocol (EAP)
lts-18.28 earcut-0.1.0.4 Binding to C++ earcut library
nightly-2026-01-18 Earley-0.13.0.1 Parsing all context-free grammars using Earley's algorithm
nightly-2026-01-18 easy-file-0.2.5 Cross-platform File handling
nightly-2026-01-18 easy-logger-0.1.0.7 Logging made easy
nightly-2026-01-18 easyplot-1.0 A tiny plotting library, utilizes gnuplot for plotting
lts-14.27 easytest-0.2.1 Simple, expressive testing library
nightly-2026-01-18 Ebnf2ps-1.0.15 Peter's Syntax Diagram Drawing Tool
nightly-2026-01-18 ech-config-0.0.1 Config for TLS Encrypted Client Hello
nightly-2026-01-18 echo-0.1.4 A cross-platform, cross-console way to handle echoing terminal input
nightly-2026-01-18 ecstasy-0.2.1.0 A GHC.Generics based entity component system
nightly-2026-01-18 ed25519-0.0.5.0 Ed25519 cryptographic signatures
nightly-2026-01-18 ede-0.3.4.0 Templating language with similar syntax and features to Liquid or Jinja2
lts-12.26 EdisonAPI-1.3.1 A library of efficient, purely-functional data structures (API)
lts-12.26 EdisonCore-1.3.2.1 A library of efficient, purely-functional data structures (Core Implementations)
nightly-2018-09-28 edit-1.0.1.0 A monad for rewriting things
nightly-2026-01-18 edit-distance-0.2.2.1 Levenshtein and restricted Damerau-Levenshtein edit distances
nightly-2026-01-18 edit-distance-vector-1.0.0.4 Calculate edit distances and edit scripts between vectors
nightly-2026-01-18 editor-open-0.6.0.0 Open the user's $VISUAL or $EDITOR for text input
nightly-2026-01-18 effectful-2.6.1.0 An easy to use, performant extensible effects library
nightly-2026-01-18 effectful-core-2.6.1.0 An easy to use, performant extensible effects library
nightly-2026-01-18 effectful-plugin-2.0.0.1 A GHC plugin for improving disambiguation of effects
nightly-2026-01-18 effectful-poolboy-0.1.0.0 Simple work queue for bounded concurrency (effectful wrapper)
nightly-2026-01-18 effectful-th-1.0.0.3 Template Haskell utilities for the effectful library
lts-10.10 effect-handlers-0.1.0.8 A library for writing extensible algebraic effects and handlers. Similar to extensible-effects but with deep handlers
lts-9.21 effin-0.3.0.3 A Typeable-free implementation of extensible effects
lts-18.28 egison-4.1.3 Programming language with non-linear pattern-matching against non-free data
nightly-2026-01-18 egison-pattern-src-0.2.1.2 Manipulating Egison patterns: abstract syntax, parser, and pretty-printer
lts-18.28 egison-pattern-src-th-mode-0.2.1.2 Parser and pretty printer for Egison pattern expressions to use with TH
nightly-2026-01-18 either-5.0.3 Combinators for working with sums
lts-21.25 either-both-0.1.1.1 Either or both
nightly-2026-01-18 either-unwrap-1.1 Functions for probing and unwrapping values inside of Either
nightly-2026-01-18 ekg-0.4.1.2 Remote monitoring of processes
lts-10.10 ekg-cloudwatch-0.0.1.6 An ekg backend for Amazon Cloudwatch
nightly-2026-01-18 ekg-core-0.1.2.0 Tracking of system metrics
nightly-2026-01-18 ekg-json-0.1.1.1 JSON encoding of ekg metrics
nightly-2026-01-18 ekg-statsd-0.2.6.2 Push metrics to statsd
nightly-2026-01-18 ekg-wai-0.1.2.0 Remote monitoring of processes
nightly-2026-01-18 elerea-2.9.0 A minimalistic FRP library
nightly-2026-01-18 elf-0.31 An Elf parser
nightly-2026-01-18 eliminators-0.9.6 Dependently typed elimination functions using singletons
nightly-2026-01-18 elm2nix-0.5.0 Turn your Elm project into buildable Nix project
nightly-2026-01-18 elm-bridge-0.8.4 Derive Elm types and Json code from Haskell types, using aeson's options
lts-1.15 elm-build-lib-0.14.0.0 Compile Elm code to JS within Haskell
lts-1.15 elm-compiler-0.14.1 Values to help with elm-package, elm-make, and elm-lang.org
nightly-2026-01-18 elm-core-sources-1.0.0 Source files for the Elm runtime and standard libraries
nightly-2026-01-18 elm-export-0.6.0.1 A library to generate Elm types from Haskell source
nightly-2022-02-07 elm-export-persistent-1.0.0 elm-export persistent entities
lts-1.15 elm-package-0.2.2 Package manager for Elm libraries
nightly-2026-01-18 elm-street-0.2.2.2 Crossing the road between Haskell and Elm
nightly-2026-01-18 elm-syntax-0.3.3.0 Elm syntax and pretty-printing
nightly-2026-01-18 elynx-0.9.0.0 Validate and (optionally) redo ELynx analyses
nightly-2026-01-18 elynx-markov-0.9.0.0 Simulate molecular sequences along trees
nightly-2026-01-18 elynx-nexus-0.9.0.0 Import and export Nexus files
nightly-2026-01-18 elynx-seq-0.9.0.0 Handle molecular sequences
nightly-2026-01-18 elynx-tools-0.9.0.0 Tools for ELynx
nightly-2026-01-18 elynx-tree-0.9.0.0 Handle phylogenetic trees
nightly-2026-01-18 emacs-module-0.3 Utilities to write Emacs dynamic modules
lts-11.22 emailaddress-0.2.0.0 Wrapper around email-validate library adding instances for common type classes
nightly-2026-01-18 email-validate-2.3.2.21 Email address validation
nightly-2026-01-18 emd-0.2.0.0 Empirical Mode Decomposition and Hilbert-Huang Transform
nightly-2026-01-18 emojis-0.1.4.1 Conversion between emoji characters and their names
nightly-2026-01-18 enclosed-exceptions-1.0.3 Catching all exceptions from within an enclosed computation
nightly-2026-01-18 encoding-0.10.2 A library for various character encodings
lts-9.21 encoding-io-0.0.1 Encoding-aware file I/O
nightly-2026-01-18 end-of-exe-0.1.2.0 A small library to deal with executable endings
lts-9.21 engine-io-1.2.17 A Haskell implementation of Engine.IO
lts-3.22 engine-io-growler-0.1.0.1
lts-9.21 engine-io-wai-1.0.7 An @engine-io@ @ServerAPI@ that is compatible with @Wai@
lts-6.35 engine-io-yesod-1.0.4
nightly-2026-01-18 ENIG-0.0.1.0 Auto Korean conjugator/adjustor/adopter/converter
lts-10.10 EntrezHTTP-1.0.4 Libary to interface with the NCBI Entrez REST service
nightly-2026-01-18 entropy-0.4.1.11 A platform independent entropy source
lts-5.16 enumerator-0.4.20 Reliable, high-performance processing with left-fold enumerators
nightly-2026-01-18 enummapset-0.7.3.0 IntMap and IntSet with Enum keys/elements
lts-9.21 enummapset-th-0.6.1.1 TH-generated EnumSet/EnumMap wrappers around IntSet/IntMap
nightly-2026-01-18 enumset-0.1 Sets of enumeration values represented by machine words
nightly-2026-01-18 enum-subset-generate-0.1.0.3 Generate an ADT being a subset of another ADT, and the corresponding mappings
nightly-2026-01-18 enum-text-0.5.3.0 A text rendering and parsing toolkit for enumerated types
lts-14.27 enum-text-rio-1.2.0.0 Making fmt available with rio
nightly-2026-01-18 envelope-0.2.2.0 Defines generic 'Envelope' type to wrap reponses from a JSON API
nightly-2026-01-18 envparse-0.6.0 Parse environment variables
nightly-2026-01-18 envy-2.1.5.0 An environmentally friendly way to deal with environment variables
nightly-2026-01-18 epub-metadata-5.4 Library for parsing epub document metadata
nightly-2026-01-18 eq-4.3 Leibnizian equality
nightly-2026-01-18 equal-files-0.0.5.4 Shell command for finding equal files
nightly-2026-01-18 equational-reasoning-0.7.1.0 Proof assistant for Haskell using DataKinds & PolyKinds
nightly-2026-01-18 equivalence-0.4.1.1 Maintaining an equivalence relation implemented as union-find using STT
nightly-2026-01-18 erf-2.0.0.0 The error function, erf, and related functions
lts-24.28 errata-0.4.0.3 Source code error pretty printing
nightly-2026-01-18 error-1.0.0.0 The canonical error type
nightly-2026-01-18 errorcall-eq-instance-0.3.0 An orphan Eq instance for ErrorCall
nightly-2026-01-18 error-or-0.3.0 Composable, hierarchical errors
nightly-2026-01-18 error-or-utils-0.2.0 Utilities using ErrorOr datatype
nightly-2026-01-18 errors-2.3.0 Simplified error-handling
nightly-2026-01-18 errors-ext-0.4.2 `bracket`-like functions for `ExceptT` over `IO` monad
lts-14.26 error-util-0.0.1.2 Set of utils and operators for error handling
nightly-2026-01-18 ersatz-0.6 A monad for expressing SAT or QSAT problems using observable sharing
nightly-2026-01-18 esqueleto-3.6.0.0 Type-safe EDSL for SQL queries on persistent backends
nightly-2026-01-18 essence-of-live-coding-0.2.9 General purpose live coding framework
nightly-2026-01-18 essence-of-live-coding-gloss-0.2.9 General purpose live coding framework - Gloss backend
nightly-2026-01-18 essence-of-live-coding-pulse-0.2.9 General purpose live coding framework - pulse backend
nightly-2026-01-18 essence-of-live-coding-quickcheck-0.2.9 General purpose live coding framework - QuickCheck integration
nightly-2026-01-18 essence-of-live-coding-warp-0.2.9 General purpose live coding framework
lts-18.28 etc-0.4.1.0 Declarative configuration spec for Haskell projects
lts-10.10 etcd-1.0.5 Client for etcd, a highly-available key value store
lts-11.22 ether-0.5.1.0 Monad transformers and classes
nightly-2025-11-23 euler-tour-tree-0.1.1.0 Euler tour trees
lts-9.21 euphoria-0.8.0.0 Dynamic network FRP with events and continuous values
lts-18.28 eve-0.1.9.0 An extensible event framework
lts-12.26 event-0.1.4 Monoidal, monadic and first-class events
lts-19.33 eventful-core-0.2.0 Core module for eventful
lts-10.10 eventful-dynamodb-0.2.0 Library for eventful DynamoDB event stores
lts-19.33 eventful-memory-0.2.0 In-memory implementations for eventful
lts-11.22 eventful-postgresql-0.2.0 Postgres implementations for eventful
lts-14.26 eventful-sql-common-0.2.0 Common library for SQL event stores
lts-14.26 eventful-sqlite-0.2.0 SQLite implementations for eventful
lts-19.33 eventful-test-helpers-0.2.0 Common module used for eventful tests
nightly-2026-01-18 event-list-0.1.3 Event lists with relative or absolute time stamps
nightly-2022-02-07 eventsource-api-1.5.1 Provides an eventsourcing high level API
lts-11.22 eventsource-geteventstore-store-1.1.0 GetEventStore store implementation
lts-11.22 eventsource-store-specs-1.1.1 Provides common test specification for Store implementation
nightly-2022-02-07 eventsource-stub-store-1.1.1 An in-memory stub store implementation
lts-21.25 eventstore-1.4.2 EventStore TCP Client
nightly-2026-01-18 every-0.0.1 Run a process every so often
nightly-2026-01-18 evm-opcodes-0.3.0 Opcode types for Ethereum Virtual Machine (EVM)
nightly-2026-01-18 exact-combinatorics-0.2.0.11 Efficient exact computation of combinatoric functions
nightly-2026-01-18 exact-pi-0.5.0.2 Exact rational multiples of pi (and integer powers of pi)
lts-6.35 exact-real-0.12.2 Exact real arithmetic
lts-14.26 exceptional-0.3.0.0 Essentially the Maybe type with error messages
nightly-2026-01-18 exception-hierarchy-0.1.0.14 Exception type hierarchy with TemplateHaskell
nightly-2026-01-18 exception-mtl-0.4.0.2 Exception monad transformer instances for mtl classes
nightly-2026-01-17 exceptions-0.10.10 Extensible optionally-pure exceptions
nightly-2026-01-18 exception-transformers-0.4.0.12 Type classes and monads for unchecked extensible exceptions
lts-22.44 exception-via-0.2.0.0 DerivingVia for your hierarchical exceptions
lts-24.28 executable-hash-0.2.0.4 Provides the SHA1 hash of the program executable
nightly-2026-01-18 executable-path-0.0.3.1 Finding out the full path of the executable
lts-11.22 exhaustive-1.1.6 Compile time checks that a computation considers producing data through all possible constructors
nightly-2026-01-18 exinst-0.9 Dependent pairs and their instances
nightly-2026-01-18 exit-codes-1.0.0 Exit codes as defined by BSD
nightly-2026-01-18 exomizer-1.0.0 Compression and decompression in the exomizer format
nightly-2026-01-18 exon-1.7.2.0 Customizable quasiquote interpolation
lts-21.25 experimenter-0.1.0.14 Perform scientific experiments stored in a DB, and generate reports
nightly-2026-01-18 expiring-cache-map-0.0.6.1 General purpose simple caching
lts-23.28 explainable-predicates-0.1.2.4 Predicates that can explain themselves
nightly-2026-01-18 explicit-exception-0.2 Exceptions which are explicit in the type signature
lts-0.7 ex-pool-0.2 Another fork of resource-pool, with a MonadIO and MonadCatch constraint
nightly-2026-01-18 exp-pairs-0.2.1.1 Linear programming over exponent pairs
nightly-2026-01-18 express-1.0.18 Dynamically-typed expressions involving function application and variables
nightly-2026-01-18 extended-reals-0.2.7.0 Extension of real numbers with positive/negative infinities
lts-23.28 extensible-0.9.2 Extensible, efficient, optics-friendly data types and effects
lts-23.28 extensible-effects-5.0.0.1 An Alternative to Monad Transformers
nightly-2026-01-18 extensible-exceptions-0.1.1.4 Extensible exceptions
nightly-2026-01-18 extra-1.8.1 Extra functions I use
nightly-2026-01-18 extractable-singleton-0.0.1 A functor, where the "stored" value is isomorphic to Identity
lts-9.21 extract-dependencies-0.2.0.1 Given a hackage package outputs the list of its dependencies
nightly-2026-01-18 extra-data-yj-0.1.0.0 Additional data types
nightly-2026-01-18 extrapolate-0.4.6 generalize counter-examples of test properties
lts-12.26 facts-0.0.1.0 Refined types
nightly-2026-01-18 fail-4.9.0.0 Forward-compatible MonadFail class
lts-21.25 failable-1.2.4.0 A 'Failable' error monad class to unify failure across monads that can fail
nightly-2026-01-18 FailT-0.1.2.0 A 'FailT' monad transformer that plays well with 'MonadFail'
lts-1.15 failure-0.2.0.3 A simple type class for success/failure computations. (deprecated)
nightly-2026-01-18 fakedata-1.0.5 Library for producing fake data
nightly-2026-01-18 fakedata-parser-0.1.0.0
lts-22.44 fakedata-quickcheck-0.2.0 Fake a -> Gen a
nightly-2026-01-18 fakefs-0.3.0.2 Extensible fake file system for testing
nightly-2026-01-18 fakepull-0.3.0.2 Monad to pull from fake stream-like objects
nightly-2026-01-18 faktory-1.1.3.2 Faktory Worker for Haskell
lts-24.28 falsify-0.2.0 Property-based testing with internal integrated shrinking
lts-16.31 farmhash-0.1.0.5 Fast hash functions
lts-22.44 fasta-0.10.4.2 A simple, mindless parser for fasta files
lts-24.28 fast-builder-0.1.5.0 Fast ByteString Builder
nightly-2026-01-18 fast-digits-0.3.2.0 Integer-to-digits conversion
nightly-2026-01-18 fast-logger-3.2.6 A fast logging system
nightly-2026-01-18 fast-math-1.0.2 Non IEEE-754 compliant compile-time floating-point optimisations
lts-21.25 fastmemo-0.1.1 Memoize functions on Generic types
nightly-2026-01-18 fast-myers-diff-0.0.1 A fast implementation of the Myers diff algorithm
lts-12.26 fay-0.24.0.1 A compiler for Fay, a Haskell subset that compiles to JavaScript
lts-12.26 fay-base-0.21.1.0 The base package for Fay
lts-8.24 fay-builder-0.2.0.5 Compile Fay code on cabal install, and ad-hoc recompile during development
lts-12.26 fay-dom-0.5.0.1 DOM FFI wrapper library for Fay
lts-8.24 fay-jquery-0.6.1.0 jQuery bindings for Fay
lts-5.16 fay-text-0.3.2.2 Fay Text type represented as JavaScript strings
lts-8.24 fay-uri-0.2.0.0 Persistent FFI bindings for using jsUri in Fay
lts-22.44 fb-2.1.1.1 Bindings to Facebook's API
lts-6.35 fb-persistent-0.3.6 Provides Persistent instances to Facebook types
nightly-2026-01-18 fbrnch-1.8 Fedora packager tool to build package branches
nightly-2026-01-18 fcf-family-0.2.0.3 Family of families: featherweight defunctionalization
lts-22.44 fclabels-2.0.5.1 First class accessor labels implemented as lenses
nightly-2026-01-18 fdo-notify-0.3.1 Desktop Notifications client
nightly-2026-01-18 feature-flags-0.1.0.1 A simple library for dynamically enabling and disabling functionality
lts-22.38 fedora-dists-2.1.1 Library for Fedora distribution versions
lts-22.38 fedora-haskell-tools-1.1 Building and maintenance tools for Fedora Haskell
nightly-2019-07-22 fedora-img-dl-0.4 Fedora image download tool
nightly-2026-01-18 fedora-krb-0.1.0 Kerberos for Fedora packagers
nightly-2026-01-18 fedora-releases-0.3.0 Library for Fedora release versions
nightly-2026-01-18 fedora-repoquery-0.8 Fedora release repos package query tool
nightly-2026-01-18 feed-1.3.2.1 Interfacing with RSS (v 0.9x, 2.x, 1.0) + Atom feeds
nightly-2026-01-18 FenwickTree-0.1.2.1 Data structure for fast query and update of cumulative sums
nightly-2026-01-18 fft-0.1.8.7 Bindings to the FFTW library
nightly-2026-01-18 fftw-ffi-0.1 Low-level interface to FFTW (Fast Fourier Transform)
nightly-2026-01-18 fgl-5.8.3.0 Martin Erwig's Functional Graph Library
lts-23.28 fgl-arbitrary-0.2.0.6 QuickCheck support for fgl
nightly-2026-01-18 fgl-visualize-0.1.0.1 Convert FGL graphs to dot (graphviz) files
lts-14.27 fib-0.1 fibonacci algebra
lts-23.28 fields-and-cases-0.2.0.0 Codegen Haskell types to other languages
nightly-2026-01-18 fields-json-0.4.0.0 Abusing monadic syntax JSON objects generation
nightly-2026-01-18 filecache-0.5.2 A cache system associating values to files
nightly-2026-01-18 file-embed-0.0.16.0 Use Template Haskell to embed file contents directly
nightly-2026-01-18 file-embed-lzma-0.1 Use Template Haskell to embed (LZMA compressed) data
nightly-2026-01-17 file-io-0.1.5 Basic file IO operations via 'OsPath'
lts-6.35 file-location-0.4.9.1 common functions that show file location information
nightly-2026-01-18 filelock-0.1.1.8 Portable interface to file locking (flock / LockFileEx)
nightly-2026-01-18 filemanip-0.3.6.3 Expressive file and directory manipulation for Haskell
nightly-2026-01-18 file-modules-0.1.2.4 Takes a Haskell source-code file and outputs its modules
nightly-2026-01-17 filepath-1.5.4.0 Library for manipulating FilePaths in a cross platform way
nightly-2026-01-18 filepath-bytestring-1.5.2.0.3 Library for manipulating RawFilePaths in a cross platform way
nightly-2026-01-18 file-path-th-0.1.0.0 Template Haskell utilities for filepaths
nightly-2026-01-18 filepattern-0.1.3 File path glob-like matching
nightly-2026-01-18 fileplow-0.1.0.0 Library to process and search large files or a collection of files
nightly-2026-01-18 filestore-0.6.5.1 Interface for versioning file stores
nightly-2026-01-18 filter-logger-0.6.0.0 Filterable request logging wai middleware. Change how data is logged and when
nightly-2026-01-18 filtrable-0.1.6.0 Class of filtrable containers
lts-24.28 fin-0.3.2 Nat and Fin: peano naturals and finite numbers
lts-12.26 Fin-0.2.7.0 Finite totally-ordered sets
nightly-2026-01-18 FindBin-0.0.5 Locate directory of original program
lts-12.26 find-clumpiness-0.2.3.1 Find the clumpiness of labels in a tree
nightly-2026-01-18 fingertree-0.1.6.3 Generic finger-tree structure, with example instances
lts-11.22 fingertree-psqueue-0.3 Implementation of priority search queues as finger trees
nightly-2026-01-18 finite-typelits-0.2.1.0 A type inhabited by finitely many values, indexed by type-level naturals
nightly-2026-01-18 first-class-families-0.8.2.0 First-class type families
lts-21.25 first-class-patterns-0.3.2.5 First class patterns and pattern matching, using type families
nightly-2026-01-18 fits-parse-0.4.2 Parse FITS files
nightly-2026-01-18 fitspec-0.4.10 refining property sets for testing Haskell programs
nightly-2026-01-18 fixed-0.3 Signed 15.16 precision fixed point arithmetic
nightly-2026-01-18 fixed-generic-0.1.0.2 Fixed-point number build on generic integral number
nightly-2026-01-18 fixed-length-0.2.3.1 Lists with statically known length based on non-empty package
lts-6.35 fixed-list-0.1.6 A fixed length list type
nightly-2026-01-18 fixed-vector-2.0.0.0 Generic vectors with statically known size
nightly-2026-01-18 fixed-vector-hetero-0.7.0.0 Library for working with product types generically
nightly-2026-01-18 fix-whitespace-0.1 Fixes whitespace issues
nightly-2026-01-18 flac-0.2.1 Complete high-level binding to libFLAC
nightly-2026-01-18 flac-picture-0.1.3 Support for writing pictures into FLAC metadata blocks with JuicyPixels
nightly-2026-01-18 flags-applicative-0.1.0.3 Applicative flag parsing
nightly-2026-01-18 flat-0.6 Principled and efficient bit-oriented binary serialization
lts-20.26 flat-mcmc-1.5.2 Painless general-purpose sampling
nightly-2026-01-18 flatparse-0.5.3.1 High-performance parsing from strict bytestrings
nightly-2026-01-18 flay-0.5 Generic programming for higher-kinded types
nightly-2026-01-18 flexible-defaults-0.0.3 Generate default function implementations for complex type classes
nightly-2026-01-18 FloatingHex-0.5 Read and write hexadecimal floating point numbers
nightly-2026-01-18 floatshow-0.2.4 Alternative faster String representations for Double and Float, String representations for more general numeric types
lts-5.16 flock-0.3.1.8 Wrapper for flock(2)
nightly-2026-01-18 flow-2.0.0.11 Write more understandable Haskell
lts-5.18 flowdock-0.3.0.1 Flowdock client library for Haskell
nightly-2026-01-18 flush-queue-1.0.0 Concurrent bouded blocking queues optimized for flushing. Both IO and STM implementations
nightly-2026-01-18 fmlist-0.9.4 FoldMap lists
nightly-2026-01-18 fmt-0.6.3.0 A new formatting library
lts-14.27 fmt-for-rio-1.0.0.0 Adaptor for getting fmt to work with rio
nightly-2026-01-18 fn-0.3.0.2 A functional web framework
lts-6.35 fn-extra-0.3.0.1 Extras for Fn, a functional web framework
nightly-2026-01-18 focus-1.0.3.2 A general abstraction for manipulating elements of container data structures
nightly-2026-01-18 focuslist-0.1.1.0 Lists with a focused element
lts-18.28 foldable1-0.1.0.0 Foldable types with at least 1 element
nightly-2026-01-18 foldable1-classes-compat-0.1.3 Compatibility package for the Foldable1 and Bifoldable1 type classes
nightly-2026-01-18 fold-debounce-0.2.0.17 Fold multiple events that happen in a given period of time
nightly-2026-01-18 fold-debounce-conduit-0.2.0.9 Regulate input traffic from conduit Source with Control.FoldDebounce
nightly-2026-01-18 foldl-1.4.18 Composable, streaming, and efficient left folds
lts-9.21 foldl-statistics-0.1.4.6 Statistical functions from the statistics package implemented as Folds
nightly-2026-01-18 folds-0.7.8 Beautiful Folding
lts-21.25 follow-file-0.0.3 Be notified when a file gets appended, solely with what was added. Warning - only works on linux and for files that are strictly appended, like log files
nightly-2026-01-18 FontyFruity-0.5.3.5 A true type file format loader
nightly-2026-01-18 force-layout-0.4.1 Simple force-directed layout
lts-6.35 forecast-io-0.2.0.0 A Haskell library for working with forecast.io data
nightly-2026-01-18 foreign-store-0.2.1 Store a stable pointer in a foreign context to be retrieved later
lts-1.15 foreign-var-0.0.0.1 Encapsulating mutatable state in external libraries
nightly-2026-01-18 ForestStructures-0.0.1.1 Tree- and forest structures
nightly-2026-01-18 forkable-monad-0.2.0.3 An implementation of forkIO for monad stacks
nightly-2026-01-18 forma-1.2.0 Parse and validate forms in JSON format
nightly-2026-01-18 formatn-0.3.3.1 Formatting of doubles
nightly-2026-01-18 format-numbers-0.1.0.1 Various number formatting functions
nightly-2026-01-18 formatting-7.2.0 Combinator-based type-safe formatting (like printf() or FORMAT)
lts-23.28 fortran-src-0.16.7 Parsers and analyses for Fortran standards 66, 77, 90, 95 and 2003 (partial)
nightly-2023-04-28 fortran-src-extras-0.4.1 Common functions and utils for fortran-src
nightly-2026-01-18 foundation-0.0.30 Alternative prelude with batteries and no dependencies
nightly-2026-01-18 fourmolu-0.19.0.1 A formatter for Haskell source code
lts-1.15 fpco-api-1.2.0.5 Simple interface to the FP Complete IDE API
lts-11.22 FPretty-1.1 Efficient simple pretty printing combinators
lts-23.28 Frames-0.7.4.2 Data frames for working with tabular data files
nightly-2022-12-05 freckle-app-1.7.0.0 Haskell application toolkit used at Freckle
nightly-2026-01-18 free-5.2 Monads for free
nightly-2026-01-18 free-alacarte-1.0.0.9 Free monads based on intuitions from the Data types à la Carte.
nightly-2026-01-18 free-categories-0.2.0.2 free categories
nightly-2026-01-18 free-foil-0.2.0 Efficient Type-Safe Capture-Avoiding Substitution for Free (Scoped Monads)
nightly-2026-01-18 freenect-1.2.1 Interface to the Kinect device
lts-9.21 freer-0.2.4.1 Implementation of the Freer Monad
nightly-2026-01-18 freer-base-classes-0.1.0.0 class NonDetable.N and Failable.F
lts-9.21 freer-effects-0.3.0.1 Implementation of effect system for Haskell
nightly-2026-01-18 freer-par-monad-0.1.0.0 Freer par monad
lts-23.28 freer-simple-1.2.1.2 A friendly effect system for Haskell
nightly-2026-01-18 freetype2-0.2.0 Haskell bindings for FreeType 2 library
nightly-2026-01-18 free-vl-0.1.4 van Laarhoven encoded Free Monad with Extensible Effects
lts-22.44 friday-0.2.3.2 A functional image processing library for Haskell
lts-22.44 friday-juicypixels-0.1.2.4 Converts between the Friday and JuicyPixels image types
nightly-2026-01-18 friendly-time-0.4.1 Print time information in friendly ways
nightly-2026-01-18 frisby-0.2.5 Linear time composable parser for PEG grammars
nightly-2026-01-18 from-1.0.0.1 Typeclasses for type conversion mappings
nightly-2026-01-18 from-string-1.0.0.2 Instances of 'From' for common string types
nightly-2026-01-18 from-sum-0.2.3.0 Combinators for working with Maybe and Either
nightly-2026-01-18 frontmatter-0.1.0.2 Parses frontmatter as used in Jekyll markdown files
nightly-2026-01-18 fsnotify-0.4.4.0 Cross platform library for file change notification
lts-20.26 fsnotify-conduit-0.1.1.1 Get filesystem notifications as a stream of events
nightly-2018-09-28 fswatch-0.1.0.5 File System watching tool with cli and slave functionalities
nightly-2026-01-18 ftcqueue-0.1.0.1 FTC Queue
nightly-2026-01-18 ftp-client-0.5.1.6 Transfer files with FTP and FTPS
lts-18.28 ftp-client-conduit-0.5.0.5 Transfer file with FTP and FTPS with Conduit
nightly-2026-01-18 funcmp-1.9 Functional MetaPost is a Haskell frontend to the MetaPost language
nightly-2026-01-18 function-builder-0.3.0.1 Create poly variadic functions for monoidal results
lts-23.28 functor-classes-compat-2.0.0.2 Data.Functor.Classes instances for core packages
nightly-2026-01-18 functor-combinators-0.4.1.4 Tools for functor combinator-based program design
nightly-2026-01-18 functor-products-0.1.2.2 General functor products for various Foldable instances
nightly-2026-01-18 fused-effects-1.1.2.6 A fast, flexible, fused effect system
nightly-2026-01-18 fusion-plugin-0.2.7 GHC plugin to make stream fusion more predictable
nightly-2026-01-18 fusion-plugin-types-0.1.0 Types for the fusion-plugin package
nightly-2026-01-18 fuzzcheck-0.1.1 A simple checker for stress testing monadic code
nightly-2026-01-18 fuzzy-0.1.1.0 Filters a list based on a fuzzy string search
nightly-2026-01-18 fuzzy-dates-0.1.1.2 Libary for parsing dates in strings in varied formats
nightly-2026-01-18 fuzzyset-0.3.2 Fuzzy set data structure for approximate string matching
nightly-2026-01-18 fuzzy-time-0.3.0.1
nightly-2019-09-21 galois-field-0.4.1 Galois field library
lts-6.35 gamma-0.9.0.2 Gamma function and related functions
lts-23.28 gauge-0.2.5 small framework for performance measurement and analysis
lts-14.26 gc-0.0.3 Poor Richard's Memory Manager
nightly-2026-01-18 gd-3000.7.3 A Haskell binding to a subset of the GD graphics library
lts-12.26 gdax-0.6.0.0 API Wrapping for Coinbase's GDAX exchange
nightly-2026-01-18 gdp-0.0.3.0 Reason about invariants and preconditions with ghosts of departed proofs
nightly-2026-01-18 gemini-exports-0.1.0.2 Generate CSV Exports of Your Gemini Trades, Transfers, & Earn Transactions
lts-11.22 Genbank-1.0.3 Libary for processing the NCBI genbank format
nightly-2026-01-18 general-games-1.1.1 Library supporting simulation of a number of games
nightly-2026-01-18 generic-aeson-0.2.0.14 Derivation of Aeson instances using GHC generics
nightly-2026-01-18 generically-0.1.1 Generically newtype to use with DerivingVia
nightly-2026-01-18 generic-arbitrary-1.0.1.2 Generic implementation for QuickCheck's Arbitrary
nightly-2026-01-18 generic-case-0.1.1.1 Generic case analysis
nightly-2026-01-18 generic-constraints-1.1.1.1 Constraints via Generic
nightly-2026-01-18 generic-data-1.1.0.2 Deriving instances with GHC.Generics and related utilities
nightly-2026-01-18 generic-data-functions-0.6.0 Familiar functions lifted to generic data types
nightly-2026-01-18 generic-data-surgery-0.3.0.0 Surgery for generic data types
nightly-2026-01-18 generic-deriving-1.14.7 Generic programming library for generalised deriving
nightly-2026-01-18 generic-enumeration-0.1.0.4 Generically derived enumerations
nightly-2026-01-18 generic-functor-1.1.0.0 Deriving generalized functors with GHC.Generics
nightly-2026-01-18 generic-lens-2.3.0.0 Generically derive traversals, lenses and prisms
nightly-2026-01-18 generic-lens-core-2.3.0.0 Generically derive traversals, lenses and prisms
nightly-2018-03-10 generic-lens-labels-0.1.0.2 GHC.OverloadedLabels.IsLabel instance for lenses from ghc-generics
nightly-2026-01-18 generic-lexicographic-order-0.1.0.1 Derive Bounded and Enum for sum types and Enum for product types
nightly-2026-01-18 generic-monoid-0.1.0.1 Derive monoid instances for product types
nightly-2026-01-18 generic-optics-2.3.0.0 Generically derive traversals, lenses and prisms
nightly-2026-01-18 GenericPretty-1.2.2 A generic, derivable, haskell pretty printer
nightly-2026-01-18 generic-random-1.5.0.1 Generic random generators for QuickCheck
nightly-2026-01-18 generics-eot-0.4.1.0 A library for generic programming that aims to be easy to understand
lts-14.27 generics-mrsop-2.1.0 Generic Programming with Mutually Recursive Sums of Products
nightly-2026-01-18 generics-sop-0.5.1.4 Generic Programming using True Sums of Products
lts-24.28 generics-sop-lens-0.2.1 Lenses for types in generics-sop
lts-6.35 generic-trie-0.3.0.2 A map, where the keys may be complex structured data
nightly-2026-01-18 generic-type-asserts-0.3.0 Structural assertions on generic type representations
nightly-2026-01-18 generic-type-functions-0.1.0 Familiar functions lifted to type-level functions on generic types
lts-12.26 generic-xmlpickler-0.1.0.5 Generic generation of HXT XmlPickler instances using GHC Generics
lts-23.28 geniplate-mirror-0.7.10 Use Template Haskell to generate Uniplate-like functions
nightly-2026-01-18 genvalidity-1.1.1.0 Testing utilities for the validity library
nightly-2026-01-18 genvalidity-aeson-1.0.0.1 GenValidity support for aeson
nightly-2026-01-18 genvalidity-appendful-0.1.0.0
nightly-2026-01-18 genvalidity-bytestring-1.0.0.1 GenValidity support for ByteString
nightly-2026-01-18 genvalidity-case-insensitive-0.0.0.1 GenValidity support for case-insensitive
nightly-2026-01-18 genvalidity-containers-1.0.0.2 GenValidity support for containers
nightly-2026-01-18 genvalidity-criterion-1.1.0.0 Criterion benchmarks for generators
nightly-2026-01-18 genvalidity-hspec-1.0.0.4 Standard spec's for GenValidity instances
nightly-2026-01-18 genvalidity-hspec-aeson-1.0.0.0 Standard spec's for aeson-related instances
nightly-2026-01-18 genvalidity-hspec-binary-1.0.0.0 Standard spec's for binary-related Instances
nightly-2026-01-18 genvalidity-hspec-cereal-1.0.0.0 Standard spec's for cereal-related instances
nightly-2026-01-18 genvalidity-hspec-hashable-1.0.0.1 Standard spec's for Hashable instances
nightly-2026-01-18 genvalidity-hspec-optics-1.0.0.0 Standard spec's for lens
nightly-2026-01-18 genvalidity-hspec-persistent-1.0.0.0 Standard spec's for persistent-related instances
nightly-2026-01-18 genvalidity-mergeful-0.3.0.1
nightly-2026-01-18 genvalidity-mergeless-0.3.0.0
nightly-2026-01-18 genvalidity-network-uri-0.0.0.0 GenValidity support for URI
nightly-2026-01-18 genvalidity-path-1.0.0.1 GenValidity support for Path
nightly-2026-01-18 genvalidity-persistent-1.0.0.2 GenValidity support for Persistent
nightly-2026-01-18 genvalidity-property-1.0.0.0 Standard properties for functions on `Validity` types
nightly-2026-01-18 genvalidity-scientific-1.0.0.0 GenValidity support for Scientific
nightly-2026-01-18 genvalidity-sydtest-1.0.1.0 Standard properties for functions on `Validity` types for the sydtest framework
nightly-2026-01-18 genvalidity-sydtest-aeson-1.0.0.0 Standard spec's for aeson-related instances in sydtest
nightly-2026-01-18 genvalidity-sydtest-hashable-1.0.0.1 Standard spec's for Hashable instances for sydtest
nightly-2026-01-18 genvalidity-sydtest-lens-1.0.0.0 Standard spec's for lens for sydtest
nightly-2026-01-18 genvalidity-sydtest-persistent-1.0.0.0 Standard spec's for persistent-related instances for sydtest
nightly-2026-01-18 genvalidity-text-1.0.0.1 GenValidity support for Text
nightly-2026-01-18 genvalidity-time-1.0.0.1 GenValidity support for time
nightly-2026-01-18 genvalidity-typed-uuid-0.1.0.1 Generators for Phantom-Typed version of UUID
nightly-2026-01-18 genvalidity-unordered-containers-1.0.0.1 GenValidity support for unordered-containers
nightly-2026-01-18 genvalidity-uuid-1.0.0.1 GenValidity support for UUID
nightly-2026-01-18 genvalidity-vector-1.0.0.0 GenValidity support for vector
nightly-2026-01-18 geodetics-2.0.0 Terrestrial coordinate systems and geodetic calculations
nightly-2026-01-18 geoip2-0.4.1.3 Pure haskell interface to MaxMind GeoIP database
nightly-2026-01-18 geojson-4.1.3 A thin GeoJSON Layer above the aeson library
nightly-2026-01-18 getopt-generics-0.13.1.0 Create command line interfaces with ease
nightly-2026-01-17 ghc-9.12.3 The GHC API
nightly-2026-01-17 ghc-bignum-1.3 GHC BigNum library
nightly-2026-01-18 ghc-bignum-orphans-0.1.1 Backwards-compatible orphan instances for ghc-bignum
nightly-2026-01-17 ghc-boot-9.12.3 Shared functionality between GHC and its boot libraries
nightly-2026-01-17 ghc-boot-th-9.12.3 Shared functionality between GHC and the template-haskell library
nightly-2026-01-18 ghc-byteorder-4.11.0.0.10 "GHC.ByteOrder" API Compatibility Layer
nightly-2026-01-18 ghc-check-0.5.0.8 detect mismatches between compile-time and run-time versions of the ghc api
nightly-2020-11-06 ghc-clippy-plugin-0.0.0.1 Override GHC error messages to the user's liking
nightly-2026-01-18 ghc-compact-0.1.0.0 In memory storage of deeply evaluated data structure
nightly-2026-01-18 ghc-core-0.5.6 Display GHC's core and assembly output in a pager
nightly-2026-01-18 ghc-events-0.21.0.0 Library and tool for parsing .eventlog files from GHC
nightly-2026-01-18 ghc-exactprint-1.12.0.0 ExactPrint for GHC
nightly-2026-01-17 ghc-experimental-9.1203.0 Experimental features of GHC's standard library
nightly-2026-01-17 ghc-heap-9.12.3 Functions for walking GHC's heap
lts-9.21 ghc-heap-view-0.5.10 Extract the heap representation of Haskell values and thunks
nightly-2026-01-18 ghc-hs-meta-0.1.5.0 Translate Haskell source to Template Haskell expression
nightly-2020-12-14 ghci-8.10.2 The library supporting GHC's interactive interpreter
nightly-2026-01-18 ghci4luatex-0.1.2 A GHCi session in LaTeX
nightly-2026-01-18 ghcid-0.8.9 GHCi based bare bones IDE
nightly-2026-01-18 ghci-hexcalc-0.1.1.0 GHCi as a Hex Calculator interactive
lts-6.35 ghc-imported-from-0.3.0.6 Find the Haddock documentation for a symbol
nightly-2026-01-17 ghc-internal-9.1203.0 Basic libraries
nightly-2022-02-07 ghcjs-base-stub-0.3.0.2 Allow GHCJS projects to compile under GHC and develop using intero
nightly-2026-01-18 ghcjs-codemirror-0.0.0.2 Installs CodeMirror JavaScript files
nightly-2026-01-18 ghcjs-dom-0.9.9.2 DOM library that supports both GHCJS and GHC
nightly-2026-01-18 ghcjs-dom-jsaddle-0.9.9.0 DOM library that supports both GHCJS and GHC using jsaddle
lts-8.24 ghcjs-hplay-0.3.4.2 Client-side web EDSL for transient nodes running in the web browser
nightly-2026-01-18 ghcjs-perch-0.3.3.3 GHCJS version of Perch library
nightly-2026-01-18 ghc-lib-9.12.3.20251228 The GHC API, decoupled from GHC versions
nightly-2026-01-18 ghc-lib-parser-9.12.3.20251228 The GHC API, decoupled from GHC versions
nightly-2026-01-18 ghc-lib-parser-ex-9.12.0.0 Programming with GHC parse trees
nightly-2017-06-28 ghc-mod-5.8.0.0 Happy Haskell Hacking
lts-6.35 ghc-mtl-1.2.1.0 An mtl compatible version of the Ghc-Api monads and monad-transformers
nightly-2026-01-18 ghc-parser-0.2.8.0 Haskell source parser from GHC
nightly-2026-01-18 ghc-paths-0.1.0.12 Knowledge of GHC's installation directories
nightly-2026-01-17 ghc-prim-0.13.0 GHC primitives
lts-21.25 ghc-prof-1.4.1.12 Library for parsing GHC time and allocation profiling reports
lts-6.35 ghc-session-0.1.2.1 Simplified GHC API
lts-24.28 ghc-source-gen-0.4.6.0 Constructs Haskell syntax trees for the GHC API
lts-11.22 ghc-syb-utils-0.2.3.3 Scrap Your Boilerplate utilities for the GHC API
nightly-2026-01-18 ghc-syntax-highlighter-0.0.13.0 Syntax highlighter for Haskell using the lexer of GHC
nightly-2026-01-18 ghc-tcplugin-api-0.18.2.0 An API for type-checker plugins
nightly-2026-01-18 ghc-tcplugins-extra-0.5 Utilities for writing GHC type-checker plugins
nightly-2026-01-18 ghc-trace-events-0.1.2.10 Faster traceEvent and traceMarker, and binary object logging for eventlog
nightly-2026-01-18 ghc-typelits-extra-0.5.2 Additional type-level operations on GHC.TypeLits.Nat
nightly-2026-01-18 ghc-typelits-knownnat-0.8.2 Derive KnownNat constraints from other KnownNat constraints
nightly-2026-01-18 ghc-typelits-natnormalise-0.9.3 GHC typechecker plugin for types of kind GHC.TypeLits.Nat
nightly-2026-01-18 ghc-typelits-presburger-0.7.4.2 Presburger Arithmetic Solver for GHC Type-level natural numbers
nightly-2026-01-18 ghost-buster-0.1.1.0 Existential type utilites
nightly-2026-01-18 ghostscript-parallel-0.0.1 Let Ghostscript render pages in parallel
nightly-2026-01-18 gi-atk-2.0.28 Atk bindings
nightly-2026-01-18 gi-cairo-1.0.30 Cairo bindings
nightly-2026-01-18 gi-cairo-connector-0.1.1 GI friendly Binding to the Cairo library
nightly-2026-01-18 gi-cairo-render-0.1.2 GI friendly Binding to the Cairo library
nightly-2026-01-18 gi-dbusmenu-0.4.14 Dbusmenu bindings
nightly-2026-01-18 gi-dbusmenugtk3-0.4.16 DbusmenuGtk bindings
nightly-2026-01-18 gi-freetype2-2.0.5 freetype2 bindings
nightly-2026-01-18 gi-gdk-4.0.10 Gdk bindings (compatibility layer)
nightly-2026-01-18 gi-gdk3-3.0.30 Gdk 3.x bindings
nightly-2026-01-18 gi-gdk4-4.0.10 Gdk bindings
nightly-2026-01-18 gi-gdkpixbuf-2.0.32 GdkPixbuf bindings
nightly-2026-01-18 gi-gdkx11-4.0.9 GdkX11 4.x bindings (compatibility layer)
nightly-2026-01-18 gi-gdkx113-3.0.17 GdkX11 3.x bindings
nightly-2026-01-18 gi-gdkx114-4.0.9 GdkX11 4.x bindings
nightly-2026-01-18 gi-gio-2.0.38 Gio bindings
nightly-2026-01-18 gi-glib-2.0.30 GLib bindings
nightly-2026-01-18 gi-gmodule-2.0.6 GModule bindings
nightly-2026-01-18 gi-gobject-2.0.31 GObject bindings
nightly-2026-01-18 gi-graphene-1.0.8 Graphene bindings
nightly-2026-01-18 gi-gsk-4.0.9 Gsk bindings
nightly-2026-01-18 gi-gtk-4.0.12 Gtk 4.x bindings (compatibility layer)
nightly-2026-01-18 gi-gtk3-3.0.44 Gtk 3.x bindings
nightly-2026-01-18 gi-gtk4-4.0.12 Gtk 4.x bindings
nightly-2026-01-18 gi-gtk-hs-0.3.18 A wrapper for gi-gtk, adding a few more idiomatic API parts on top
nightly-2026-01-18 gi-gtksource-5.0.2 GtkSource 5.x bindings (compatibility layer)
lts-23.28 gi-gtksource3-3.0.30 GtkSource 3.x bindings
nightly-2026-01-18 gi-gtksource5-5.0.2 GtkSource 5.x bindings
nightly-2026-01-18 gi-harfbuzz-0.0.10 HarfBuzz bindings
nightly-2026-01-18 gi-javascriptcore-6.0.5 JavaScriptCore 6.x bindings (compatibility layer)
nightly-2025-05-05 gi-javascriptcore4-4.0.29 JavaScriptCore 4.x bindings
nightly-2026-01-18 gi-javascriptcore6-6.0.5 JavaScriptCore 6.x bindings
nightly-2026-01-18 ginger-0.10.6.0 An implementation of the Jinja2 template language in Haskell
lts-18.28 gingersnap-0.3.1.0 Consistent and safe JSON APIs with snap-core and (by default) postgresql-simple
lts-24.28 gio-0.13.12.0 Binding to GIO
nightly-2026-01-18 gi-pango-1.0.30 Pango bindings
lts-8.24 gipeda-0.3.3.2 Git Performance Dashboard
lts-16.31 giphy-api-0.7.0.0 Giphy HTTP API wrapper and CLI search tool
nightly-2026-01-18 gi-soup-3.0.4 Libsoup 3.x bindings (compatibility layer)
lts-23.28 gi-soup2-2.4.30 Libsoup 2.4.x bindings
nightly-2026-01-18 gi-soup3-3.0.5 Libsoup 3.x bindings
lts-11.22 git-0.2.1 Git operations in haskell
lts-24.28 git-annex-10.20250416 manage files with git, without checking their contents into git
lts-2.22 git-embed-0.1.0 Use TH to embed Git repo information
lts-6.35 git-fmt-0.4.1.0 Custom git command for formatting code
nightly-2026-01-18 githash-0.1.7.0 Compile git revision info into Haskell projects
nightly-2026-01-18 github-0.30.0.1 Access to the GitHub API, v3
lts-6.27 github-backup-1.20160522 backs up everything github knows about a repository, to the repository
nightly-2026-01-18 github-release-2.0.0.17 Upload files to GitHub releases
nightly-2026-01-18 github-rest-1.2.1 Query the GitHub REST API programmatically
nightly-2026-01-18 github-types-0.2.1 Type definitions for objects used by the GitHub v3 API
lts-11.22 github-webhook-handler-0.0.8 GitHub WebHook Handler
lts-11.22 github-webhook-handler-snap-0.0.7 GitHub WebHook Handler implementation for Snap
lts-24.28 github-webhooks-0.18.0 Aeson instances for GitHub webhook payloads
nightly-2026-01-18 gitlab-haskell-1.1.0.0 A Haskell library for the GitLab web API
nightly-2026-01-18 git-lfs-1.2.5 git-lfs protocol
lts-23.28 gitlib-3.1.3 API library for working with Git repositories
lts-23.28 gitlib-libgit2-3.1.2.1 Libgit2 backend for gitlib
lts-23.28 gitlib-test-3.1.2 Test library for confirming gitlib backend compliance
nightly-2026-01-18 git-mediate-1.1.0 Tool to help resolving git conflicts
nightly-2026-01-18 gitrev-1.3.1 Compile git revision info into Haskell projects
lts-9.21 gitson-0.5.2 A document store library for Git + JSON
lts-12.26 git-vogue-0.3.0.2 A framework for pre-commit checks
nightly-2026-01-18 gi-vte-2.91.35 Vte bindings
lts-9.21 gi-webkit-3.0.14 WebKit bindings
lts-22.44 gi-webkit2-4.0.32 WebKit2 bindings
nightly-2026-01-18 gi-xlib-2.0.14 xlib bindings
nightly-2026-01-18 gl-0.9.1 Complete OpenGL raw bindings
nightly-2026-01-18 glabrous-2.0.6.4 A template DSL library
nightly-2026-01-18 glasso-0.1.0 Graphical Lasso algorithm
lts-14.26 glaze-0.3.0.1 Framework for rendering things with metadata/headers and values
lts-14.27 glazier-1.0.0.0 Extensible effects using ContT, State and variants
lts-11.22 glazier-pipes-0.1.5.1 A threaded rendering framework using glaizer and pipes
nightly-2018-09-28 glazier-react-1.0.0.0 ReactJS binding using Glazier.Command
nightly-2018-09-28 glazier-react-widget-1.0.0.0 Generic widget library using glazier-react
nightly-2026-01-18 GLFW-b-3.3.9.1 Bindings to GLFW OpenGL library
nightly-2026-01-18 glfw-group-0.1.0.6 GLFW package with window groups destroyed together
lts-24.28 glib-0.13.12.0 Binding to the GLIB library for Gtk2Hs
nightly-2026-01-18 glib-stopgap-0.1.0.1 Stopgap package of binding for GLib
nightly-2026-01-18 Glob-0.10.2 Globbing library
nightly-2026-01-18 glob-posix-0.2.0.1 Haskell bindings for POSIX glob library
nightly-2026-01-18 gloss-1.13.2.2 Painless 2D vector graphics, animations and simulations
lts-11.22 gloss-accelerate-2.0.0.1 Extras to interface Gloss and Accelerate
nightly-2026-01-18 gloss-algorithms-1.13.0.3 Data structures and algorithms for working with 2D graphics
lts-20.26 gloss-examples-1.13.0.4 Examples using the gloss library
nightly-2026-01-18 gloss-juicy-0.2.3 Load any image supported by Juicy.Pixels in your gloss application
lts-20.26 gloss-raster-1.13.1.2 Parallel rendering of raster images
lts-11.22 gloss-raster-accelerate-2.0.0.0 Parallel rendering of raster images using Accelerate
nightly-2026-01-18 gloss-rendering-1.13.2.1 Gloss picture data types and rendering functions
nightly-2026-01-18 glpk-headers-0.5.1 Low-level Haskell bindings to the GLPK library
nightly-2026-01-18 GLURaw-2.0.0.5 A raw binding for the OpenGL graphics system
nightly-2026-01-18 GLUT-2.7.0.16 A binding for the OpenGL Utility Toolkit
nightly-2015-12-14 GLUtil-0.8.8 Miscellaneous OpenGL utilities
lts-18.28 gluturtle-0.0.58.1 turtle like LOGO with glut
lts-22.44 gmail-simple-0.1.0.6 Simple library for Google Mail (GMail)
lts-6.35 gnuidn-0.2.2 Bindings for GNU IDN
nightly-2026-01-18 gnuplot-0.5.7 2D and 3D plots using gnuplot
lts-6.35 gnutls-0.2 Bindings for GNU libgnutls
lts-13.30 goggles-0.3.2 Extensible interface to Web APIs
nightly-2026-01-18 gogol-1.0.0.0 Comprehensive Google Services SDK
nightly-2026-01-18 gogol-adexchange-buyer-1.0.0 Google Ad Exchange Buyer SDK
nightly-2026-01-18 gogol-adexchange-seller-1.0.0 Google Ad Exchange Seller SDK
nightly-2026-01-18 gogol-admin-datatransfer-1.0.0 Google Admin SDK
nightly-2026-01-18 gogol-admin-directory-1.0.0 Google Admin SDK
lts-10.10 gogol-admin-emailmigration-0.3.0 Google Email Migration API v2 SDK
nightly-2026-01-18 gogol-admin-reports-1.0.0 Google Admin SDK
nightly-2026-01-18 gogol-adsense-1.0.0 Google AdSense Management SDK
nightly-2026-01-18 gogol-adsense-host-1.0.0 Google AdSense Host SDK
lts-10.10 gogol-affiliates-0.3.0 Google Affiliate Network SDK
nightly-2026-01-18 gogol-analytics-1.0.0 Google Analytics SDK
nightly-2026-01-18 gogol-android-enterprise-1.0.0 Google Play EMM SDK
nightly-2026-01-18 gogol-android-publisher-1.0.0 Google Play Android Developer SDK
nightly-2026-01-18 gogol-appengine-1.0.0 Google App Engine Admin SDK
nightly-2026-01-18 gogol-apps-activity-1.0.0 Google Drive Activity SDK
nightly-2026-01-18 gogol-apps-calendar-1.0.0 Google Calendar SDK
nightly-2026-01-18 gogol-apps-licensing-1.0.0 Google Enterprise License Manager SDK
nightly-2026-01-18 gogol-apps-reseller-1.0.0 Google Workspace Reseller SDK
nightly-2026-01-18 gogol-apps-tasks-1.0.0 Google Tasks SDK
nightly-2026-01-18 gogol-appstate-1.0.0 Google App State SDK
lts-10.10 gogol-autoscaler-0.3.0 Google Compute Engine Autoscaler SDK
nightly-2026-01-18 gogol-bigquery-1.0.0 Google BigQuery SDK
nightly-2026-01-18 gogol-billing-1.0.0 Google Cloud Billing SDK
nightly-2026-01-18 gogol-blogger-1.0.0 Google Blogger SDK
nightly-2026-01-18 gogol-books-1.0.0 Google Books SDK
nightly-2026-01-18 gogol-civicinfo-1.0.0 Google Civic Information SDK
nightly-2026-01-18 gogol-classroom-1.0.0 Google Classroom SDK
lts-10.10 gogol-cloudmonitoring-0.3.0 Google Cloud Monitoring SDK
nightly-2026-01-18 gogol-cloudtrace-1.0.0 Google Cloud Trace SDK
nightly-2026-01-18 gogol-compute-1.0.0 Google Compute Engine SDK
nightly-2026-01-18 gogol-container-1.0.0 Google Kubernetes Engine SDK
nightly-2026-01-18 gogol-core-1.0.0.0 Core data types and functionality for Gogol libraries
nightly-2026-01-18 gogol-customsearch-1.0.0 Google Custom Search SDK
nightly-2026-01-18 gogol-dataflow-1.0.0 Google Dataflow SDK
nightly-2026-01-18 gogol-dataproc-1.0.0 Google Cloud Dataproc SDK
nightly-2026-01-18 gogol-datastore-1.0.0 Google Cloud Datastore SDK
nightly-2026-01-18 gogol-debugger-1.0.0 Google Cloud Debugger API (Deprecated) SDK
nightly-2026-01-18 gogol-deploymentmanager-1.0.0 Google Cloud Deployment Manager V2 SDK
nightly-2026-01-18 gogol-dfareporting-1.0.0 Google Campaign Manager 360 SDK
nightly-2026-01-18 gogol-discovery-1.0.0 Google API Discovery Service SDK
nightly-2026-01-18 gogol-dns-1.0.0 Google Cloud DNS SDK
nightly-2026-01-18 gogol-doubleclick-bids-1.0.0 Google DoubleClick Bid Manager SDK
nightly-2026-01-18 gogol-doubleclick-search-1.0.0 Google Search Ads 360 SDK
nightly-2026-01-18 gogol-drive-1.0.0 Google Drive SDK
nightly-2026-01-18 gogol-firebase-rules-1.0.0 Google Firebase Rules SDK
nightly-2026-01-18 gogol-fitness-1.0.0 Google Fitness SDK
nightly-2026-01-18 gogol-fonts-1.0.0 Google Web Fonts Developer SDK
lts-10.10 gogol-freebasesearch-0.3.0 Google Freebase Search SDK
nightly-2026-01-18 gogol-fusiontables-1.0.0 Google Fusion Tables SDK
nightly-2026-01-18 gogol-games-1.0.0 Google Play Game Services SDK
nightly-2026-01-18 gogol-games-configuration-1.0.0 Google Play Game Services Publishing SDK
nightly-2026-01-18 gogol-games-management-1.0.0 Google Play Game Management SDK
nightly-2026-01-18 gogol-genomics-1.0.0 Google Genomics SDK
nightly-2026-01-18 gogol-gmail-1.0.0 Google Gmail SDK
nightly-2026-01-18 gogol-groups-migration-1.0.0 Google Groups Migration SDK
nightly-2026-01-18 gogol-groups-settings-1.0.0 Google Groups Settings SDK
nightly-2026-01-18 gogol-identity-toolkit-1.0.0 Google Identity Toolkit SDK
nightly-2026-01-18 gogol-kgsearch-1.0.0 Google Knowledge Graph Search SDK
lts-10.10 gogol-latencytest-0.3.0 Google Cloud Network Performance Monitoring SDK
nightly-2026-01-18 gogol-logging-1.0.0 Google Cloud Logging SDK
lts-10.10 gogol-maps-coordinate-0.3.0 Google Maps Coordinate SDK
lts-10.10 gogol-maps-engine-0.3.0 Google Maps Engine SDK
nightly-2026-01-18 gogol-mirror-1.0.0 Google Mirror SDK
nightly-2026-01-18 gogol-monitoring-1.0.0 Google Cloud Monitoring SDK
nightly-2026-01-18 gogol-oauth2-1.0.0 Google OAuth2 SDK
nightly-2026-01-18 gogol-pagespeed-1.0.0 Google PageSpeed Insights SDK
nightly-2026-01-18 gogol-partners-1.0.0 Google Partners SDK
nightly-2026-01-18 gogol-people-1.0.0 Google People SDK
nightly-2026-01-18 gogol-play-moviespartner-1.0.0 Google Play Movies Partner SDK
nightly-2026-01-18 gogol-plus-1.0.0 Google + SDK
nightly-2026-01-18 gogol-plus-domains-1.0.0 Google + Domains SDK
lts-10.10 gogol-prediction-0.3.0 Google Prediction SDK
nightly-2026-01-18 gogol-proximitybeacon-1.0.0 Google Proximity Beacon SDK
nightly-2026-01-18 gogol-pubsub-1.0.0 Google Cloud Pub/Sub SDK
nightly-2026-01-18 gogol-qpxexpress-1.0.0 Google QPX Express SDK
nightly-2026-01-18 gogol-replicapool-1.0.0 Google Replica Pool SDK
nightly-2026-01-18 gogol-replicapool-updater-1.0.0 Google Compute Engine Instance Group Updater SDK
nightly-2026-01-18 gogol-resourcemanager-1.0.0 Google Cloud Resource Manager SDK
lts-10.10 gogol-resourceviews-0.3.0 Google Compute Engine Instance Groups SDK
nightly-2026-01-18 gogol-script-1.0.0 Google Apps Script SDK
nightly-2026-01-18 gogol-sheets-1.0.0 Google Sheets SDK
nightly-2026-01-18 gogol-shopping-content-1.0.0 Google Content API for Shopping SDK
nightly-2026-01-18 gogol-siteverification-1.0.0 Google Site Verification SDK
nightly-2026-01-18 gogol-spectrum-1.0.0 Google Spectrum Database SDK
nightly-2026-01-18 gogol-sqladmin-1.0.0 Google Cloud SQL Admin SDK
nightly-2026-01-18 gogol-storage-1.0.0 Google Cloud Storage JSON SDK
nightly-2026-01-18 gogol-storage-transfer-1.0.0 Google Storage Transfer SDK
nightly-2026-01-18 gogol-tagmanager-1.0.0 Google Tag Manager SDK
lts-10.10 gogol-taskqueue-0.3.0 Google TaskQueue SDK
nightly-2026-01-18 gogol-translate-1.0.0 Google Cloud Translation SDK
nightly-2026-01-18 gogol-urlshortener-1.0.0 Google URL Shortener SDK
lts-10.10 gogol-useraccounts-0.3.0 Google Cloud User Accounts SDK
nightly-2026-01-18 gogol-vision-1.0.0 Google Cloud Vision SDK
nightly-2026-01-18 gogol-webmaster-tools-1.0.0 Google Search Console SDK
nightly-2026-01-18 gogol-youtube-1.0.0 Google YouTube Data API v3 SDK
nightly-2026-01-18 gogol-youtube-analytics-1.0.0 Google YouTube Analytics SDK
nightly-2026-01-18 gogol-youtube-reporting-1.0.0 Google YouTube Reporting SDK
nightly-2026-01-18 goldplate-0.2.2.1 A lightweight golden test runner
lts-11.22 google-cloud-0.0.4 Client for the Google Cloud APIs
nightly-2026-01-18 google-isbn-1.0.3
nightly-2026-01-18 google-oauth2-jwt-0.3.3.2 Get a signed JWT for Google Service Accounts
lts-10.10 google-translate-0.4.1 Google Translate API bindings
nightly-2026-01-18 gopher-proxy-0.1.1.3 proxy gopher over http
nightly-2026-01-18 gothic-0.1.8.4 A Haskell Vault KVv2 secret engine client
lts-20.26 gotyno-hs-1.1.0 A type definition compiler supporting multiple output languages
lts-11.22 GPipe-2.2.3 Typesafe functional GPU graphics programming
lts-9.21 GPipe-GLFW-1.4.1.1 GLFW OpenGL context creation for GPipe
nightly-2026-01-18 gpolyline-0.1.0.1 Pure module for encoding/decoding Google Polyline
nightly-2026-01-18 granite-0.3.0.5 Easy terminal plotting
nightly-2026-01-18 graph-core-0.3.0.0 Fast, memory efficient and persistent graph implementation
nightly-2026-01-18 graphite-0.10.0.1 Graphs and networks library
nightly-2026-01-18 graphql-1.5.0.2 Haskell GraphQL implementation
nightly-2026-01-18 graphql-client-1.2.4 A client for Haskell programs to query a GraphQL API
nightly-2026-01-18 graphql-spice-1.0.6.0 GraphQL with batteries
nightly-2026-01-18 graphs-0.7.3 A simple monadic graph library
nightly-2017-10-02 GraphSCC-1.0.4 Tarjan's algorithm for computing the strongly connected components of a graph
nightly-2026-01-18 graphula-2.1.2.0 A simple interface for generating persistent data and linking its dependencies
nightly-2026-01-18 graphviz-2999.20.2.1 Bindings to Graphviz for graph visualisation
lts-22.44 graph-wrapper-0.2.6.0 A wrapper around the standard Data.Graph with a less awkward interface
nightly-2026-01-18 gravatar-0.8.1 Generate Gravatar image URLs
lts-14.26 graylog-0.1.0.1 Support for graylog output
nightly-2026-01-18 greskell-2.0.3.3 Haskell binding for Gremlin graph query language
nightly-2026-01-18 greskell-core-1.0.0.6 Haskell binding for Gremlin graph query language - core data types and tools
nightly-2026-01-18 greskell-websocket-1.0.0.4 Haskell client for Gremlin Server using WebSocket serializer
nightly-2026-01-18 gridtables-0.1.1.0 Parser for reStructuredText-style grid tables
lts-24.28 grisette-0.13.0.1 Symbolic evaluation as a library
nightly-2026-01-18 groom-0.1.2.1 Pretty printing for well-behaved Show instances
lts-19.33 groundhog-0.12.0 Type-safe datatype-database mapping library
lts-14.27 groundhog-inspector-0.10.0 Type-safe datatype-database mapping library
lts-14.26 groundhog-mysql-0.10 MySQL backend for the groundhog library
lts-19.33 groundhog-postgresql-0.12 PostgreSQL backend for the groundhog library
lts-19.33 groundhog-sqlite-0.12.0 Sqlite3 backend for the groundhog library
nightly-2022-02-07 groundhog-th-0.12 Type-safe datatype-database mapping library
nightly-2026-01-18 group-by-date-0.1.0.5 Shell command for grouping files by dates into folders
lts-20.26 grouped-list-0.2.3.0 Grouped lists. Equal consecutive elements are grouped
lts-10.10 groupoids-4.0 This package has been absorbed into semigroupoids 4.0
nightly-2026-01-18 groups-0.5.3 Groups
lts-6.35 growler-0.6.0 A revised version of the scotty library that attempts to be simpler and more performant
lts-6.35 gsasl-0.3.6 Bindings for GNU libgsasl
lts-24.28 gtk-0.15.10 Binding to the Gtk+ graphical user interface library
nightly-2026-01-18 gtk2hs-buildtools-0.13.12.0 Tools to build the Gtk2Hs suite of User Interface libraries
lts-24.28 gtk3-0.15.10 Binding to the Gtk+ 3 graphical user interface library
nightly-2026-01-18 gtk-sni-tray-0.1.9.0 A standalone StatusNotifierItem/AppIndicator tray
lts-9.21 gtksourceview3-0.13.3.1 Binding to the GtkSourceView library
nightly-2026-01-18 gtk-strut-0.1.4.0 Library for creating strut windows with gi-gtk
nightly-2026-01-18 guarded-allocation-0.0.1 Memory allocation with added stress tests and integrity checks
lts-14.27 gym-http-api-0.1.0.1 REST client to the gym-http-api project
lts-22.44 H-1.0.0 The Haskell/R mixed programming environment
lts-13.30 h2c-1.0.0 Bindings to Linux I2C with support for repeated-start transactions
nightly-2026-01-18 hackage-cli-0.1.0.4 CLI tool for Hackage
nightly-2026-01-18 hackage-db-2.1.3 Access cabal-install's Hackage database via Data.Map
lts-6.35 hackage-mirror-0.1.1.1 Simple mirroring utility for Hackage
nightly-2026-01-18 hackage-revdeps-0.3 List Hackage reverse dependencies
nightly-2026-01-18 hackage-security-0.6.3.2 Hackage security library
nightly-2026-01-18 hackage-security-HTTP-0.1.1.3 Hackage security bindings against the HTTP library
lts-6.35 hackage-whatsnew-0.1.0.1 Check for differences between working directory and hackage
lts-10.10 hackernews-1.3.0.0 API for Hacker News
lts-6.35 hackmanager-0.1.0.0 Generate useful files for Haskell projects
lts-9.21 haddock-2.17.4 A documentation-generation tool for Haskell libraries
lts-9.21 haddock-api-2.17.4 A documentation-generation tool for Haskell libraries
lts-24.28 haddock-library-1.11.0 Library exposing some functionality of Haddock
lts-9.21 haddock-test-0.0.1 Test utilities for Haddock
lts-6.35 haddocset-0.4.2 Generate docset of Dash by Haddock haskell documentation tool
nightly-2021-03-14 hadolint-1.23.0 Dockerfile Linter JavaScript API
lts-19.33 hadoop-streaming-0.2.0.3 A simple Hadoop streaming library
nightly-2026-01-18 haha-0.3.1.1 A simple library for creating animated ascii art on ANSI terminals
lts-13.30 hailgun-0.4.2 Mailgun REST api interface for Haskell
lts-11.22 hailgun-simple-0.1.0.0 Easy-to-use wrapper for the hailgun package
nightly-2026-01-18 hakyll-4.16.7.1 A static website compiler library
lts-22.44 hakyllbars-1.0.1.0 A Hakyll compiler for Handlebars-like templates
nightly-2026-01-18 hakyll-convert-0.3.0.5 Convert from other blog engines to Hakyll
lts-9.21 hakyll-favicon-0.1.0
lts-6.35 hakyll-sass-0.2.2 Hakyll SASS compiler over hsass
nightly-2026-01-18 hal-1.1 A runtime environment for Haskell applications running on AWS Lambda
nightly-2026-01-18 half-0.3.3 Half-precision floating-point
nightly-2026-01-18 hall-symbols-0.1.0.6 Symmetry operations generater of Hall Symbols
nightly-2023-12-07 hamilton-0.1.0.3 Physics on generalized coordinate systems using Hamiltonian Mechanics and AD
nightly-2026-01-18 hamlet-1.2.0 Haml-like template files that are compile-time checked (deprecated)
nightly-2026-01-18 hamtsolo-1.0.4 Intel AMT serial-over-lan (SOL) client
nightly-2026-01-18 HandsomeSoup-0.4.2 Work with HTML more easily in HXT
lts-23.28 handwriting-0.1.0.3 API Client for the handwriting.io API
lts-18.28 hapistrano-0.4.3.0 A deployment library for Haskell applications
lts-8.24 happstack-authenticate-2.3.4.8 Happstack Authentication Library
lts-8.24 happstack-clientsession-7.3.1 client-side session data
lts-21.25 happstack-hsp-7.3.7.7 Support for using HSP templates in Happstack
nightly-2026-01-18 happstack-jmacro-7.0.12.6 Support for using JMacro with Happstack
nightly-2026-01-18 happstack-server-7.9.3 Web related tools and services
nightly-2026-01-18 happstack-server-tls-7.2.1.7 extend happstack-server with https:// support (TLS/SSL)
nightly-2026-01-18 happy-2.1.7 Happy is a parser generator for Haskell
nightly-2026-01-18 happy-dot-1.0.0.1 Parser for dot made with happy
nightly-2026-01-18 happy-lib-2.1.7 Happy is a parser generator for Haskell implemented using this library
nightly-2026-01-18 happy-meta-0.2.1.0 Quasi-quoter for Happy parsers
nightly-2017-06-28 HaRe-0.8.4.1 the Haskell Refactorer
lts-21.25 harp-0.4.3.6 HaRP allows pattern-matching with regular expressions
nightly-2026-01-18 harpie-0.2.0.0 Haskell array programming
nightly-2026-01-18 harpie-numhask-0.2.0.0 numhask shim for harpie
nightly-2026-01-18 HasBigDecimal-0.2.0.0 A library for arbitrary precision decimal numbers
nightly-2026-01-18 hasbolt-0.1.7.2 Haskell driver for Neo4j 3+ (BOLT protocol)
nightly-2026-01-18 hashable-1.5.1.0 A class for types that can be converted to a hash value
lts-6.35 hashable-extras-0.2.3 Higher-rank Hashable
lts-19.33 hashable-time-0.3 Hashable instances for Data.Time
lts-23.28 hashids-1.1.1.0 Hashids generates short, unique, non-sequential ids from numbers
lts-22.44 hashing-0.1.1.0 A pure haskell library implements several hash algorithms
nightly-2026-01-18 hashmap-1.3.3 Persistent containers Map and Set based on hashing
nightly-2026-01-18 hashtables-1.4.2 Mutable hash tables in the ST monad
nightly-2026-01-18 hash-tree-0.0.1 Merkle Hash Tree
nightly-2026-01-17 haskeline-0.8.2.1 A command-line interface for user input, written in Haskell
lts-2.22 haskell2010-1.1.2.0 Compatibility with Haskell 2010
lts-2.22 haskell98-2.0.0.3 Compatibility with Haskell 98
lts-19.33 haskell-awk-1.2.0.1 Transform text from the command-line using Haskell expressions
nightly-2017-01-17 haskell-docs-4.2.7 A program to find and display the docs and type of a name
nightly-2026-01-18 haskell-gi-0.26.17 Generate Haskell bindings for GObject Introspection capable libraries
nightly-2026-01-18 haskell-gi-base-0.26.9 Foundation for libraries generated by haskell-gi
nightly-2026-01-18 haskell-gi-overloading-1.0 Overloading support for haskell-gi
nightly-2026-01-18 haskell-igraph-0.8.5 Bindings to the igraph C library (v0.8.5)
lts-18.28 haskell-import-graph-1.0.4 create haskell import graph for graphviz
nightly-2016-04-28 haskell-kubernetes-0.3.2 Haskell bindings to the Kubernetes API (via swagger-codegen)
nightly-2026-01-18 haskell-lexer-1.2.1 A fully compliant Haskell 98 lexer
lts-18.28 haskell-lsp-0.24.0.0 Haskell library for the Microsoft Language Server Protocol
lts-11.22 haskell-lsp-client-1.0.0.1 A haskell package to build your own Language Server client
lts-19.33 haskell-lsp-types-0.24.0.0 Haskell library for the Microsoft Language Server Protocol, data types
lts-18.28 haskell-names-0.9.9 Name resolution library for Haskell
lts-11.22 haskell-neo4j-client-0.3.2.4 A Haskell neo4j client
nightly-2026-01-18 HaskellNet-0.6.2 Client support for POP3, SMTP, and IMAP
nightly-2026-01-18 HaskellNet-SSL-0.4.0.2 Helpers to connect to SSL/TLS mail servers with HaskellNet
lts-9.21 haskell-packages-0.5 Haskell suite library for package management and integration with Cabal
lts-14.27 haskell-spacegoo-0.2.0.1 Client API for Rocket Scissor Spacegoo
nightly-2026-01-18 haskell-src-1.0.4.2 Support for manipulating Haskell source code
nightly-2026-01-18 haskell-src-exts-1.23.1 Manipulating Haskell source: abstract syntax, lexer, parser, and pretty-printer
nightly-2026-01-18 haskell-src-exts-simple-1.23.1.0 A simplified view on the haskell-src-exts AST
nightly-2026-01-18 haskell-src-exts-util-0.2.5 Helper functions for working with haskell-src-exts trees
nightly-2026-01-18 haskell-src-meta-0.8.15 Parse source to template-haskell abstract syntax
lts-12.26 haskell-tools-ast-1.1.0.2 Haskell AST for efficient tooling
lts-12.26 haskell-tools-backend-ghc-1.1.0.2 Creating the Haskell-Tools AST from GHC's representations
lts-12.26 haskell-tools-builtin-refactorings-1.1.0.2 Refactoring Tool for Haskell
nightly-2018-09-28 haskell-tools-cli-1.1.0.2 Command-line frontend for Haskell-tools Refact
nightly-2018-09-28 haskell-tools-daemon-1.1.0.2 Background process for Haskell-tools that editors can connect to
lts-12.26 haskell-tools-debug-1.1.0.2 Debugging Tools for Haskell-tools
lts-12.26 haskell-tools-demo-1.1.0.2 A web-based demo for Haskell-tools Refactor
lts-12.26 haskell-tools-prettyprint-1.1.0.2 Pretty printing of Haskell-Tools AST
lts-12.26 haskell-tools-refactor-1.1.0.2 Refactoring Tool for Haskell
lts-12.26 haskell-tools-rewrite-1.1.0.2 Facilities for generating new parts of the Haskell-Tools AST
lts-12.26 haskey-0.3.0.2 A transactional, ACID compliant, embeddable key-value store
nightly-2026-01-18 haskey-btree-0.3.0.1 B+-tree implementation in Haskell
lts-12.26 haskey-mtl-0.3.1.0 A monad transformer supporting Haskey transactions
nightly-2026-01-18 haskintex-0.8.0.3 Haskell Evaluation inside of LaTeX code
nightly-2026-01-18 haskoin-core-1.2.2 Bitcoin & Bitcoin Cash library for Haskell
nightly-2026-01-18 haskoin-node-1.1.4 P2P library for Bitcoin and Bitcoin Cash
nightly-2026-01-18 haskoin-store-1.5.16 Storage and index for Bitcoin and Bitcoin Cash
nightly-2026-01-18 haskoin-store-data-1.5.16 Data for Haskoin Store
nightly-2026-01-18 hasktags-0.73.0 Produces ctags "tags" and etags "TAGS" files for Haskell programs
lts-11.22 hasmin-1.0.2 CSS Minifier
nightly-2026-01-18 hasql-1.9.3.1 Fast PostgreSQL driver with a flexible mapping API
lts-5.18 hasql-backend-0.4.2 API for backends of "hasql"
nightly-2026-01-18 hasql-dynamic-statements-0.3.1.8 Toolkit for constructing Hasql statements dynamically
nightly-2026-01-18 hasql-implicits-0.2.0.2 Implicit definitions for Hasql, such as default codecs for standard types
nightly-2026-01-18 hasql-interpolate-1.0.1.0 QuasiQuoter that supports expression interpolation for hasql
nightly-2026-01-18 hasql-listen-notify-0.1.0.1 LISTEN/NOTIFY with hasql
nightly-2026-01-18 hasql-migration-0.3.1 PostgreSQL Schema Migrations
nightly-2026-01-18 hasql-notifications-0.2.4.0 LISTEN/NOTIFY support for Hasql
nightly-2026-01-18 hasql-optparse-applicative-0.9 "optparse-applicative" parsers for "hasql"
nightly-2026-01-18 hasql-pool-1.3.0.4 Pool of connections for Hasql
lts-3.22 hasql-postgres-0.10.6 A "PostgreSQL" backend for the "hasql" library
lts-21.25 hasql-queue-1.2.0.2 A PostgreSQL backed queue
nightly-2026-01-18 hasql-th-0.4.0.23 Template Haskell utilities for Hasql
nightly-2026-01-18 hasql-transaction-1.2.1 Composable abstraction over retryable transactions for Hasql
lts-11.22 hastache-0.6.1 Haskell implementation of Mustache templates
nightly-2026-01-18 has-transformers-0.1.0.4 This library 'Has' transformers
lts-24.28 Hastructure-0.50.4 Cashflow modeling library for structured finance
nightly-2026-01-18 hasty-hamiltonian-1.3.4 Speedy traversal through parameter space
nightly-2026-01-18 HaTeX-3.23.0.1 The Haskell LaTeX library
lts-9.21 hatex-guide-1.3.1.6 HaTeX User's Guide
lts-24.28 haveibeenpwned-0.2.0.3 Library for checking for weak/compromised passwords
nightly-2025-05-05 haxl-2.5.1.1 A Haskell library for efficient, concurrent, and concise data access
lts-10.10 haxl-amazonka-0.1.1 Haxl data source for accessing AWS services through amazonka
nightly-2026-01-18 HaXml-1.25.14 Utilities for manipulating XML documents
nightly-2026-01-18 haxr-3000.11.6 XML-RPC client and server library
lts-6.35 hbayes-0.5.2 Bayesian Networks
lts-14.27 hbeanstalk-0.2.4 Client for the beanstalkd workqueue service
nightly-2026-01-18 Hclip-3.0.0.4 A small cross-platform library for reading and modifying the system clipboard
nightly-2026-01-18 HCodecs-0.5.2 A library to read, write and manipulate MIDI, WAVE, and SoundFont2 files
lts-9.21 hcwiid-0.0.6.1 Library to interface with the wiimote
nightly-2026-01-18 hdaemonize-0.5.7 Library to handle the details of writing daemons for UNIX
lts-24.28 HDBC-2.4.0.4 Haskell Database Connectivity
lts-14.27 HDBC-mysql-0.7.1.0 MySQL driver for HDBC
lts-6.35 HDBC-postgresql-2.3.2.4 PostgreSQL driver for HDBC
lts-24.28 HDBC-session-0.1.2.1 Bracketed connection for HDBC
lts-6.35 HDBC-sqlite3-2.3.3.1 Sqlite v3 driver for HDBC
nightly-2018-09-28 hdevtools-0.1.7.0 Persistent GHC powered background server for FAST haskell development tools
lts-9.21 hdocs-0.5.2.1 Haskell docs tool
nightly-2026-01-18 headed-megaparsec-0.2.1.3 More informative parser
nightly-2026-01-18 headroom-0.4.3.0 License Header Manager
nightly-2026-01-18 heap-1.0.4 Heaps in Haskell
nightly-2026-01-18 heaps-0.4.1 Asymptotically optimal Brodal/Okasaki heaps
nightly-2020-05-10 heart-core-0.3.2 An opinionated library prelude in the UnliftIO style
nightly-2026-01-18 heatshrink-0.1.0.0 Compression and decompression using heatshrink
nightly-2026-01-18 hebrew-time-0.1.2 Hebrew dates and prayer times
nightly-2026-01-18 heck-1.0.0.2 Abstract unit test interface
nightly-2026-01-18 hedgehog-1.7 Release with confidence
lts-24.28 hedgehog-classes-0.2.5.4 Hedgehog will eat your typeclass bugs
nightly-2026-01-18 hedgehog-corpus-0.2.0 hedgehog-corpus
nightly-2026-01-18 hedgehog-fakedata-0.0.1.5 Use 'fakedata' with 'hedgehog'
lts-24.28 hedgehog-fn-1.0 Function generation for `hedgehog`
lts-21.25 hedgehog-optics-1.0.0.3 Hedgehog properties for optics laws
nightly-2026-01-18 hedgehog-quickcheck-0.1.1 Use QuickCheck generators in Hedgehog and vice versa
nightly-2026-01-18 hedis-0.15.2 Client library for the Redis datastore: supports full command set, pipelining
nightly-2026-01-18 hedn-0.3.0.4 EDN parsing and encoding
nightly-2026-01-18 heftia-0.7.0.0 higher-order algebraic effects done right
nightly-2026-01-18 heftia-effects-0.7.0.0 higher-order algebraic effects done right
nightly-2026-01-18 hegg-0.6.0.0 Fast equality saturation in Haskell
nightly-2026-01-18 heist-1.1.1.2 An Haskell template system supporting both HTML5 and XML
nightly-2026-01-18 here-1.2.14 Here docs & interpolated strings via quasiquotation
nightly-2026-01-18 heredoc-0.2.0.0 multi-line string / here document using QuasiQuotes
nightly-2018-09-28 herms-1.9.0.4 A command-line manager for delicious kitchen recipes
nightly-2026-01-18 heterocephalus-1.0.5.7 A type-safe template engine for working with front end development tools
nightly-2026-01-18 hetero-parameter-list-0.1.0.21 hetero list with parameter list
nightly-2026-01-18 hetero-parameter-list-with-typelevel-tools-0.1.0.1 Hetero parameter list with type level tools
lts-24.28 hetzner-0.7.2.1 Hetzner Cloud and DNS library
nightly-2026-01-18 hex-0.2.0 Convert strings into hexadecimal and back
nightly-2026-01-18 hexml-0.3.5 XML subset DOM parser
nightly-2026-01-18 hexml-lens-0.2.2 Lenses for the hexml package
nightly-2026-01-18 hexpat-0.20.13 XML parser/formatter based on expat
lts-17.15 hexstring-0.11.1 Fast and safe representation of a hex string
nightly-2026-01-18 hex-text-0.1.0.9 ByteString-Text hexidecimal conversions
lts-8.24 hflags-0.4.2 Command line flag parser, very similar to Google's gflags
nightly-2026-01-18 hformat-0.3.3.1 Simple Haskell formatting
nightly-2026-01-18 hfsevents-0.1.8 File/folder watching for OS X
nightly-2026-01-18 hgal-2.0.0.3 library for computation automorphism group and canonical labelling of a graph
lts-20.26 hgeometry-0.14 Geometric Algorithms, Data structures, and Data types
lts-20.26 hgeometry-combinatorial-0.14 Data structures, and Data types
lts-5.16 hgettext-0.1.30 Bindings to libintl.h (gettext, bindtextdomain)
lts-13.30 hgmp-0.1.1 Haskell interface to GMP
lts-18.28 hgrev-0.2.6 Compile Mercurial (hg) version info into Haskell code
lts-19.33 hid-0.2.2 Interface to hidapi library
nightly-2026-01-18 hidapi-0.1.8 Haskell bindings to HIDAPI
lts-14.26 hidden-char-0.1.0.2 Provides cross-platform getHiddenChar function
nightly-2026-01-18 hie-bios-0.17.0 Set up a GHC API session
lts-20.26 hierarchical-clustering-0.4.7 Fast algorithms for single, average/UPGMA and complete linkage clustering
lts-12.26 hierarchy-1.0.2 Predicated traversal of generated trees
nightly-2026-01-18 hi-file-parser-0.1.8.0 Parser for GHC's *.hi files
lts-19.33 higher-leveldb-0.6.0.0 A rich monadic API for working with leveldb databases
nightly-2026-01-18 higher-order-freer-monad-0.1.0.0 This package is used by package yaftee
nightly-2026-01-18 higher-order-open-union-0.1.0.1 This package is used by package yaftee
nightly-2022-02-07 highjson-0.5.0.0 Spec based JSON parsing/serialisation
lts-11.22 highjson-swagger-0.4.0.0 Derive swagger instances from highjson specs
lts-11.22 highjson-th-0.4.0.0 Template Haskell helpers for highjson specs
lts-9.21 highlight-1.0.0.1 Command line tool for highlighting parts of files matching a regex
lts-21.25 highlighting-kate-0.6.4 Syntax highlighting
lts-23.28 hindent-6.2.1 Extensible Haskell pretty printer
nightly-2026-01-18 hinfo-0.0.3.0 Command Line App With Info on your Haskell App
nightly-2026-01-18 hinotify-0.4.2 Haskell binding to inotify
nightly-2026-01-18 hint-0.9.0.8 A Haskell interpreter built on top of the GHC API
lts-9.21 hinterface-0.5.0.2 Haskell / Erlang interoperability library
lts-20.26 hip-1.5.6.0 Haskell Image Processing (HIP) Library
nightly-2026-01-18 histogram-fill-0.9.1.0 Library for histograms creation
lts-5.16 hit-0.6.3 Git operations in haskell
lts-8.24 hjpath-3.0.1 XPath-like syntax for querying JSON
nightly-2026-01-18 hjsmin-0.2.1 Haskell implementation of a javascript minifier
lts-8.24 hjson-1.3.2 JSON parsing library
nightly-2022-02-07 hjsonpointer-1.5.0 JSON Pointer library
lts-11.22 hjsonschema-1.7.2 JSON Schema library
nightly-2026-01-18 hkd-default-1.1.0.0 Apply default value for optional field of HKD
nightly-2026-01-18 hkgr-0.5 Simple Hackage release workflow for package maintainers
nightly-2026-01-18 hledger-1.51.2 Command-line interface for the hledger accounting system
nightly-2019-07-10 hledger-api-1.14 Web API server for the hledger accounting tool
nightly-2026-01-18 hledger-iadd-1.3.22 A terminal UI as drop-in replacement for hledger add
nightly-2026-01-18 hledger-interest-1.6.7 computes interest for a given account
nightly-2026-01-18 hledger-lib-1.51.2 A library providing the core functionality of hledger
nightly-2026-01-18 hledger-stockquotes-0.1.3.2 Generate HLedger Price Directives From Daily Stock Quotes
nightly-2026-01-18 hledger-ui-1.51.2 Terminal interface for the hledger accounting system
lts-24.28 hledger-web-1.43.2 Web user interface for the hledger accounting system
nightly-2026-01-18 hlibcpuid-0.2.0 Bindings to https://github.com/anrieff/libcpuid
nightly-2026-01-18 hlibgit2-0.18.0.16 Low-level bindings to libgit2
lts-24.28 hlibsass-0.1.10.3 Low-level bindings to Libsass
nightly-2026-01-18 hlint-3.10 Source code suggestions
lts-6.35 HList-0.4.2.0 Heterogeneous lists
nightly-2026-01-18 hmatrix-0.20.2 Numeric Linear Algebra
nightly-2026-01-18 hmatrix-backprop-0.1.3.0 hmatrix operations lifted for backprop
nightly-2026-01-18 hmatrix-gsl-0.19.0.1 Numerical computation
nightly-2026-01-18 hmatrix-gsl-stats-0.4.1.8 GSL Statistics interface
nightly-2026-01-18 hmatrix-morpheus-0.1.1.2 Low-level machine learning auxiliary functions
lts-24.28 hmatrix-repa-0.1.2.2 Adaptors for interoperability between hmatrix and repa
nightly-2026-01-18 hmatrix-special-0.19.0.0 Interface to GSL special functions
nightly-2026-01-18 hmatrix-vector-sized-0.1.3.0 Conversions between hmatrix and vector-sized types
nightly-2026-01-18 hmm-lapack-0.5.0.1 Hidden Markov Models using LAPACK primitives
lts-23.28 HMock-0.5.1.2 A flexible mock framework for testing effectful code
nightly-2026-01-18 hmpfr-0.4.5 Haskell binding to the MPFR library
lts-8.24 hmt-0.15 Haskell Music Theory
nightly-2020-08-08 hnix-0.9.1 Haskell implementation of the Nix language
nightly-2026-01-18 hnix-store-core-0.8.0.0 Core types used for interacting with the Nix store
lts-20.26 hnock-0.4.0 A Nock interpreter
nightly-2026-01-18 hoare-0.1.1.0 Simple tools for communicating sequential processes
nightly-2026-01-18 hoauth2-2.15.0 Haskell OAuth2 authentication client
lts-19.33 hocilib-0.2.0 FFI binding to OCILIB
nightly-2022-02-19 hocon-0.1.0.4 Small library for typesafe's configuration specification
lts-14.26 Hoed-0.5.1 Lightweight algorithmic debugging
lts-10.10 holy-project-0.2.0.1 Start your Haskell project with cabal, git and tests
nightly-2017-01-17 homplexity-0.4.3.4 Haskell code quality tool
nightly-2026-01-18 honeycomb-0.1.0.1
nightly-2026-01-18 hoogle-5.0.18.4 Haskell API Search
lts-12.26 hoopl-3.10.2.2 A library to support dataflow analysis and optimization
lts-22.10 hOpenPGP-2.9.8 native Haskell implementation of OpenPGP (RFC4880)
lts-18.28 hopenpgp-tools-0.23.6 hOpenPGP-based command-line tools
nightly-2026-01-18 hopenssl-2.2.5 FFI Bindings to OpenSSL's EVP Digest Interface
lts-22.44 hopfli-0.2.2.1 Bidings to Google's Zopfli compression library
nightly-2026-01-18 horizontal-rule-0.7.1.0 horizontal rule for the terminal
nightly-2026-01-18 hosc-0.21.1 Haskell Open Sound Control
nightly-2026-01-18 hostname-1.0 A very simple package providing a cross-platform means of determining the hostname
nightly-2026-01-18 hostname-validate-1.0.0 Validate hostnames e.g. localhost or foo.co.uk
nightly-2026-01-18 hourglass-0.2.12 simple performant time related library
nightly-2026-01-18 hourglass-orphans-0.1.0.0 Orphan Aeson instances to hourglass
nightly-2026-01-18 hp2pretty-0.10.1 generate pretty graphs from heap profiles
nightly-2026-01-18 hpack-0.39.1 A modern format for Haskell packages
lts-7.24 hpack-convert-0.14.7 Convert Cabal manifests into hpack's package.yamls
lts-21.25 hpack-dhall-0.5.7 hpack's dhalling
nightly-2026-01-17 hpc-0.7.0.2 Code Coverage Library for Haskell
nightly-2026-01-18 hpc-codecov-0.6.3.0 Generate reports from hpc data
lts-11.22 hpc-coveralls-1.0.10 Coveralls.io support for Haskell
nightly-2026-01-18 hpc-lcov-1.2.0 Convert HPC output into LCOV format
lts-9.21 hPDB-1.2.0.10 Protein Databank file format library
lts-9.21 hPDB-examples-1.2.0.8 Examples for hPDB library
nightly-2026-01-18 HPDF-1.8 Generation of PDF documents
lts-11.22 hpio-0.9.0.6 Monads for GPIO in Haskell
nightly-2026-01-18 hpke-0.0.0 Hybrid Public Key Encryption
nightly-2026-01-18 hpp-0.6.5 A Haskell pre-processor
nightly-2026-01-18 hpqtypes-1.14.0.0 Haskell bindings to libpqtypes
nightly-2026-01-18 hpqtypes-effectful-1.1.0.0 Adaptation of the hpqtypes library for the effectful ecosystem
nightly-2026-01-18 hpqtypes-extras-1.19.0.0 Extra utilities for hpqtypes library
lts-19.33 hprotoc-2.4.17 Parse Google Protocol Buffer specifications
lts-12.26 hquantlib-0.0.5.0 HQuantLib is a port of essencial parts of QuantLib to Haskell
lts-24.28 hquantlib-time-0.1.2 HQuantLib Time is a business calendar functions extracted from HQuantLib
nightly-2026-01-18 hreader-1.1.1 Generalization of MonadReader and ReaderT using hset
nightly-2026-01-18 hreader-lens-0.1.3.0 Optics for hreader package
nightly-2026-01-18 hruby-0.5.1.0 Embed a Ruby intepreter in your Haskell program !
lts-24.28 hsass-0.8.0 Integrating Sass into Haskell applications
lts-11.22 hsb2hs-0.3.1 Preprocesses a file, adding blobs from files as string literals
nightly-2026-01-18 hs-bibutils-6.10.0.0 Haskell bindings to bibutils, the bibliography conversion utilities
nightly-2026-01-18 hsc2hs-0.68.10 A preprocessor that helps with writing Haskell bindings to C code
nightly-2026-01-18 hs-captcha-1.0 Generate images suitable for use as CAPTCHAs in online web-form security
lts-14.27 hschema-0.0.1.1 Describe schemas for your Haskell data types
lts-14.26 hschema-aeson-0.0.1.1 Describe schemas for your Haskell data types
lts-14.26 hschema-prettyprinter-0.0.1.1 Describe schemas for your Haskell data types
lts-14.26 hschema-quickcheck-0.0.1.1 Describe schemas for your Haskell data types
nightly-2026-01-18 hscolour-1.25 Colourise Haskell code
lts-9.21 hscurses-1.4.2.0 NCurses bindings for Haskell
lts-14.27 hsdev-0.3.2.3 Haskell development library
nightly-2026-01-18 hsdns-1.8 Asynchronous DNS Resolver
lts-18.28 hsebaysdk-0.4.1.0 Haskell eBay SDK
nightly-2026-01-18 hse-cpp-0.2 Preprocess+parse haskell code
nightly-2026-01-18 hsemail-2.2.2 Parsec parsers for the Internet Message format (e-mail)
nightly-2026-01-18 hset-2.2.0 Primitive list with elements of unique types
nightly-2026-01-18 HSet-0.0.2 Faux heterogeneous sets
lts-22.44 hsexif-0.6.1.10 EXIF handling library in pure Haskell
lts-18.28 hs-functors-0.1.7.1 Functors from products of Haskell and its dual to Haskell
nightly-2026-01-18 hs-GeoIP-0.3 Haskell bindings to the MaxMind GeoIPCity database via the C library
nightly-2026-01-18 hsignal-0.2.7.5 Signal processing and EEG data analysis
nightly-2026-01-18 hsini-0.5.2.2 ini configuration files
nightly-2026-01-18 hsinstall-2.10 Install Haskell software
nightly-2026-01-18 HSlippyMap-3.0.1 OpenStreetMap Slippy Map
nightly-2026-01-18 hslogger-1.3.2.0 Versatile logging framework
nightly-2015-12-17 hslogstash-0.4.2 A library to work with, or as, a logstash server
nightly-2026-01-18 hslua-2.4.0 Bindings to Lua, an embeddable scripting language
nightly-2026-01-18 hslua-aeson-2.3.2 Allow aeson data types to be used with Lua
nightly-2026-01-18 hslua-classes-2.3.2 Type classes for HsLua
nightly-2026-01-18 hslua-cli-1.4.4 Command-line interface for Lua
nightly-2026-01-18 hslua-core-2.3.2.1 Bindings to Lua, an embeddable scripting language
nightly-2026-01-18 hslua-list-1.1.4 Opinionated, but extensible Lua list type
nightly-2026-01-18 hslua-marshalling-2.3.2 Marshalling of values between Haskell and Lua
nightly-2026-01-18 hslua-module-doclayout-1.2.0.1 Lua module wrapping Text.DocLayout
nightly-2026-01-18 hslua-module-path-1.1.1 Lua module to work with file paths
nightly-2026-01-18 hslua-module-system-1.2.3 Lua module wrapper around Haskell's System module
nightly-2026-01-18 hslua-module-text-1.1.1 Lua module for text
nightly-2026-01-18 hslua-module-version-1.1.1 Lua module to work with version specifiers
nightly-2026-01-18 hslua-module-zip-1.1.4 Lua module to work with file zips
nightly-2026-01-18 hslua-objectorientation-2.4.0 Object orientation tools for HsLua
nightly-2026-01-18 hslua-packaging-2.3.2 Utilities to build Lua modules
nightly-2026-01-18 hslua-repl-0.1.2 Isocline-based Lua REPL
nightly-2026-01-18 hslua-typing-0.1.1 Type specifiers for Lua
nightly-2026-01-18 hsndfile-0.8.0 Haskell bindings for libsndfile
nightly-2026-01-18 hsndfile-vector-0.5.2 Haskell bindings for libsndfile (Data.Vector interface)
nightly-2026-01-18 HsOpenSSL-0.11.7.9 Partial OpenSSL binding for Haskell
nightly-2026-01-18 HsOpenSSL-x509-system-0.1.0.4 Use the system's native CA certificate store with HsOpenSSL
nightly-2026-01-18 hs-opentelemetry-api-0.3.0.0 OpenTelemetry API for use by libraries for direct instrumentation or wrapper packages
nightly-2026-01-18 hs-opentelemetry-propagator-b3-0.0.1.3 Trace propagation via HTTP headers following the b3 tracestate spec
nightly-2026-01-18 hs-opentelemetry-propagator-datadog-0.0.1.1 Datadog Propagator for OpenTelemetry
nightly-2026-01-18 hs-opentelemetry-propagator-w3c-0.1.0.0 Trace propagation via HTTP headers following the w3c tracestate spec
nightly-2026-01-18 hs-opentelemetry-vendor-honeycomb-0.0.1.2 Optional OpenTelemetry integration for Honeycomb
lts-21.25 hsp-0.10.0 Haskell Server Pages is a library for writing dynamic server-side web pages
nightly-2026-01-18 hspec-2.11.16 A Testing Framework for Haskell
lts-1.15 hspec2-0.6.1 Alpha version of Hspec 2.0
nightly-2026-01-18 hspec-api-2.11.16 A Testing Framework for Haskell
nightly-2026-01-18 hspec-attoparsec-0.1.0.2 Utility functions for testing your attoparsec parsers with hspec
nightly-2026-01-18 hspec-checkers-0.1.0.2 Allows to use checkers properties from hspec
nightly-2026-01-18 hspec-contrib-0.5.2 Contributed functionality for Hspec
nightly-2026-01-18 hspec-core-2.11.16 A Testing Framework for Haskell
nightly-2026-01-18 hspec-discover-2.11.16 Automatically discover and run Hspec tests
nightly-2026-01-18 hspec-expectations-0.8.4 Catchy combinators for HUnit
nightly-2026-01-18 hspec-expectations-json-1.0.2.1 Hspec expectations for JSON Values
nightly-2026-01-18 hspec-expectations-lifted-0.10.0 A version of hspec-expectations generalized to MonadIO
nightly-2026-01-18 hspec-expectations-pretty-diff-0.7.2.6 Catchy combinators for HUnit
nightly-2026-01-18 hspec-golden-0.2.2.0 Golden tests for hspec
nightly-2026-01-18 hspec-golden-aeson-0.9.0.0 Use tests to monitor changes in Aeson serialization
nightly-2026-01-18 hspec-hedgehog-0.3.0.0 Integrate Hedgehog and Hspec!
lts-6.35 hspec-jenkins-0.1.1 Jenkins-friendly XML formatter for Hspec
nightly-2026-01-18 hspec-junit-formatter-1.1.2.1 A JUnit XML runner/formatter for hspec
nightly-2026-01-18 hspec-leancheck-0.0.6 LeanCheck support for the Hspec test framework
nightly-2026-01-18 hspec-megaparsec-2.2.1 Utility functions for testing Megaparsec parsers with Hspec
nightly-2026-01-18 hspec-meta-2.11.16 A version of Hspec which is used to test Hspec itself
nightly-2026-01-18 hspec-need-env-0.1.0.13 Read environment variables for hspec tests
nightly-2026-01-18 hspec-parsec-0 Hspec expectations for testing Parsec parsers
lts-14.27 hspec-pg-transact-0.1.0.2 Helpers for creating database tests with hspec and pg-transact
lts-9.21 hspec-setup-0.2.1.0 Add an hspec test-suite in one command
nightly-2026-01-18 hspec-smallcheck-0.5.3 SmallCheck support for the Hspec testing framework
lts-6.35 hspec-snap-0.4.0.1 A library for testing with Hspec and the Snap Web Framework
lts-18.28 hspec-tables-0.0.1 Table-driven (by-example) HSpec tests
nightly-2026-01-18 hspec-tmp-proc-0.7.0.0 Simplify use of tmp-proc from hspec tests
nightly-2026-01-18 hspec-wai-0.11.1 Experimental Hspec support for testing WAI applications
nightly-2026-01-18 hspec-wai-json-0.11.0 Testing JSON APIs with hspec-wai
lts-24.28 hspec-webdriver-1.2.2 Write end2end web application tests using webdriver and hspec
nightly-2026-01-18 hs-php-session-0.0.9.3 PHP session and values serialization
lts-20.26 hsshellscript-3.5.0 Haskell for Unix shell scripting tasks
lts-6.35 HsSyck-0.53 Fast, lightweight YAML loader and dumper
lts-19.33 hs-tags-0.1.5.3 Create tag files (ctags and etags) for Haskell code
nightly-2026-01-18 hstatistics-0.3.1 Statistics
lts-14.26 hstatsd-0.1 Quick and dirty statsd interface
nightly-2026-01-18 HStringTemplate-0.8.8 StringTemplate implementation in Haskell
nightly-2026-01-18 HSvm-1.0.3.35 Haskell Bindings for libsvm
lts-21.25 hsx2hs-0.14.1.11 HSX (Haskell Source with XML) allows literal XML syntax in Haskell source code
lts-21.25 hsx-jmacro-7.3.8.2 hsp+jmacro support
nightly-2026-01-18 HsYAML-0.2.1.5 Pure Haskell YAML 1.2 processor
nightly-2026-01-18 HsYAML-aeson-0.2.0.2 JSON to YAML Adapter
nightly-2026-01-18 hsyslog-5.0.2 FFI interface to syslog(3) from POSIX.1-2001
lts-19.33 hsyslog-udp-0.2.5 Log to syslog over a network via UDP
nightly-2019-05-21 hs-zstd-0.1.1.1 Haskell bindings to the Zstandard compression algorithm
nightly-2026-01-18 htaglib-1.2.1 Bindings to TagLib, audio meta-data library
nightly-2026-01-18 HTF-0.15.0.2 The Haskell Test Framework
nightly-2026-01-18 html-1.0.1.2 HTML combinator library
nightly-2026-01-18 html-conduit-1.3.2.2 Parse HTML documents using xml-conduit datatypes
nightly-2026-01-18 html-email-validate-0.2.0.0 Validating an email address against HTML standard
nightly-2026-01-18 html-entities-1.1.4.7 A codec library for HTML-escaped text and HTML-entities
nightly-2026-01-18 html-entity-map-0.1.0.0 Map from HTML5 entity names to the corresponding Unicode text
nightly-2026-01-18 html-parse-0.2.2.0 A high-performance HTML tokenizer
lts-18.28 htoml-1.0.0.3 Parser for TOML files
lts-21.25 htoml-megaparsec-2.1.0.4 Parser for TOML files
lts-21.25 htoml-parse-0.1.0.1 Parse TOML values produced by htoml-megaparsec package
nightly-2026-01-18 HTTP-4000.5.0 A library for client-side HTTP
nightly-2026-01-18 http2-5.4.0 HTTP/2 library
nightly-2026-01-18 http3-0.1.2 HTTP/3 library
lts-6.35 http-accept-0.2 Functions for working with HTTP Accept headers
nightly-2026-01-18 http-api-data-0.6.3 Converting to/from HTTP API data like URL pieces, headers and query parameters
nightly-2026-01-18 http-api-data-qq-0.1.0.1 Quasiquoter for building URLs with ToHttpApiData types
nightly-2026-01-18 http-client-0.7.19 An HTTP client engine
nightly-2026-01-18 http-client-openssl-0.3.3 http-client backend using the OpenSSL library
nightly-2026-01-18 http-client-overrides-0.1.1.0 HTTP client overrides
nightly-2026-01-18 http-client-restricted-0.1.0 restricting the servers that http-client will use
nightly-2026-01-18 http-client-tls-0.3.6.4 http-client backend using the connection package and tls library
nightly-2026-01-18 http-common-0.8.3.4 Common types for HTTP clients and servers
nightly-2026-01-18 http-conduit-2.3.9.1 HTTP client package with conduit interface and HTTPS support
nightly-2026-01-18 http-date-0.0.11 HTTP Date parser/formatter
nightly-2026-01-18 http-directory-0.1.12 http directory listing library
nightly-2026-01-18 http-download-0.2.1.0 Verified downloads with retries
nightly-2026-01-18 httpd-shed-0.4.1.2 A simple web-server with an interact style API
nightly-2026-01-18 http-io-streams-0.1.7.2 HTTP and WebSocket client based on io-streams
nightly-2026-01-18 http-link-header-1.2.3 HTTP Link header parser/writer
nightly-2026-01-18 http-media-0.8.1.1 Processing HTTP Content-Type and Accept headers
nightly-2026-01-18 http-query-0.1.3 Simple http queries
nightly-2026-01-18 http-reverse-proxy-0.6.2.0 Reverse proxy HTTP requests, either over raw sockets or with WAI
nightly-2026-01-18 http-semantics-0.4.0 HTTP semantics library
nightly-2026-01-18 http-streams-0.8.9.9 An HTTP client using io-streams
nightly-2026-01-18 http-types-0.12.4 Generic HTTP types for Haskell (for both client and server code)
nightly-2026-01-18 human-readable-duration-0.2.1.4 Provide duration helper
nightly-2026-01-18 HUnit-1.6.2.0 A unit testing framework for Haskell
nightly-2026-01-18 HUnit-approx-1.1.1.1 Approximate equality for floating point numbers with HUnit
nightly-2026-01-18 hunit-dejafu-2.0.0.6 Deja Fu support for the HUnit test framework
nightly-2026-01-18 hvect-0.4.0.1 Simple strict heterogeneous lists
nightly-2026-01-18 hvega-0.12.0.7 Create Vega-Lite visualizations (version 4) in Haskell
lts-21.25 hw-balancedparens-0.4.1.3 Balanced parentheses
nightly-2026-01-18 hw-bits-0.7.2.2 Bit manipulation
lts-22.44 hw-conduit-0.2.1.1 Conduits for tokenizing streams
nightly-2026-01-18 hw-conduit-merges-0.2.1.0 Additional merges and joins for Conduit
nightly-2026-01-18 hw-diagnostics-0.0.1.0 Diagnostics library
lts-20.26 hw-dsv-0.4.1.1 Unbelievably fast streaming DSV file parser
nightly-2026-01-18 hweblib-0.6.3 Haskell Web Library
lts-21.25 hw-eliasfano-0.1.2.1 Elias-Fano
nightly-2026-01-18 hw-excess-0.2.3.0 Excess
lts-22.44 hw-fingertree-0.1.2.1 Generic finger-tree structure, with example instances
lts-22.44 hw-fingertree-strict-0.1.2.1 Generic strict finger-tree structure
nightly-2026-01-18 hw-hedgehog-0.1.1.1 Extra hedgehog functionality
lts-22.44 hw-hspec-hedgehog-0.1.1.1 Interoperability between hspec and hedgehog
nightly-2026-01-18 hw-int-0.0.2.0 Additional facilities for Integers
lts-21.25 hw-ip-2.4.2.1 Library for manipulating IP addresses and CIDR blocks
lts-20.26 hw-json-1.3.2.4 Memory efficient JSON parser
lts-23.28 hw-json-simd-0.1.1.3 SIMD-based JSON semi-indexer
lts-21.25 hw-json-simple-cursor-0.1.1.1 Memory efficient JSON parser
lts-21.25 hw-json-standard-cursor-0.2.3.2 Memory efficient JSON parser
nightly-2026-01-18 hwk-0.6 Commandline text processing with Haskell functions
nightly-2026-01-18 hw-kafka-client-5.3.0 Kafka bindings for Haskell
nightly-2026-01-18 hw-mquery-0.2.1.2 Monadic query DSL
lts-22.44 hworker-0.1.0.1 A reliable at-least-once job queue built on top of redis
lts-6.35 hworker-ses-0.1.1.0 Library for sending email with Amazon's SES and hworker
lts-21.25 hw-packed-vector-0.2.1.1 Packed Vector
nightly-2026-01-18 hw-parser-0.1.1.0 Simple parser support
nightly-2026-01-18 hw-prim-0.6.3.2 Primitive functions and data types
lts-21.25 hw-rankselect-0.13.4.1 Rank-select
nightly-2026-01-18 hw-rankselect-base-0.3.4.1 Rank-select base
lts-21.25 hw-simd-0.1.2.2 SIMD library
lts-23.28 hw-streams-0.0.1.1 Primitive functions and data types
nightly-2026-01-18 hw-string-parse-0.0.0.5 String parser
lts-21.25 hw-succinct-0.1.0.1 Succint datastructures
lts-20.26 hw-xml-0.5.1.1 XML parser based on succinct data structures
nightly-2026-01-18 hxt-9.3.1.22 A collection of tools for processing XML with Haskell
nightly-2026-01-18 hxt-charproperties-9.5.0.0 Character properties and classes for XML and Unicode
nightly-2026-01-18 hxt-css-0.1.0.3 CSS selectors for HXT
nightly-2026-01-18 hxt-curl-9.1.1.1 LibCurl interface for HXT
nightly-2026-01-18 hxt-expat-9.1.1 Expat parser for HXT
nightly-2026-01-18 hxt-http-9.1.5.2 Interface to native Haskell HTTP package HTTP
lts-12.26 hxt-pickle-utils-0.1.0.3 Utility functions for using HXT picklers
nightly-2026-01-18 hxt-regex-xmlschema-9.2.0.7 A regular expression library for W3C XML Schema regular expressions
lts-6.35 hxt-relaxng-9.1.5.5 The HXT RelaxNG validator
nightly-2026-01-18 hxt-tagsoup-9.1.4 TagSoup parser for HXT
nightly-2026-01-18 hxt-unicode-9.0.2.4 Unicode en-/decoding functions for utf8, iso-latin-* and other encodings
nightly-2026-01-18 hxt-xpath-9.1.2.2 The XPath modules for HXT
nightly-2026-01-18 hybrid-vectors-0.2.5 Hybrid vectors e.g. Mixed Boxed/Unboxed vectors
nightly-2026-01-18 hyper-0.2.1.2 Display class for the HyperHaskell graphical Haskell interpreter
nightly-2026-01-18 hyperbole-0.6.0 Interactive HTML apps using type-safe serverside Haskell
nightly-2026-01-18 hyperloglog-0.5 An approximate streaming (constant space) unique object counter
nightly-2026-01-18 hyphenation-0.8.3 Configurable Knuth-Liang hyphenation
lts-22.44 hyraxAbif-0.2.4.5 Modules for parsing, generating and manipulating AB1 files
lts-6.35 hzulip-1.1.1.3 A haskell wrapper for the Zulip API
lts-5.16 ical-0.0.1 iCalendar format parser and org-mode converter
nightly-2026-01-18 iconv-0.4.1.3 String encoding conversion
lts-6.35 ide-backend-0.10.0.1 An IDE backend library
lts-6.35 ide-backend-common-0.10.1.2 Shared library used be ide-backend and ide-backend-server
lts-6.35 ide-backend-rts-0.1.3.1 RTS for the IDE backend
lts-6.35 ide-backend-server-0.10.0.2 An IDE backend server
nightly-2026-01-18 identicon-0.2.3 Flexible generation of identicons
nightly-2026-01-18 idn-0.1.2.0 Pure Haskell IDN and Punycode implementation
lts-2.22 idna-0.3.0 Implements IDNA (RFC 3490)
lts-16.31 idris-1.3.3 Functional Programming Language with Dependent Types
nightly-2026-01-18 ieee754-0.8.0 Utilities for dealing with IEEE floating point numbers
nightly-2026-01-18 if-0.1.0.0 (?) and (?>) conditional operator
nightly-2026-01-18 IfElse-0.85 Anaphoric and miscellaneous useful control-flow
nightly-2026-01-18 iff-0.0.6.1 Constructing and dissecting IFF files
lts-6.35 ig-0.7 Bindings to Instagram's API
lts-11.22 ignore-0.1.1.0 Handle ignore files of different VCSes
nightly-2026-01-18 ihaskell-0.13.0.0 A Haskell backend kernel for the Jupyter project
lts-6.35 ihaskell-aeson-0.3.0.0 IHaskell display instances for Aeson
lts-6.35 ihaskell-basic-0.3.0.0 IHaskell display instances for basic types
lts-6.35 ihaskell-blaze-0.3.0.0 IHaskell display instances for blaze-html types
lts-6.35 ihaskell-charts-0.3.0.0 IHaskell display instances for charts types
lts-6.35 ihaskell-diagrams-0.3.1.0 IHaskell display instances for diagram types
lts-6.35 ihaskell-hatex-0.2.1.0 IHaskell display instances for hatex
nightly-2026-01-18 ihaskell-hvega-0.5.0.7 IHaskell display instance for hvega types
lts-6.35 ihaskell-inline-r-0.1.1.0 Embed R quasiquotes and plots in IHaskell notebooks
lts-6.35 ihaskell-juicypixels-0.3.0.0 IHaskell - IHaskellDisplay instances of the image types of the JuicyPixels package
lts-6.35 ihaskell-magic-0.3.0.0 IHaskell display instances for bytestrings
lts-6.35 ihaskell-rlangqq-0.3.0.0 a rDisp quasiquote to show plots from Rlang-QQ in IHaskell
nightly-2026-01-18 ihs-0.1.0.3 Interpolated Haskell
lts-23.28 ilist-0.4.0.1 Optimised list functions for doing index-related things
nightly-2026-01-18 imagesize-conduit-1.1 Determine the size of some common image formats
nightly-2026-01-18 Imlib-0.1.2
lts-9.21 imm-1.2.0.0 Execute arbitrary actions for each unread element of RSS/Atom feeds
nightly-2026-01-18 immortal-0.3 Spawn threads that never die (unless told to do so)
nightly-2026-01-18 immortal-queue-0.2.0.0 Build a pool of queue-processing worker threads
nightly-2026-01-18 imp-1.0.3.5 A GHC plugin for automatically importing modules
lts-10.10 importify-1.0.1 Tool for haskell imports refactoring
lts-11.22 imprint-0.0.1.0 Serialization of arbitrary Haskell expressions
nightly-2026-01-18 ImpSpec-0.2.0.0 Imperative approach to testing stateful applications. ImpSpec is built on top of HSpec and QuickCheck
nightly-2026-01-18 inbox-0.2.0 Inbox for asychronous messages
nightly-2026-01-18 incipit-base-0.6.1.1 A Prelude for Polysemy – Base Reexports
nightly-2026-01-18 incipit-core-0.6.1.1 A Prelude for Polysemy
nightly-2026-01-18 include-file-0.1.0.4 Inclusion of files in executables at compile-time
nightly-2026-01-18 incremental-0.3.1 incremental update library
nightly-2026-01-18 incremental-parser-0.5.1 Generic parser library capable of providing partial results from partial input
nightly-2016-02-29 indentation-0.2.1.1 Indentation sensitive parsing combinators for Parsec and Trifecta
lts-14.27 indentation-core-0.0.0.2 Indentation sensitive parsing combinators core library
lts-14.27 indentation-parsec-0.0.0.2 Indentation sensitive parsing combinators for Parsec
nightly-2026-01-18 indents-0.5.0.1 indentation sensitive parser-combinators for parsec
nightly-2026-01-18 indexed-0.1.3 Haskell98 indexed functors, monads, comonads
nightly-2026-01-18 indexed-containers-0.1.0.2 Simple, no-frills indexed lists
nightly-2026-01-18 indexed-list-literals-0.2.1.3 Type safe indexed list literals
nightly-2026-01-18 indexed-profunctors-0.1.1.1 Utilities for indexed profunctors
nightly-2026-01-18 indexed-transformers-0.1.0.4 Atkey indexed monad transformers
nightly-2026-01-18 indexed-traversable-0.1.4 FunctorWithIndex, FoldableWithIndex, TraversableWithIndex
nightly-2026-01-18 indexed-traversable-instances-0.1.2 More instances of FunctorWithIndex, FoldableWithIndex, TraversableWithIndex
nightly-2026-01-18 inf-backprop-0.2.0.2 Automatic differentiation and backpropagation
nightly-2026-01-18 infer-license-0.2.0 Infer software license from a given license file
nightly-2026-01-18 infinite-list-0.1.3 Infinite lists
lts-22.44 inflections-0.4.0.7 Inflections library for Haskell
lts-24.28 influxdb-1.9.3.2 InfluxDB client library for Haskell
nightly-2026-01-18 ini-0.5.1 Configuration files in the INI format
nightly-2026-01-18 inj-1.0 A class for injective (one-to-one) functions
nightly-2026-01-18 inline-c-0.9.1.10 Write Haskell source files including C code inline. No FFI required
nightly-2026-01-18 inline-c-cpp-0.5.0.2 Lets you embed C++ code into Haskell
lts-12.26 inline-java-0.8.4 Java interop via inline Java code in Haskell modules
lts-22.44 inline-r-1.0.1 Seamlessly call R from Haskell and vice versa. No FFI required
lts-20.26 inliterate-0.1.0 Interactive literate programming
nightly-2026-01-18 input-parsers-0.3.0.2 Extension of the parsers library with more capability and efficiency
nightly-2026-01-18 insert-ordered-containers-0.2.7 Associative containers retaining insertion order for traversals
nightly-2026-01-18 inspection-testing-0.6.3 GHC plugin to do inspection testing
lts-21.25 instance-control-0.1.2.0 Controls how the compiler searches for instances using type families
nightly-2026-01-18 int-cast-0.2.0.0 Checked conversions between integral types
nightly-2026-01-18 integer-conversion-0.1.1 Conversion from strings to Integer
nightly-2026-01-17 integer-gmp-1.1 Integer library based on GMP
nightly-2026-01-18 integer-logarithms-1.0.5 Integer logarithms
nightly-2026-01-18 integer-roots-1.0.4.0 Integer roots and perfect powers
lts-23.28 integer-types-0.1.4.1 Integer, Natural, and Positive
nightly-2026-01-18 integration-0.2.1 Fast robust numeric integration via tanh-sinh quadrature
nightly-2026-01-18 intermediate-structures-0.1.2.0 Some simple functions to deal with transformations from structures to other ones, basically lists
nightly-2026-01-18 intern-0.9.6 Efficient hash-consing for arbitrary data types
lts-9.21 intero-0.1.24 Complete interactive development program for Haskell
nightly-2026-01-18 interpolate-0.2.1 String interpolation done right
nightly-2026-01-18 interpolatedstring-perl6-1.0.2 QuasiQuoter for Perl6-style multi-line interpolated strings
lts-14.27 interpolatedstring-qq2-0.1.0.0 QuasiQuoter for multi-line interpolated strings
nightly-2026-01-18 interpolation-0.1.1.2 piecewise linear and cubic Hermite interpolation
nightly-2026-01-18 Interpolation-0.3.0 Multiline strings, interpolation and templating
lts-18.28 interpolator-1.1.0.2 Runtime interpolation of environment variables in records using profunctors
nightly-2026-01-18 IntervalMap-0.6.2.1 Containers for intervals, with efficient search
nightly-2026-01-18 intervals-0.9.3 Interval Arithmetic
lts-19.33 intro-0.9.0.0 Safe and minimal prelude
nightly-2026-01-18 intset-imperative-0.1.0.0 An imperative integer set written in Haskell
nightly-2026-01-18 int-supply-1.0.0 A simple, efficient supply of integers using atomic fetch-and-add
nightly-2026-01-18 invariant-0.6.5 Haskell98 invariant functors
lts-22.44 invert-1.0.0.5 Automatically generate a function’s inverse
nightly-2026-01-18 invertible-0.2.0.8 bidirectional arrows, bijective functions, and invariant functors
nightly-2026-01-18 invertible-grammar-0.1.3.5 Invertible parsing combinators framework
lts-14.26 io-choice-0.0.7 Choice for IO and lifted IO
lts-24.28 io-embed-0.1.0.1 Use Template Haskell to embed the result of an IO computation
nightly-2026-01-18 io-machine-0.2.0.0 Easy I/O model to learn IO monad
nightly-2026-01-18 io-manager-0.1.0.4 Skeleton library around the IO monad
nightly-2026-01-18 io-memoize-1.1.1.0 Memoize IO actions
nightly-2026-01-18 io-region-0.1.1 Exception safe resource management with dynamic regions
lts-3.22 IOSpec-0.3 A pure specification of the IO monad
nightly-2026-01-18 io-storage-0.3 A key-value store in the IO monad
nightly-2026-01-18 io-streams-1.5.2.2 Simple, composable, and easy-to-use stream I/O
nightly-2026-01-18 io-streams-haproxy-1.0.1.0 HAProxy protocol 1.5 support for io-streams
nightly-2026-01-18 ip-1.7.8 Library for IP and MAC addresses
nightly-2026-01-18 ip6addr-2.0.0.1 Commandline tool to deal with IPv6 address text representations
lts-18.28 ipa-0.3.1.1 Internal Phonetic Alphabet (IPA)
nightly-2026-01-18 iproute-1.7.15 IP Routing Table
nightly-2026-01-18 IPv6Addr-2.0.6.2 Library to deal with IPv6 address text representations
nightly-2026-01-18 IPv6DB-0.3.3.4 A RESTful microService for IPv6-related data
nightly-2026-01-18 ipynb-0.2 Data structure for working with Jupyter notebooks (ipynb)
nightly-2026-01-18 ipython-kernel-0.12.1.0 A library for creating kernels for IPython frontends
nightly-2026-01-18 irc-0.6.1.1 A small library for parsing IRC messages
lts-19.33 irc-client-1.1.2.2 An IRC client library
lts-19.33 irc-conduit-0.3.0.5 Streaming IRC message library using conduits
nightly-2026-01-18 irc-ctcp-0.1.3.1 A CTCP encoding and decoding library for IRC clients
lts-12.26 irc-dcc-2.0.1 A DCC message parsing and helper library for IRC clients
nightly-2026-01-18 iri-0.5.1.2 RFC-compliant universal resource identifier library (URL, URI, IRI)
nightly-2026-01-18 isbn-1.1.0.5 ISBN Validation and Manipulation
nightly-2026-01-18 islink-0.1.0.0 Check if an HTML element is a link
nightly-2026-01-18 iso3166-country-codes-0.20140203.8 A datatype for ISO 3166 country codes
nightly-2026-01-18 iso639-0.1.0.3 ISO-639-1 language codes
nightly-2026-01-18 iso8601-time-0.1.5 Convert to/from the ISO 8601 time format
nightly-2026-01-18 isocline-1.0.9 A portable alternative to GNU Readline
nightly-2026-01-18 isomorphism-class-0.3.1.4 Isomorphism typeclass as a lawful solution to the conversion problem
lts-9.21 isotope-0.5.0.1 Isotopic masses and relative abundances
lts-21.25 iterable-3.0 API for hierarchical multilevel collections
lts-17.15 it-has-0.2.0.0 Automatically derivable Has instances
lts-20.26 ixset-1.1.1.2 Efficient relational queries on Haskell sets
lts-22.44 ixset-typed-0.5.1.0 Efficient relational queries on Haskell sets
lts-22.44 ixset-typed-binary-instance-0.1.0.2 Binary instance for ixset-typed
lts-20.26 ixset-typed-conversions-0.1.2.0 Conversions from ixset-typed to other containers
lts-22.44 ixset-typed-hashable-instance-0.1.0.2 Hashable instance for ixset-typed
nightly-2026-01-18 ix-shapable-0.1.0 Reshape multi-dimensional arrays
nightly-2026-01-18 jack-0.7.2.2 Bindings for the JACK Audio Connection Kit
nightly-2026-01-18 jailbreak-cabal-1.4.1 Strip version restrictions from Cabal files
nightly-2026-01-18 jalaali-1.0.0.0 Jalaali calendar systems
nightly-2026-01-18 java-adt-1.1 Create immutable algebraic data structures for Java
nightly-2022-02-07 javascript-extras-0.5.0.0 Extra javascript functions when using GHCJS
nightly-2026-01-18 jira-wiki-markup-1.5.1 Handle Jira wiki markup
lts-21.25 jl-0.1.0 Functional sed for JSON
nightly-2026-01-18 jmacro-0.6.18 QuasiQuotation library for programmatic generation of Javascript code
nightly-2022-02-07 jmacro-rpc-0.3.3 JSON-RPC clients and servers using JMacro, and evented client-server Reactive Programming
nightly-2022-02-07 jmacro-rpc-happstack-0.3.2 Happstack backend for jmacro-rpc
nightly-2021-10-25 jmacro-rpc-snap-0.3 Snap backend for jmacro-rpc
lts-12.26 jni-0.6.1 Complete JNI raw bindings
nightly-2026-01-18 jose-0.11 JSON Object Signing and Encryption (JOSE) and JSON Web Token (JWT) library
nightly-2026-01-18 jose-jwt-0.10.0 JSON Object Signing and Encryption Library
lts-24.28 journalctl-stream-0.6.0.8 Stream logs using journalctl
nightly-2026-01-18 jsaddle-0.9.9.3 Interface for JavaScript that works with GHCJS and GHC
nightly-2026-01-18 jsaddle-dom-0.9.9.2 DOM library that uses jsaddle to support both GHCJS and GHC
nightly-2026-01-18 jsaddle-warp-0.9.9.5 Interface for JavaScript that works with GHCJS and GHC
nightly-2026-01-18 js-chart-2.9.4.1 Obtain minified chart.js code
nightly-2026-01-18 js-dgtable-0.5.2 Obtain minified jquery.dgtable code
nightly-2026-01-18 js-flot-0.8.3 Obtain minified flot code
nightly-2026-01-18 js-jquery-3.7.1 Obtain minified jQuery code
nightly-2026-01-18 json-0.11 Support for serialising Haskell to and from JSON
lts-16.31 json-alt-1.0.0 Union 'alternative' or Either that has untagged JSON encoding
lts-8.24 json-ast-0.3.1 Universal JSON AST datastructure
lts-14.27 json-autotype-3.0.1 Automatic type declaration for JSON input data
lts-11.22 json-builder-0.3 Data structure agnostic JSON serialization
nightly-2026-01-18 json-feed-2.0.0.18 JSON Feed
nightly-2026-01-18 jsonifier-0.2.1.3 Fast and simple JSON encoding toolkit
nightly-2026-01-18 jsonpath-0.3.0.0 Library to parse and execute JSONPath
nightly-2026-01-18 json-rpc-1.1.2 Fully-featured JSON-RPC 2.0 library
lts-14.27 json-rpc-client-0.2.5.0 JSON-RPC 2.0 on the client side
lts-18.28 json-rpc-generic-0.2.1.6 Generic encoder and decode for JSON-RPC
lts-14.26 json-rpc-server-0.2.6.0 JSON-RPC 2.0 on the server side
lts-12.26 json-schema-0.7.4.2 Types and type classes for defining JSON schemas
nightly-2026-01-18 json-spec-1.1.1.2 Type-level JSON specification
nightly-2026-01-18 json-spec-elm-0.4.0.6 Elm code generate for `json-spec`
nightly-2026-01-18 json-spec-elm-servant-0.4.4.1 Generated elm code for servant APIs
lts-24.28 json-spec-openapi-1.0.1.3 json-spec-openapi
nightly-2026-01-18 json-stream-0.4.6.0 Incremental applicative JSON parser
nightly-2026-01-18 JuicyCairo-0.1.0.1 To use images of JuicyPixels from Cairo
nightly-2026-01-18 JuicyPixels-3.3.9 Picture loading/serialization (in png, jpeg, bitmap, gif, tga, tiff and radiance)
lts-12.26 JuicyPixels-blp-0.1.1.0 BLP format decoder/encoder over JuicyPixels library
lts-19.33 JuicyPixels-blurhash-0.1.0.3 Blurhash is a very compact represenation of a placeholder for an image
nightly-2026-01-18 JuicyPixels-extra-0.6.0 Efficiently scale, crop, flip images with JuicyPixels
lts-6.35 JuicyPixels-repa-0.7.1.0 Convenience functions to obtain array representations of images
lts-23.28 JuicyPixels-scale-dct-0.1.2 Scale JuicyPixels images with DCT
lts-6.35 JuicyPixels-util-0.2 Convert JuicyPixel images into RGBA format, flip, trim and so on
nightly-2026-01-18 junit-xml-0.1.0.4 Producing JUnit-style XML test reports
nightly-2026-01-18 justified-containers-0.3.0.0 Keyed container types with type-checked proofs of key presence
lts-12.26 jvm-0.4.2 Call JVM methods from Haskell
lts-12.26 jvm-batching-0.1.1 Provides batched marshalling of values between Java and Haskell
lts-12.26 jvm-streaming-0.3.1 Expose Java iterators as streams from the streaming package
lts-22.44 jwt-0.11.0 JSON Web Token (JWT) decoding and encoding
nightly-2026-01-18 kan-extensions-5.2.8 Kan extensions, Kan lifts, the Yoneda lemma, and (co)density (co)monads
lts-20.26 kanji-3.5.0 Perform 漢字検定 (Japan Kanji Aptitude Test) level analysis on Japanese Kanji
nightly-2026-01-18 kansas-comet-0.4.4 A JavaScript push mechanism based on the comet idiom
nightly-2026-01-18 katip-0.8.8.4 A structured logging framework
lts-10.10 katip-elasticsearch-0.4.1.0 ElasticSearch scribe for the Katip logging framework
nightly-2026-01-18 katip-logstash-0.1.0.2 Logstash backend for katip
nightly-2018-03-10 katip-rollbar-0.3.0.1 Katip scribe that logs to Rollbar
nightly-2018-05-10 katip-scalyr-scribe-0.1.0.1 A katip scribe for logging to json
nightly-2026-01-18 katip-wai-0.2.0.1 WAI middleware for logging request and response info through katip
nightly-2018-05-13 katydid-0.3.0.1 A haskell implementation of Katydid
lts-18.28 kawhi-0.3.0 stats.NBA.com library
nightly-2026-01-18 kazura-queue-0.1.0.4 Fast concurrent queues much inspired by unagi-chan
nightly-2026-01-18 kdl-hs-0.2.1 KDL language parser and API
nightly-2026-01-18 kdt-0.2.6 Fast and flexible k-d trees for various types of point queries
nightly-2026-01-18 keep-alive-0.2.1.0 TCP keep alive implementation
nightly-2026-01-18 keter-2.3.0 Web application deployment manager, focusing on Haskell web frameworks. It mitigates downtime
nightly-2026-01-18 keter-rate-limiting-plugin-0.2.0.2 Simple Keter rate limiting plugin
nightly-2026-01-18 keuringsdienst-1.2.0.0 Data validation in Haskell: composable, easy and clean.
nightly-2026-01-18 keycode-0.2.4 Maps web browser keycodes to their corresponding keyboard keys
nightly-2026-01-18 keyed-vals-0.2.3.4 An abstract Handle for accessing collections in stores like Redis
nightly-2026-01-18 keyed-vals-hspec-tests-0.2.3.4 Validate a keyed-vals Handle
nightly-2026-01-18 keyed-vals-mem-0.2.3.4 Implements a keyed-vals Handle using in-process memory
nightly-2026-01-18 keyed-vals-redis-0.2.3.4 Access Redis using a keyed-vals Handle
nightly-2026-01-18 keys-3.12.5 Keyed functors and containers
nightly-2026-01-18 ki-1.0.1.2 A lightweight structured concurrency library
nightly-2026-01-18 kind-apply-0.4.0.1 Utilities to work with lists of types
nightly-2026-01-18 kind-generics-0.5.0.0 Generic programming in GHC style for arbitrary kinds and GADTs
nightly-2026-01-18 kind-generics-th-0.2.3.3 Template Haskell support for generating `GenericK` instances
nightly-2026-01-18 ki-unlifted-1.0.0.2 A lightweight structured concurrency library
lts-22.44 kleene-0.1 Kleene algebra
nightly-2026-01-18 kmeans-0.1.3 K-means clustering algorithm
nightly-2026-01-18 knob-0.2.2 Memory-backed handles
nightly-2026-01-18 koji-0.0.2 Koji buildsystem XML-RPC API bindings
nightly-2026-01-18 koji-tool-1.3.1 Koji CLI tool for querying tasks and installing builds
lts-18.28 koofr-client-1.0.0.3 Client to Koofr API
lts-14.27 kraken-0.1.0 Kraken.io API client
lts-21.25 krank-0.3.0 Krank checks issue tracker link status in your source code
nightly-2026-01-18 kubernetes-api-132.0.0 Auto-generated kubernetes-api API Client
nightly-2026-01-18 kubernetes-api-client-0.6.1.2 Client library for Kubernetes
lts-18.28 kubernetes-webhook-haskell-0.2.0.3 Create Kubernetes Admission Webhooks in Haskell
lts-5.16 kure-2.16.12 Combinators for Strategic Programming
nightly-2026-01-18 kvitable-1.1.1.0 Key/Value Indexed Table container and formatting library
lts-20.26 l10n-0.1.0.1 Enables providing localization as typeclass instances in separate files
nightly-2026-01-18 labels-0.3.3 Anonymous records via named tuples
nightly-2026-01-18 lackey-2.0.0.12 Generate Ruby clients from Servant APIs
lts-3.22 lambdabot-5.0.3 Lambdabot is a development tool and advanced IRC bot
lts-24.28 lambdabot-core-5.3.1.2 Lambdabot core functionality
lts-3.22 lambdabot-haskell-plugins-5.0.3 Lambdabot Haskell plugins
lts-24.28 lambdabot-irc-plugins-5.3.1.2 IRC plugins for lambdabot
lts-3.22 lambdabot-misc-plugins-5.0.1 Lambdabot miscellaneous plugins
lts-3.22 lambdabot-novelty-plugins-5.0.3 Novelty plugins for Lambdabot
lts-3.22 lambdabot-reference-plugins-5.0.3 Lambdabot reference plugins
lts-3.22 lambdabot-social-plugins-5.0.1 Social plugins for Lambdabot
lts-3.22 lambdabot-trusted-5.0.2.1 Lambdabot trusted code
lts-6.35 lambdacube-compiler-0.5.0.1 LambdaCube 3D is a DSL to program GPUs
lts-6.35 lambdacube-gl-0.5.2.4 OpenGL 3.3 Core Profile backend for LambdaCube 3D
lts-6.35 lambdacube-ir-0.3.0.1 LambdaCube 3D intermediate representation of 3D graphics pipelines
nightly-2026-01-18 LambdaHack-0.11.0.1 A game engine library for tactical squad ASCII roguelike dungeon crawlers
nightly-2026-01-18 lame-0.2.2 A high-level binding to the LAME encoder
nightly-2025-05-28 langchain-hs-0.0.2.0 Haskell implementation of Langchain
nightly-2026-01-18 language-avro-0.1.4.0 Language definition and parser for AVRO files
nightly-2026-01-18 language-bash-0.11.1 Parsing and pretty-printing Bash shell scripts
nightly-2026-01-18 language-c-0.10.1 Analysis and generation of C code
nightly-2026-01-18 language-c99-0.2.0 An implementation of the C99 AST that strictly follows the standard
nightly-2026-01-18 language-c99-simple-0.3.0 C-like AST to simplify writing C99 programs
nightly-2026-01-18 language-c99-util-0.2.0 Utilities for language-c99
nightly-2026-01-18 language-c-quote-0.13.0.2 C/CUDA/OpenCL/Objective-C quasiquoting library
lts-24.28 language-docker-14.0.1 Dockerfile parser, pretty-printer and embedded DSL
lts-9.21 language-dockerfile-0.3.6.0 Dockerfile linter, parser, pretty-printer and embedded DSL
nightly-2026-01-18 language-dot-0.1.2 A library for the analysis and creation of Graphviz DOT files
lts-14.26 language-ecmascript-0.19 JavaScript parser and pretty-printer library
nightly-2021-09-18 language-fortran-0.5.1 Fortran lexer and parser, language support, and extensions.
nightly-2026-01-18 language-glsl-0.3.0 GLSL abstract syntax tree, parser, and pretty-printer
lts-16.31 language-haskell-extract-0.2.4 Module to automatically extract functions from the local code
nightly-2026-01-18 language-java-0.2.9 Java source manipulation
nightly-2026-01-18 language-javascript-0.7.1.0 Parser for JavaScript
lts-24.28 language-lua-0.11.0.2 Lua parser and pretty-printer
lts-9.21 language-lua2-0.1.0.5 Lua parser and pretty printer
nightly-2026-01-18 language-nix-2.3.0 Data types and functions to represent the Nix language
nightly-2026-01-18 language-protobuf-1.0.1 Language definition and parser for Protocol Buffers
lts-16.31 language-puppet-1.4.6.5 Tools to parse and evaluate the Puppet DSL
lts-22.44 language-python-0.5.8 Parsing and pretty printing of Python code.
lts-23.28 language-thrift-0.13.0.0 Parser and pretty printer for the Thrift IDL format
nightly-2026-01-18 lapack-0.5.2 Numerical Linear Algebra using LAPACK
nightly-2026-01-18 lapack-carray-0.0.3 Auto-generated interface to Fortran LAPACK via CArrays
nightly-2026-01-18 lapack-comfort-array-0.0.1.1 Auto-generated interface to Fortran LAPACK via comfort-array
nightly-2026-01-18 lapack-ffi-0.0.3 Auto-generated interface to Fortran LAPACK
nightly-2026-01-18 lapack-ffi-tools-0.1.3.2 Generator for Haskell interface to Fortran LAPACK
nightly-2026-01-18 lapack-hmatrix-0.0.0.2 Conversion of objects between 'lapack' and 'hmatrix'
nightly-2026-01-18 large-hashable-0.1.2.0 Efficiently hash (large) Haskell values
nightly-2026-01-18 largeword-1.2.5 Provides Word128, Word192 and Word256 and a way of producing other large words if required
nightly-2026-01-18 latex-0.1.0.4 Parse, format and process LaTeX files
lts-6.35 latex-formulae-hakyll-0.2.0.3 Use actual LaTeX to render formulae inside Hakyll pages
lts-6.35 latex-formulae-image-0.1.1.3 A library for rendering LaTeX formulae as images using an actual LaTeX installation
lts-6.35 latex-formulae-pandoc-0.2.0.5 Render LaTeX formulae in pandoc documents to images with an actual LaTeX installation
nightly-2026-01-18 lattices-2.2.1 Fine-grained library for constructing and manipulating lattices
nightly-2026-01-18 lawful-0.1.0.0 Assert the lawfulness of your typeclass instances
nightly-2026-01-18 lawful-conversions-0.3.0.4 Lawful typeclasses for bidirectional conversion between types
nightly-2026-01-18 layoutz-0.2.0.0 Simple, beautiful CLI output for Haskell
nightly-2026-01-18 lazy-csv-0.5.1 Efficient lazy parsers for CSV (comma-separated values)
nightly-2026-01-18 lazyio-0.1.0.4 Run IO actions lazily while respecting their order
lts-23.28 lazyppl-1.0 Lazy Probabilistic Programming Library
nightly-2026-01-18 lazysmallcheck-0.6 A library for demand-driven testing of Haskell programs
nightly-2026-01-18 lca-0.4 O(log n) persistent online lowest common ancestor search without preprocessing
nightly-2026-01-18 leancheck-1.0.4 Enumerative property-based testing
nightly-2026-01-18 leancheck-instances-0.0.8 Common LeanCheck instances
nightly-2026-01-18 leapseconds-announced-2017.1.0.1 Leap seconds announced at library release time
nightly-2026-01-18 learn-physics-0.6.7 Haskell code for learning physics
nightly-2026-01-18 leb128-cereal-1.2 LEB128 and SLEB128 encoding
lts-6.35 leksah-server-0.15.2.0 Metadata collection for leksah
nightly-2026-01-18 lens-5.3.6 Lenses, Folds and Traversals
lts-11.22 lens-accelerate-0.1.0.0 Instances to mix lens with accelerate
nightly-2026-01-18 lens-action-0.2.6 Monadic Getters and Folds
nightly-2026-01-18 lens-aeson-1.2.3 Law-abiding lenses for aeson
nightly-2026-01-18 lens-csv-0.1.1.0
lts-18.28 lens-datetime-0.3 Lenses for Data.Time.* types
nightly-2026-01-18 lens-family-2.1.3 Lens Families
nightly-2026-01-18 lens-family-core-2.1.3 Haskell 2022 Lens Families
nightly-2026-01-18 lens-family-th-0.5.3.2 Generate lens-family style lenses
lts-13.30 lens-labels-0.3.0.1 Integration of lenses with OverloadedLabels
nightly-2026-01-18 lens-misc-0.0.2.0 Miscellaneous lens utilities
lts-19.33 lens-process-0.4.0.0 Optics for system processes
nightly-2026-01-18 lens-properties-4.11.1 QuickCheck properties for lens
nightly-2026-01-18 lens-regex-0.1.3 Lens powered regular expression
nightly-2026-01-18 lens-regex-pcre-1.1.2.0 A lensy interface to regular expressions
lts-14.27 lens-simple-0.1.0.9 simplified import of elementary lens-family combinators
lts-14.26 lens-typelevel-0.1.1.0 Type-level lenses using singletons
nightly-2026-01-18 lentil-1.5.10.0 frugal issue tracker
lts-18.28 lenz-0.4.2.0 Van Laarhoven lenses
nightly-2026-01-18 LetsBeRational-1.0.0.0 European option implied vol calculation
nightly-2026-01-18 leveldb-haskell-0.6.5.1 Haskell bindings to LevelDB
nightly-2026-01-18 lexer-applicative-2.1.0.2 Simple lexer based on applicative regular expressions
lts-9.21 lhs2tex-1.19 Preprocessor for typesetting Haskell sources with LaTeX
nightly-2026-01-18 libBF-0.6.8 A binding to the libBF library
nightly-2026-01-18 libffi-0.2.1 A binding to libffi
lts-21.25 libgit-0.3.1 Simple Git Wrapper
lts-20.26 libgraph-1.14 Store and manipulate data in a graph
lts-11.22 libinfluxdb-0.0.4 libinfluxdb
lts-22.43 libiserv-9.6.6 Provides shared functionality between iserv and iserv-proxy
lts-18.28 libjwt-typed-0.2 A Haskell implementation of JSON Web Token (JWT)
nightly-2026-01-18 libmpd-0.10.0.1 An MPD client library
lts-9.21 libnotify-0.2 Bindings to libnotify library
nightly-2026-01-18 liboath-hs-0.0.1.2 Bindings to liboath
lts-14.26 libraft-0.5.0.0 Raft consensus algorithm
lts-9.21 librato-0.2.0.1 Bindings to the Librato API
nightly-2026-01-18 libsodium-bindings-0.0.3.0 FFI bindings to libsodium
lts-11.22 libsystemd-journal-1.4.3 Haskell bindings to libsystemd-journal
lts-12.26 libxml-sax-0.7.5 Bindings for the libXML2 SAX interface
nightly-2026-01-18 libyaml-0.1.4 Low-level, streaming YAML interface
nightly-2026-01-18 libyaml-clib-0.2.5 libyaml clibs
lts-19.33 LibZip-1.0.1 Bindings to libzip, a library for manipulating zip archives
lts-11.22 licensor-0.2.2 A license compatibility helper
lts-17.15 life-sync-1.1.1.0 Synchronize personal configs across multiple machines
nightly-2026-01-18 lifted-async-0.11.0 Run lifted IO operations asynchronously and wait for their results
nightly-2026-01-18 lifted-base-0.2.3.12 lifted IO operations from the base library
nightly-2026-01-18 lifted-threads-1.0 lifted IO operations from the threads library
nightly-2026-01-18 lift-generics-0.3.1 GHC.Generics-based Language.Haskell.TH.Syntax.lift implementation
nightly-2026-01-18 lift-type-0.1.2.0 Lift a type from a Typeable constraint to a Template Haskell type
lts-22.44 line-4.0.1 Haskell SDK for the LINE API
nightly-2026-01-18 linear-1.23.3 Linear Algebra
lts-11.22 linear-accelerate-0.5.0.1 Lifting linear vector spaces into Accelerate
nightly-2026-01-18 linear-base-0.6.0 Standard library for linear types
nightly-2026-01-18 linear-circuit-0.1.0.4 Compute resistance of linear electrical circuits
nightly-2026-01-18 linear-generics-0.2.3 Generic programming library for generalised deriving
nightly-2026-01-18 linear-geo-0.1.0.0 Geographic coordinates, built on the linear package
nightly-2026-01-18 linear-programming-0.0.1 Linear Programming basic definitions
nightly-2026-01-18 linebreak-1.1.0.4 breaks strings to fit width
lts-20.26 linenoise-0.3.2 A lightweight readline-replacement library for Haskell
lts-12.26 linked-list-with-iterator-0.1.1.0 A pure linked list which is mutable through iterators
nightly-2026-01-18 linux-capabilities-0.1.1.0 Linux capabilities Haskell data type
nightly-2026-01-18 linux-file-extents-0.2.0.1 Retrieve file fragmentation information under Linux
nightly-2026-01-18 linux-namespaces-0.2.0.1 Work with linux namespaces: create new or enter existing ones
nightly-2026-01-18 liquid-fixpoint-0.9.6.3.5 Predicate Abstraction-based Horn-Clause/Implication Constraint Solver
nightly-2026-01-18 liquidhaskell-0.9.12.2.1 Liquid Types for Haskell
nightly-2026-01-18 liquidhaskell-boot-0.9.12.2.1 Liquid Types for Haskell
nightly-2026-01-18 List-0.6.2 List monad transformer and class
lts-9.21 list-fusion-probe-0.1.0.7 testing list fusion for success
nightly-2026-01-18 ListLike-4.7.8.4 Generalized support for list-like structures
nightly-2026-01-18 list-predicate-0.1.0.1 Predicates on lists
lts-9.21 list-prompt-0.1.1.0 A simple list prompt UI for the terminal
nightly-2026-01-18 listsafe-0.1.0.1 Safe wrappers for partial list functions, supporting MonadThrow
nightly-2026-01-18 lists-flines-0.1.3.0 Additional data and structures to some 'String'-related lists
nightly-2026-01-18 list-shuffle-1.0.0.1 List shuffling and sampling
lts-19.33 list-singleton-2.0.0.2 Easily and clearly create lists with only one element in them
nightly-2026-01-18 list-t-1.0.5.7 ListT done right
nightly-2026-01-18 list-transformer-1.1.1 List monad transformer
nightly-2026-01-18 ListTree-0.2.3 Trees and monadic trees expressed as monadic lists where the underlying monad is a list
nightly-2026-01-18 list-witnesses-0.1.4.1 Witnesses for working with type-level lists
nightly-2026-01-18 ListZipper-1.2.0.2 Simple zipper for lists
nightly-2026-01-18 literatex-0.4.0.0 transform literate source code to Markdown
lts-22.44 little-logger-1.0.2 Basic logging based on monad-logger
lts-22.44 little-rio-2.0.1 When you need just the RIO monad
lts-18.28 llvm-hs-9.0.1 General purpose LLVM bindings
lts-12.26 llvm-hs-pretty-0.5.0.0 A pretty printer for LLVM IR.
lts-19.33 llvm-hs-pure-9.0.0 Pure Haskell LLVM functionality (no FFI)
nightly-2026-01-18 lmdb-0.2.5 Lightning MDB bindings
nightly-2026-01-18 load-env-0.2.1.0 Load environment variables from a file
lts-22.44 loc-0.2.0.0 Line and column positions and ranges in text files
nightly-2026-01-18 locators-0.3.0.5 Human exchangable identifiers and locators
nightly-2026-01-18 loch-th-0.2.2 Support for precise error locations in source files (Template Haskell version)
nightly-2026-01-18 lockfree-queue-0.2.4 Michael and Scott lock-free queues
lts-11.22 log-0.9.0.1 Structured logging solution with multiple backends
nightly-2026-01-18 log-base-0.12.1.0 Structured logging solution (base package)
nightly-2026-01-18 log-domain-0.13.2 Log-domain arithmetic
lts-11.22 log-elasticsearch-0.9.1.0 Structured logging solution (Elasticsearch back end)
nightly-2026-01-18 logfloat-0.14.0 Log-domain floating point numbers
nightly-2026-01-18 logger-thread-0.1.0.2 Run FastLogger in a thread and direct all queued messages to it
nightly-2026-01-18 logging-3.0.6 Simplified logging in IO for application writers
nightly-2026-01-18 logging-effect-1.4.1 A mtl-style monad transformer for general purpose & compositional logging
nightly-2018-09-28 logging-effect-extra-2.0.0 Supplemental packages for `logging-effect`
nightly-2018-09-28 logging-effect-extra-file-2.0.1 TH splices to augment log messages with file info
nightly-2018-09-28 logging-effect-extra-handler-2.0.1 Handy logging handler combinators
nightly-2026-01-18 logging-facade-0.3.1 Simple logging abstraction that allows multiple back-ends
nightly-2026-01-18 logging-facade-syslog-1 A logging back-end to syslog(3) for the logging-facade library
nightly-2026-01-18 logict-0.8.2.0 A backtracking logic-programming monad
lts-12.26 log-postgres-0.7.0.2 Structured logging solution (PostgreSQL back end)
nightly-2026-01-18 logstash-0.1.0.4 Logstash client library for Haskell
lts-11.22 log-warper-1.8.11 Flexible, configurable, monadic and pretty logging
lts-13.30 long-double-0.1 FFI bindings for C long double
nightly-2026-01-18 loop-0.3.0 Fast loops (for when GHC can't optimize forM_)
lts-16.31 loopbreaker-0.1.1.1 inline self-recursive definitions
nightly-2026-01-18 lpeg-1.1.0.1 LPeg – Parsing Expression Grammars For Lua
nightly-2025-12-30 LPFP-1.2.1 Code for the book Learn Physics with Functional Programming
nightly-2026-01-18 LPFP-core-1.1.5 Code for the book Learn Physics with Functional Programming
nightly-2026-01-18 lr-acts-0.2 Left and right actions, semidirect products and torsors
nightly-2026-01-18 LR-demo-0.0.20251105 LALR(1) parsetable generator and interpreter
nightly-2026-01-18 lrucache-1.2.0.1 a simple, pure LRU cache
nightly-2026-01-18 lrucaching-0.3.5 LRU cache
nightly-2026-01-18 lsfrom-2.0 List directory files starting from a specific name
nightly-2026-01-18 lsp-2.7.0.1 Haskell library for the Microsoft Language Server Protocol
nightly-2026-01-18 lsp-test-0.17.1.1 Functional test framework for LSP servers
nightly-2026-01-18 lsp-types-2.3.0.1 Haskell library for the Microsoft Language Server Protocol, data types
lts-23.28 lsql-csv-0.1.0.6 A tool for CSV files data querying from the shell with short queries.
lts-7.24 ltext-0.1.2.2 Parameterized file evaluator
lts-6.35 ltk-0.15.0.5 Leksah tool kit
nightly-2026-01-18 lua-2.3.4 Lua, an embeddable scripting language
nightly-2026-01-18 lua-arbitrary-1.0.1.2 Arbitrary instances for Lua types
nightly-2026-01-18 lucid-2.11.20250303 Clear to write, read and edit DSL for HTML
nightly-2026-01-18 lucid2-0.0.20250303 Clear to write, read and edit DSL for HTML
nightly-2026-01-18 lucid-cdn-0.2.2.0 Curated list of CDN imports for lucid
nightly-2026-01-18 lucid-extras-0.2.2 Generate more HTML with Lucid - Bootstrap, Rdash, Vega-Lite, Leaflet JS, Email
lts-9.21 lucid-svg-0.7.0.0 DSL for SVG using lucid for HTML
nightly-2026-01-18 lukko-0.1.2 File locking
nightly-2026-01-18 lumberjack-1.0.3.0 Trek through your code forest and make logs
lts-6.35 luminance-0.11.0.4 Type-safe, type-level and stateless graphics framework
lts-6.35 luminance-samples-0.11 Luminance samples
lts-11.22 lxd-client-0.1.0.6 LXD client written in Haskell
lts-20.26 lxd-client-config-0.1.0.1 Read the configuration file of the standard LXD client
nightly-2026-01-18 lz4-0.2.3.1 LZ4 compression for ByteStrings
nightly-2026-01-18 lz4-frame-conduit-0.1.0.2 Conduit implementing the official LZ4 frame streaming format
nightly-2026-01-18 lzma-0.0.1.1 LZMA/XZ compression and decompression
nightly-2026-01-18 lzma-clib-5.2.2 liblzma C library and headers for use by LZMA bindings
lts-21.25 lzma-conduit-1.2.3 Conduit interface for lzma/xz compression
nightly-2026-01-18 machines-0.7.4 Networked stream transducers
lts-18.28 machines-binary-7.0.0.0 Binary utilities for the machines library
lts-14.27 machines-directory-0.2.1.0 Directory (system) utilities for the machines library
lts-14.27 machines-io-0.2.0.13 IO utilities for the machines library
lts-9.21 machines-process-0.2.0.8 Process (system) utilities for the machines library
nightly-2026-01-18 magic-1.1 Interface to C file/magic library
lts-12.26 magicbane-0.3.0 A web framework that integrates Servant, RIO, EKG, fast-logger, wai-cli…
nightly-2026-01-18 magico-0.0.2.3 Compute solutions for Magico puzzle
lts-24.28 mail-pool-2.3.1 Preconfigured email connection pool on top of smtp
nightly-2026-01-18 mailtrap-0.1.2.2 Mailtrap API library
nightly-2026-01-18 mainland-pretty-0.7.1.1 Pretty printing designed for printing source code
nightly-2026-01-18 main-tester-0.2.0.1 Capture stdout/stderr/exit code, and replace stdin of your main function
nightly-2026-01-18 makefile-1.1.0.2 Simple Makefile parser and generator
lts-10.10 mallard-0.6.1.1 Database migration and testing as a library
nightly-2026-01-18 managed-1.0.11 A monad for managed values
nightly-2026-01-18 mandrill-0.5.8.0 Library for interfacing with the Mandrill JSON API
lts-5.18 mangopay-1.12 Bindings to the MangoPay API
nightly-2026-01-18 manifolds-core-0.6.1.1 The basic classes for the manifolds hierarchy
nightly-2026-01-18 Mantissa-0.1.0.0 Reals in the interval [0,1), as machine words
nightly-2026-01-18 mappings-0.3.3.0 Types which represent functions k -> v
lts-13.30 mapquest-api-0.3.1 Bindings to the MapQuest API
nightly-2026-01-18 map-syntax-0.3 Syntax sugar for defining maps
lts-18.28 MapWith-0.2.0.0 mapWith: like fmap, but with additional parameters (isFirst, isLast, etc)
nightly-2026-01-18 markdown-0.1.17.5 Convert Markdown to HTML, with XSS protection
nightly-2026-01-18 markdown-unlit-0.6.0 Literate Haskell support for Markdown
nightly-2026-01-18 markov-chain-0.0.3.4 Markov Chains for generating random sequences with a user definable behaviour
nightly-2026-01-18 markov-chain-usage-model-0.0.0 Computations for Markov chain usage models
lts-11.22 markup-4.0.4 Abstraction for HTML-embedded content
nightly-2026-01-18 markup-parse-0.2.2.0 A markup parser
lts-10.10 marvin-0.2.5 A framework for modular, portable chat bots
lts-12.26 marvin-interpolate-1.1.2 Compile time string interpolation a la Scala and CoffeeScript
lts-6.35 MASMGen-0.5.0.0 Generate MASM code from haskell
lts-22.44 mason-0.2.6 Fast and extensible bytestring builder
nightly-2026-01-18 massiv-1.0.5.0 Massiv (Массив) is an Array Library
nightly-2026-01-18 massiv-io-1.0.0.1 Import/export of Image files into massiv Arrays
nightly-2026-01-18 massiv-persist-1.0.0.3 Compatibility of 'massiv' with 'persist'
nightly-2019-03-27 massiv-scheduler-0.1.0.0 Work stealing scheduler for Massiv (Массив) and other parallel applications
nightly-2026-01-18 massiv-serialise-1.0.0.2 Compatibility of 'massiv' with 'serialise'
nightly-2026-01-18 massiv-test-1.1.0.1 Library that contains generators, properties and tests for Massiv Array Library
nightly-2026-01-18 matchable-0.2 A type class for Matchable Functors
nightly-2026-01-18 mathexpr-0.3.1.0 Parse and evaluate math expressions with variables and functions
nightly-2026-01-18 math-extras-0.1.1.0 A variety of mathematical utilities
nightly-2026-01-18 math-functions-0.3.4.4 Collection of tools for numeric computations
nightly-2026-01-18 mathlist-0.2.0.0 Math using lists, including FFT and Wavelet
nightly-2026-01-18 matplotlib-0.7.7 Bindings to Matplotlib; a Python plotting library
nightly-2026-01-18 matrices-0.5.0 native matrix based on vector
nightly-2026-01-18 matrix-0.3.6.4 A native implementation of matrix operations
nightly-2026-01-18 matrix-as-xyz-0.1.2.2 Read and Display Jones-Faithful notation for spacegroup and planegroup
nightly-2026-01-18 matrix-market-attoparsec-0.1.1.3 Parsing and serialization functions for the NIST Matrix Market format
nightly-2026-01-18 matrix-static-0.3 Type-safe matrix operations
nightly-2026-01-18 maximal-cliques-0.1.1 Enumerate all maximal cliques of a graph
lts-2.22 MaybeT-0.1.2 MaybeT monad transformer
lts-19.33 mbox-0.3.4 Read and write standard mailbox files
nightly-2026-01-18 mbox-utility-0.0.3.1 List contents of an mbox file containing e-mails
lts-19.33 mbtiles-0.6.0.0 Haskell MBTiles client
lts-13.30 mbug-1.3.2 download bugs mailboxes
nightly-2026-01-18 mcmc-0.8.3.1 Sample from a posterior using Markov chain Monte Carlo
nightly-2026-01-18 mcmc-types-1.0.3 Common types for sampling
nightly-2026-01-18 mcp-server-0.1.0.15 Library for building Model Context Protocol (MCP) servers
nightly-2026-01-18 mealy-0.5.1.1 Mealy machines for processing time-series and ordered data
lts-18.28 medea-1.2.0 A schema language for JSON
lts-9.21 mediabus-0.4.0.1 Multimedia streaming on top of Conduit
lts-9.21 mediabus-rtp-0.4.0.1 Receive and Send RTP Packets
nightly-2026-01-18 median-stream-0.7.0.0 Constant-time queries for the median of a stream of numeric data
nightly-2026-01-18 med-module-0.1.3 Parse song module files from Amiga MED and OctaMED
nightly-2026-01-18 megaparsec-9.7.0 Monadic parser combinators
nightly-2026-01-18 megaparsec-tests-9.7.0 Test utilities and the test suite of Megaparsec
lts-22.44 mega-sdist-0.4.3.1 Handles uploading to Hackage from mega repos
lts-24.28 melf-1.3.1 An Elf parser
nightly-2026-01-18 membership-0.0.1 Indices for type level lists
lts-18.28 membrain-0.0.0.2 Type-safe memory units
nightly-2026-01-18 memcache-0.3.0.2 A memcached client library
lts-6.35 memcached-binary-0.2.0 memcached client using binary protocol
lts-22.44 memfd-1.0.1.3 Open temporary anonymous Linux file handles
nightly-2026-01-18 mem-info-0.4.1.2 Print the core memory usage of programs
lts-6.35 memoization-utils-0.1.0.1 Utilities for memoizing functions
lts-6.35 memoize-0.7 A memoization library
nightly-2026-01-18 memory-0.18.0 memory and related abstraction stuff
nightly-2026-01-18 MemoTrie-0.6.11 Trie-based memo functions
nightly-2026-01-18 mempack-0.2.0.0 Short description
lts-14.26 menshen-0.0.3 Data Validation
lts-19.33 mercury-api-0.1.0.2 Haskell binding to Mercury API for ThingMagic RFID readers
nightly-2026-01-18 mergeful-0.3.0.0
nightly-2026-01-18 mergeful-persistent-0.3.0.1 Support for using mergeful from persistent-based databases
nightly-2026-01-18 mergeless-0.4.0.0
nightly-2026-01-18 mergeless-persistent-0.1.0.1 Support for using mergeless from persistent-based databases
lts-24.28 merkle-tree-0.1.1 An implementation of a Merkle tree and merkle tree proofs of inclusion
nightly-2026-01-18 mersenne-random-1.0.0.1 Generate high quality pseudorandom numbers using a SIMD Fast Mersenne Twister
nightly-2026-01-18 mersenne-random-pure64-0.2.2.0 Generate high quality pseudorandom numbers purely using a Mersenne Twister
nightly-2026-01-18 messagepack-0.5.5 Serialize instance for Message Pack Object
lts-12.26 messagepack-rpc-0.5.1 Message Pack RPC over TCP
nightly-2026-01-18 metrics-0.4.1.1 High-performance application metric tracking
lts-11.22 MFlow-0.4.6.0 stateful, RESTful web framework
nightly-2026-01-18 mfsolve-0.3.2.2 Equation solver and calculator à la metafont
nightly-2015-12-14 Michelangelo-0.2.3.0 OpenGL for dummies
nightly-2026-01-18 microaeson-0.1.0.3 A tiny JSON library with light dependency footprint
lts-13.30 microbench-0.1 Microbenchmark Haskell code
nightly-2026-01-18 microformats2-parser-1.0.2.3 A Microformats 2 parser
nightly-2026-01-18 microlens-0.4.14.0 A tiny lens library with no dependencies
nightly-2026-01-18 microlens-aeson-2.5.2 Law-abiding lenses for Aeson, using microlens
nightly-2026-01-18 microlens-contra-0.1.0.3 True folds and getters for microlens
nightly-2026-01-18 microlens-ghc-0.4.15.1 microlens + array, bytestring, containers, transformers
nightly-2026-01-18 microlens-mtl-0.2.1.0 microlens support for Reader/Writer/State from mtl
nightly-2026-01-18 microlens-platform-0.4.4.1 microlens + all batteries included (best for apps)
lts-20.26 microlens-process-0.2.0.2 Micro-optics for the process library
nightly-2026-01-18 microlens-th-0.4.3.17 Automatic generation of record lenses for microlens
lts-10.10 microsoft-translator-0.1.1 Bindings to the Microsoft Translator API
nightly-2026-01-18 microspec-0.2.1.3 Tiny QuickCheck test library with minimal dependencies
nightly-2026-01-18 microstache-1.0.3 Mustache templates for Haskell
nightly-2026-01-18 midair-0.2.0.1 Hot-swappable FRP
nightly-2026-01-18 midi-0.2.2.4 Handling of MIDI messages and files
nightly-2026-01-18 midi-alsa-0.2.1 Convert between datatypes of the midi and the alsa packages
nightly-2026-01-18 midi-music-box-0.0.1.2 Convert MIDI file to music box punch tape
nightly-2026-01-18 mighty-metropolis-2.0.0 The Metropolis algorithm
lts-12.26 milena-0.5.2.3 A Kafka client for Haskell
nightly-2026-01-18 mime-0.4.0.2 Working with MIME types
nightly-2026-01-18 mime-mail-0.5.1 Compose MIME email messages
lts-24.28 mime-mail-ses-0.4.3 Send mime-mail messages via Amazon SES
nightly-2026-01-18 mime-types-0.1.2.1 Basic mime-type handling types and functions
lts-18.28 mini-egison-1.0.0 Template Haskell Implementation of Egison Pattern Matching
nightly-2026-01-18 minimal-configuration-0.1.4 Minimal ini like configuration library with a few extras
nightly-2026-01-18 minimorph-0.3.0.1 English spelling functions with an emphasis on simplicity
lts-21.25 minio-hs-1.7.0 A MinIO Haskell Library for Amazon S3 compatible cloud storage
nightly-2026-01-18 minisat-0.1.4 A Haskell bundle of the Minisat SAT solver
nightly-2026-01-18 minisat-solver-0.1 High-level Haskell bindings for the MiniSat SAT solver
nightly-2026-01-18 miniterion-0.1.1.1 Simple and lightweight benchmarking utilities
nightly-2026-01-18 miniutter-0.5.1.2 Simple English clause creation from arbitrary words
nightly-2026-01-18 minmax-0.1.1.0 Functions to find both minimum and maximum (or several of them simultaneously) in one pass
lts-23.28 min-max-pqueue-0.1.0.2 Double-ended priority queues
nightly-2026-01-18 mintty-0.1.4 A reliable way to detect the presence of a MinTTY console on Windows
lts-24.28 misfortune-0.1.2.1 fortune-mod clone
nightly-2026-01-18 miso-1.8.7.0 A tasty Haskell front-end web framework
nightly-2026-01-18 missing-foreign-0.1.1 Convenience functions for FFI work
nightly-2026-01-18 MissingH-1.6.0.3 Large utility library
nightly-2026-01-18 mixed-types-num-0.6.2 Alternative Prelude with numeric and logic expressions typed bottom-up
nightly-2022-02-07 mixpanel-client-0.3.0 Mixpanel client
lts-18.28 mltool-0.2.0.1 Machine Learning Toolbox
nightly-2026-01-18 mmap-0.5.9 Memory mapped files for POSIX and Windows
nightly-2026-01-18 mmark-0.0.8.0 Strict markdown processor for writers
nightly-2026-01-18 mmark-cli-0.0.5.2 Command line interface to the MMark markdown processor
nightly-2026-01-18 mmark-ext-0.2.1.5 Commonly useful extensions for the MMark markdown processor
nightly-2026-01-18 mmorph-1.2.2 Monad morphisms
nightly-2026-01-18 mmsyn2-array-0.3.1.1 A library that can be used for multiple Ord a => a -> b transformations
nightly-2026-01-18 mmsyn7l-0.9.2.0 Modifies the amplitudes of the sounds representations created by mmsyn7ukr-array and mmsyn7ukr packages
nightly-2026-01-18 mmsyn7ukr-array-0.3.0.0 A simple reduced basic interface to some SoX functionality or to produce a voice that can be used by dobutokO2 and other similar packages
nightly-2026-01-18 mmsyn7ukr-common-0.3.1.0 Some common for mmsyn7ukr and mmsyn7ukr-array functionality using SoX
lts-14.27 mmtf-0.1.3.1 Macromolecular Transmission Format implementation
nightly-2026-01-18 mnist-idx-0.1.3.2 Read and write IDX data that is used in e.g. the MNIST database
nightly-2026-01-18 mnist-idx-conduit-0.4.0.0 conduit utilities for MNIST IDX files
nightly-2026-01-18 mockcat-1.4.1.1 Declarative mocking with a single arrow `~>`
nightly-2026-01-18 mockery-0.3.5 Support functions for automated testing
lts-21.25 mock-time-0.1.0 Mock time in tests
nightly-2026-01-18 mod-0.2.1.0 Fast type-safe modular arithmetic
lts-21.25 model-0.5 Derive a model of a data type using Generics
nightly-2026-01-18 modern-uri-0.3.6.1 Modern library for working with URIs
lts-11.22 modify-fasta-0.8.3.0 Modify fasta (and CLIP) files in several optional ways
nightly-2026-01-18 modular-0.1.0.8 Type-safe modular arithmetic
lts-12.26 moesocks-1.0.1.0 A functional firewall killer
nightly-2026-01-18 moffy-0.1.1.0 Monadic Functional Reactive Programming
nightly-2026-01-18 moffy-samples-0.1.0.3 Samples of moffy
nightly-2026-01-18 moffy-samples-events-0.2.2.5 Events for sample codes of moffy
nightly-2026-01-18 moffy-samples-gtk3-0.1.0.0 Sample executables of moffy - GTK3 version
nightly-2026-01-18 moffy-samples-gtk3-run-0.1.0.7 Package to run moffy samples - GTK3 version
lts-11.22 mole-0.0.6 A glorified string replacement tool
lts-23.28 monad-bayes-1.3.0.4 A library for probabilistic programming
lts-6.35 MonadCatchIO-transformers-0.3.1.3 Monad-transformer compatible version of the Control.Exception module
nightly-2026-01-18 monad-chronicle-1.1 These as a transformer, ChronicleT
nightly-2026-01-18 monad-control-1.0.3.1 Lift control operations, like exception catching, through monad transformers
nightly-2026-01-18 monad-control-aligned-0.0.2.1 Lift control operations, like exception catching, through monad transformers
nightly-2026-01-18 monad-control-identity-0.2.0.0 Stronger classes than monad-control
nightly-2026-01-18 monad-coroutine-0.9.3 Coroutine monad transformer for suspending and resuming monadic computations
lts-10.10 monadcryptorandom-0.7.2 A monad for using CryptoRandomGen
nightly-2026-01-18 monad-extras-0.6.0 Extra utility functions for working with monads
lts-10.10 monad-http-0.1.0.0 A class of monads which can do http requests
lts-21.25 monadic-arrays-0.2.2 Boxed and unboxed arrays for monad transformers
nightly-2026-01-18 monad-interleave-0.2.0.1 Monads with an unsaveInterleaveIO-like operation
lts-21.25 monad-journal-0.8.1 Pure logger typeclass and monad transformer
lts-5.16 monadLib-3.7.3 A collection of monad transformers
nightly-2026-01-18 monadlist-0.0.2 Monadic versions of list functions
lts-21.25 monadloc-0.7.1 A class for monads which can keep a monadic call trace
nightly-2026-01-18 monad-logger-0.3.42 A class of monads which can log messages
nightly-2026-01-18 monad-logger-aeson-0.4.1.5 JSON logging using monad-logger interface
nightly-2026-01-18 monad-logger-extras-0.1.1.2 Utilities for composing loggers, coloring output, plus a few orphan instances
nightly-2026-01-18 monad-logger-json-0.1.0.0 JSON-friendly Logging APIs
nightly-2026-01-18 monad-logger-logstash-0.2.0.2 Logstash backend for monad-logger
lts-20.26 monad-logger-prefix-0.1.12 Add prefixes to your monad-logger output
nightly-2026-01-18 monad-logger-syslog-0.1.6.1 syslog output for monad-logger
nightly-2026-01-18 monad-loops-0.4.3 Monadic loops
nightly-2026-01-18 monad-memo-0.5.4 Memoization monad transformer
nightly-2026-01-18 monad-metrics-0.2.2.2 A convenient wrapper around EKG metrics
lts-11.22 monad-mock-0.2.0.0 A monad transformer for mocking mtl-style typeclasses
nightly-2026-01-18 monadoid-0.0.3 A monoid for monads
nightly-2026-01-18 monadology-0.4 The best ideas in monad-related classes and types
nightly-2026-01-18 monad-par-0.3.6 A library for parallel programming based on a monad
nightly-2026-01-18 monad-parallel-0.8.0.1 Parallel execution of monadic computations
nightly-2026-01-18 monad-par-extras-0.3.3 Combinators and extra features for Par monads
nightly-2026-01-18 monad-peel-0.3 Lift control operations like exception catching through monad transformers
lts-11.22 monadplus-1.4.2 Haskell98 partial maps and filters over MonadPlus.
lts-21.25 monad-primitive-0.1 Type class for monad transformers stack with pirimitive base monad
lts-21.25 monad-products-4.0.1 Monad products
nightly-2026-01-18 MonadPrompt-1.0.0.5 MonadPrompt, implementation & examples
nightly-2026-01-18 MonadRandom-0.6.2 Random-number generation monad
lts-12.26 monad-recorder-0.1.1 Record and replay the results of monadic actions
nightly-2026-01-18 monad-resumption-0.1.4.0 Resumption and reactive resumption monads for Haskell
nightly-2026-01-18 monad-schedule-1.6 A new, simple, composable concurrency abstraction
lts-20.26 monad-skeleton-0.2 Monads of program skeleta
nightly-2026-01-18 monad-st-0.2.4.1 Provides a MonadST class
nightly-2026-01-18 monads-tf-0.3.0.1 Monad classes, using type families
lts-5.18 monad-stm-0.1.0.2 MonadSTM class analogous to MonadIO
nightly-2026-01-18 monad-time-0.4.0.0 Type class for monads which carry the notion of the current time
lts-18.28 monad-unlift-0.2.0 Typeclasses for representing monad transformer unlifting
lts-18.28 monad-unlift-ref-0.2.1 Typeclasses for representing monad transformer unlifting
lts-24.28 mongoDB-2.7.1.4 Driver (client) for MongoDB, a free, scalable, fast, document DBMS
nightly-2026-01-18 monoidal-containers-0.6.6.0 Containers with monoidal accumulation
nightly-2026-01-18 monoidal-functors-0.2.3.0 Monoidal Functors Library
nightly-2026-01-18 monoid-extras-0.7 Various extra monoid-related definitions and utilities
nightly-2026-01-18 monoid-insertleft-0.1.0.1 Some extension to the Foldable and Monoid classes
nightly-2026-01-18 monoid-map-0.2.0.1 A monoidal map with the right group instance
nightly-2026-01-18 monoidmap-0.0.5.0 Monoidal map type
nightly-2026-01-18 monoidmap-aeson-0.0.0.6 JSON support for monoidmap
nightly-2026-01-18 monoidmap-examples-0.0.0.1 Examples for monoidmap
nightly-2026-01-18 monoidmap-internal-0.1.0.1 Internal support for monoidmap
nightly-2026-01-18 monoidmap-quickcheck-0.0.0.3 QuickCheck support for monoidmap
nightly-2026-01-18 monoid-subclasses-1.2.6.1 Subclasses of Monoid
nightly-2026-01-18 monoid-transformer-0.0.4 Monoid counterparts to some ubiquitous monad transformers
lts-22.44 monomer-1.6.0.1 A GUI library for writing native Haskell applications
nightly-2026-01-18 mono-traversable-1.0.21.0 Type classes for mapping, folding, and traversing monomorphic containers
nightly-2026-01-18 mono-traversable-instances-0.1.1.0 Extra typeclass instances for mono-traversable
lts-23.28 mono-traversable-keys-0.3.0 Type-classes for interacting with monomorphic containers with a key
nightly-2026-01-18 more-containers-0.2.2.2 A few more collections
nightly-2026-01-18 morpheus-graphql-0.28.2 Morpheus GraphQL
nightly-2026-01-18 morpheus-graphql-app-0.28.2 Morpheus GraphQL App
nightly-2026-01-18 morpheus-graphql-client-0.28.2 Morpheus GraphQL Client
nightly-2026-01-18 morpheus-graphql-code-gen-0.28.2 Morpheus GraphQL CLI
nightly-2026-01-18 morpheus-graphql-code-gen-utils-0.28.2 Morpheus GraphQL CLI
nightly-2026-01-18 morpheus-graphql-core-0.28.2 Morpheus GraphQL Core
nightly-2026-01-18 morpheus-graphql-server-0.28.2 Morpheus GraphQL
nightly-2026-01-18 morpheus-graphql-subscriptions-0.28.2 Morpheus GraphQL Subscriptions
nightly-2026-01-18 morpheus-graphql-tests-0.28.2 Morpheus GraphQL Test
nightly-2018-09-28 morte-1.7.1 A bare-bones calculus of constructions
nightly-2026-01-18 moss-0.2.0.1 Haskell client for Moss
nightly-2026-01-18 mountpoints-1.0.2 list mount points
nightly-2026-01-18 mpi-hs-0.7.3.1 MPI bindings for Haskell
nightly-2026-01-18 mpi-hs-binary-0.1.1.0 MPI bindings for Haskell
nightly-2026-01-18 mpi-hs-cereal-0.1.0.0 MPI bindings for Haskell
nightly-2026-01-18 msgpack-1.0.1.0 A Haskell implementation of MessagePack
nightly-2023-10-02 msgpack-aeson-0.1.0.0 Aeson adapter for MessagePack
lts-6.35 msi-kb-backlit-0.1.0.1 A command line tool to change backlit colors of your MSI keyboards
nightly-2026-01-18 mstate-0.2.11 MState: A consistent State monad for concurrent applications
lts-24.28 mt19937-0.1.1 Standard 32-bit Mersenne Twister PRNG, in pure Haskell
nightly-2026-01-17 mtl-2.3.1 Monad classes for transformers, using functional dependencies
nightly-2026-01-18 mtl-compat-0.2.2 Backported Control.Monad.Except module from mtl
nightly-2026-01-18 mtl-misc-yj-0.1.0.4 tribial tools about mtl
lts-2.22 mtlparse-0.1.4.0 parse library using mtl package
nightly-2026-01-18 mtl-prelude-2.0.3.2 Reexports of most definitions from "mtl" and "transformers"
lts-3.22 mueval-0.9.1.1.2 Safely evaluate pure Haskell expressions
nightly-2026-01-18 multiarg-0.30.0.10 Command lines for options that take multiple arguments
lts-23.28 multi-containers-0.2 A few multimap variants
nightly-2026-01-18 multimap-1.2.1 A multimap
nightly-2026-01-18 multipart-0.2.1 Parsers for the HTTP multipart format
lts-5.16 multiplate-0.0.3 Lightweight generic library for mutually recursive data types
nightly-2026-01-18 MultipletCombiner-0.0.7 A Haskell implementation for combining SU(n) multiplets
nightly-2026-01-18 multiset-0.3.4.3 The Data.MultiSet container type
lts-8.24 multiset-comb-0.2.4.1 Combinatorial algorithms over multisets
nightly-2026-01-18 multistate-0.8.0.4 like mtl's ReaderT / WriterT / StateT, but more than one contained value/type
nightly-2026-01-18 murmur3-1.0.6 Pure Haskell implementation of the MurmurHash3 x86 algorithm
nightly-2026-01-18 murmur-hash-0.1.0.11 MurmurHash2 implementation for Haskell
lts-9.21 mushu-0.1.1 Minimalist MPD client
nightly-2026-01-18 MusicBrainz-0.4.1 interface to MusicBrainz XML2 and JSON web services
nightly-2026-01-18 mustache-2.4.3.1 A mustache template parser library
nightly-2026-01-18 mutable-containers-0.3.4.1 Abstactions and concrete implementations of mutable containers
nightly-2026-01-18 mwc-probability-2.3.1 Sampling function-based probability distributions
lts-14.26 mwc-probability-transition-0.4 A Markov stochastic transition operator with logging
nightly-2026-01-18 mwc-random-0.15.3.0 Fast, high quality pseudo random number generation
lts-11.22 mwc-random-accelerate-0.1.0.0 Generate Accelerate arrays filled with high quality pseudorandom numbers
lts-21.25 mwc-random-monad-0.7.3.1 Monadic interface for mwc-random
nightly-2026-01-18 mx-state-codes-1.0.0.0 ISO 3166-2:MX State Codes and Names
nightly-2026-01-18 myers-diff-0.3.0.2
lts-24.28 mysql-0.2.1 A low-level MySQL client library
lts-23.28 mysql-haskell-1.1.6 pure haskell MySQL driver
lts-23.28 mysql-haskell-nem-0.1.0.0 Adds a interface like mysql-simple to mysql-haskell
lts-12.26 mysql-haskell-openssl-0.8.3.0 TLS support for mysql-haskell package using openssl
lts-24.28 mysql-json-table-0.1.4.1 Using MySQL to store id-to-json tables
lts-24.28 mysql-simple-0.4.9 A mid-level MySQL client library
nightly-2026-01-18 n2o-0.11.1 Abstract Protocol Loop
nightly-2026-01-18 n2o-nitro-0.11.2 Nitro Elements, Events and Actions
nightly-2026-01-18 nagios-check-0.3.2 Package for writing monitoring plugins
nightly-2018-03-10 nakadi-client-0.5.0.3 Client library for the Nakadi Event Broker
nightly-2026-01-18 named-0.3.0.2 Named parameters (keyword arguments) for Haskell
nightly-2026-01-18 named-text-1.2.2.0 A parameterized named text type and associated functionality
nightly-2026-01-18 names-th-0.3.0.1 Manipulate name strings for TH
nightly-2026-01-18 nano-erl-0.1.0.1 Small library for Erlang-style actor semantics
nightly-2026-01-18 NanoID-3.4.1.2 NanoID generator
nightly-2026-01-18 nanospec-0.2.2 A lightweight implementation of a subset of Hspec's API
lts-23.28 nanovg-0.8.1.0 Haskell bindings for nanovg
nightly-2019-09-21 naqsha-0.3.0.1 A library for working with anything map related
lts-8.24 nationstates-0.5.0.0 NationStates API client
nightly-2026-01-18 nats-1.1.2 Natural numbers
nightly-2026-01-18 natural-arithmetic-0.2.3.0 Arithmetic of natural numbers
nightly-2026-01-18 natural-induction-0.2.0.0 Induction over natural numbers
nightly-2026-01-18 natural-sort-0.1.2 User-friendly text collation
nightly-2026-01-18 natural-transformation-0.4.1 A natural transformation package
lts-22.44 ndjson-conduit-0.1.0.5 Conduit-based parsing and serialization for newline delimited JSON
nightly-2026-01-18 neat-interpolation-0.5.1.4 Quasiquoter for neat and simple multiline text interpolation
lts-24.28 nerd-font-icons-0.1.0.0 Nerd Font Icons for use in haskell
lts-6.35 nested-routes-7.0.0 Declarative, compositional Wai responses
nightly-2026-01-18 netcode-io-0.0.3 Bindings to the low-level netcode.io library
nightly-2026-01-18 netlib-carray-0.1 Helper modules for CArray wrappers to BLAS and LAPACK
nightly-2026-01-18 netlib-comfort-array-0.0.0.2 Helper modules for comfort-array wrappers to BLAS and LAPACK
nightly-2026-01-18 netlib-ffi-0.1.2 Helper modules for FFI to BLAS and LAPACK
nightly-2026-01-18 net-mqtt-0.8.6.3 An MQTT Protocol Implementation
nightly-2026-01-18 net-mqtt-lens-0.1.1.0 Optics for net-mqtt
nightly-2026-01-18 netpbm-1.0.4 Loading PBM, PGM, PPM image files
nightly-2026-01-18 netrc-0.2.0.2 Parser for .netrc files
nightly-2026-01-18 nettle-0.3.1.1 safe nettle binding
nightly-2026-01-18 netwire-5.0.3 Functional reactive programming library
nightly-2026-01-18 netwire-input-0.0.7 Input handling abstractions for netwire
nightly-2026-01-18 netwire-input-glfw-0.0.12 GLFW instance of netwire-input
nightly-2026-01-18 network-3.2.8.0 Low-level networking interface
lts-14.27 network-anonymous-i2p-0.10.0 Haskell API for I2P anonymous networking
lts-13.30 network-anonymous-tor-0.11.0 Haskell API for Tor anonymous networking
lts-14.27 network-attoparsec-0.12.2 Utility functions for running a parser against a socket
nightly-2026-01-18 network-bsd-2.8.1.0 POSIX network database (<netdb.h>) API
nightly-2026-01-18 network-byte-order-0.1.7 Network byte order utilities
lts-11.22 network-carbon-1.0.12 A Haskell implementation of the Carbon protocol (part of the Graphite monitoring tools)
lts-2.22 network-conduit-1.1.0 Stream socket data using conduits. (deprecated)
nightly-2026-01-18 network-conduit-tls-1.4.0.1 Create TLS-aware network code with conduits
nightly-2026-01-18 network-control-0.1.7 Library to control network protocols
nightly-2026-01-18 network-house-0.1.0.3 data and parsers for Ethernet, TCP, UDP, IPv4, IPv6, ICMP, DHCP, TFTP
nightly-2026-01-18 network-info-0.2.1 Access the local computer's basic network configuration
nightly-2026-01-18 network-ip-0.3.0.3 Internet Protocol data structures
nightly-2026-01-18 network-messagepack-rpc-0.1.2.0 MessagePack RPC
lts-22.44 network-messagepack-rpc-websocket-0.1.1.1 WebSocket backend for MessagePack RPC
lts-10.10 network-msgpack-rpc-0.0.4 A MessagePack-RPC Implementation
nightly-2026-01-18 network-multicast-0.3.2 Simple multicast library
lts-21.25 Network-NineP-0.4.7.3 High-level abstraction over 9P protocol
lts-6.35 network-protocol-xmpp-0.4.8 Client library for the XMPP protocol
nightly-2026-01-18 network-run-0.5.0 Simple network runner library
nightly-2026-01-18 network-simple-0.4.5 Simple network sockets usage patterns
nightly-2026-01-18 network-simple-tls-0.4.2 Simple interface to TLS secured network sockets
nightly-2026-01-18 network-transport-0.5.9 Network abstraction layer
lts-19.33 network-transport-composed-0.2.1 Compose network transports
nightly-2026-01-18 network-transport-inmemory-0.5.42 In-memory instantiation of Network.Transport
nightly-2026-01-18 network-transport-tcp-0.8.6 TCP instantiation of Network.Transport
nightly-2026-01-18 network-transport-tests-0.3.4 Unit tests for Network.Transport implementations
lts-6.35 network-transport-zeromq-0.2.1.1 ZeroMQ backend for network-transport
nightly-2026-01-18 network-uri-2.6.4.2 URI manipulation
lts-7.24 network-uri-flag-0.1 Pseudo-package encapsulating flag(network-uri) Cabal boilerplate
nightly-2026-01-18 network-uri-template-0.1.1.4 Library for parsing and expanding URI Templates, as per RFC 6570
nightly-2026-01-18 network-wait-0.4.0.0 Lightweight library for waiting on networked services to become available
nightly-2026-01-18 newtype-0.2.2.1 A typeclass and set of functions for working with newtypes
nightly-2026-01-18 newtype-generics-0.6.2 A typeclass and set of functions for working with newtypes
lts-12.26 next-ref-0.1.0.2 A concurrency primitive for a slow consumer
nightly-2026-01-18 nfc-0.1.1 libnfc bindings
nightly-2026-01-18 nicify-lib-1.0.1 Pretty print the standard output of default `Show` instances
nightly-2026-01-18 NineP-0.0.2.1 9P2000 in pure Haskell
nightly-2026-01-18 nix-derivation-1.1.3 Parse and render *.drv files
nightly-2026-01-18 nix-narinfo-0.1.1.2 Parse and render .narinfo files
nightly-2026-01-18 nix-paths-1.0.1 Knowledge of Nix's installation directories
nightly-2026-01-18 NoHoed-0.1.1 Placeholder package to preserve debug ability via conditional builds
nightly-2026-01-18 nonce-1.0.7 Generate cryptographic nonces
nightly-2026-01-18 nondeterminism-1.5 A monad and monad transformer for nondeterministic computations
nightly-2026-01-18 non-empty-0.3.5 List-like structures with static restrictions on the number of elements
nightly-2026-01-18 nonempty-containers-0.3.5.0 Non-empty variants of containers data types, with full API
lts-21.25 nonemptymap-0.0.6.0 A NonEmptyMap Implementation
nightly-2026-01-18 non-empty-sequence-0.2.0.4 Non-empty sequence
nightly-2026-01-18 non-empty-text-0.2.1 Non empty Data.Text type
nightly-2026-01-18 nonempty-vector-0.2.4 Non-empty vectors
nightly-2026-01-18 nonempty-zipper-1.0.1.1 A non-empty comonadic list zipper
nightly-2026-01-18 non-negative-0.1.2 Non-negative numbers
nightly-2026-01-18 no-recursion-0.4.0.0 A GHC plugin to remove support for recursion
nightly-2026-01-18 normaldistribution-1.1.0.3 Minimum fuss normally distributed random values
lts-20.26 normalization-insensitive-2.0.2 Normalization insensitive string comparison
lts-21.25 not-gloss-0.7.7.0 Painless 3D graphics, no affiliation with gloss
nightly-2026-01-18 nothunks-0.3.1 Examine values for unexpected thunks
lts-11.22 NoTrace-0.3.0.2 Remove all the functions come from Debug.Trace after debugging
nightly-2026-01-18 no-value-1.0.0.0 A type class for choosing sentinel-like values
nightly-2026-01-18 nowdoc-0.1.1.0 Here document without variable expansion like PHP Nowdoc
nightly-2026-01-18 nqe-0.6.6 Concurrency library in the style of Erlang/OTP
lts-18.28 nri-env-parser-0.1.0.8 Read environment variables as settings to build 12-factor apps
nightly-2022-02-07 nri-http-0.1.0.4 Make Elm style HTTP requests
nightly-2022-02-07 nri-kafka-0.1.0.4 Functions for working with Kafka
lts-18.28 nri-observability-0.1.1.4 Report log spans collected by nri-prelude
nightly-2022-02-07 nri-postgresql-0.1.0.4 Make queries against Postgresql
lts-18.28 nri-prelude-0.6.0.6 A Prelude inspired by the Elm programming language
nightly-2022-02-07 nri-redis-0.1.0.4 An intuitive hedis wrapper library
nightly-2022-02-07 nri-test-encoding-0.1.1.2 A library to simplify writing golden tests for encoding types
nightly-2026-01-18 nsis-0.3.3 DSL for producing Windows Installer using NSIS
nightly-2026-01-18 nthese-0.1.0.1 A heterogeneous, n-ary generalisation of These
nightly-2026-01-18 n-tuple-0.0.3 Homogeneous tuples of arbitrary length
nightly-2026-01-18 numbers-3000.2.0.2 Various number types
nightly-2026-01-18 numeric-extras-0.1 Useful tools from the C standard library
nightly-2026-01-18 numeric-limits-0.1.0.0 Various floating point limit related constants
nightly-2026-01-18 numeric-prelude-0.4.4 An experimental alternative hierarchy of numeric type classes
nightly-2026-01-18 numeric-quest-0.2.0.2 Math and quantum mechanics
nightly-2026-01-18 numhask-0.13.2.1 A numeric class hierarchy
lts-23.28 numhask-array-0.11.1.0 Multi-dimensional arrays
nightly-2018-03-10 numhask-histogram-0.0.1.0 See readme.md
lts-12.26 numhask-prelude-0.1.0.1 A numeric prelude
lts-12.26 numhask-range-0.2.3.1 Numbers that are range representations
nightly-2026-01-18 numhask-space-0.13.2.0 Numerical spaces
lts-12.26 numhask-test-0.1.0.0 Laws and tests for numhask
nightly-2026-01-18 NumInstances-1.4 Instances of numeric classes for functions and tuples
lts-3.22 numtype-1.1 Type-level (low cardinality) integers
nightly-2026-01-18 numtype-dk-0.5.0.3 Type-level integers, using TypeNats, Data Kinds, and Closed Type Families
lts-23.28 nuxeo-0.3.2
nightly-2026-01-18 nvim-hs-2.3.2.4 Haskell plugin backend for neovim
nightly-2026-01-18 nvim-hs-contrib-2.0.0.2 Haskell plugin backend for neovim
nightly-2026-01-18 nvim-hs-ghcid-2.0.1.0 Neovim plugin that runs ghcid to update the quickfix list
lts-23.28 nvvm-0.10.0.1 FFI bindings to NVVM
lts-9.21 oanda-rest-api-0.4.1 Client to the OANDA REST API
lts-21.25 oauthenticated-0.3.0.0 Simple OAuth for http-client
lts-12.26 objective-1.1.2 Composable objects
nightly-2026-01-18 ObjectName-1.1.0.2 Explicitly handled object names
lts-24.28 oblivious-transfer-0.1.0 An implementation of the Oblivious Transfer protocol in Haskell
lts-20.26 ochintin-daicho-0.3.4.2 A module to manage payroll books for Japanese companies
nightly-2026-01-18 o-clock-1.4.0.1 Type-safe time library
lts-9.21 octane-0.20.2 Parse Rocket League replays
lts-9.21 Octree-0.5.4.4 Simple unbalanced Octree for storing data about 3D points
nightly-2026-01-18 odbc-0.3.0 Haskell binding to the ODBC API, aimed at SQL Server driver
nightly-2026-01-18 ods2csv-0.1.0.2 Convert Open Document Spreadsheet ODS to CSV
nightly-2026-01-18 oeis-0.3.10.1 Interface to the Online Encyclopedia of Integer Sequences (OEIS)
nightly-2026-01-18 oeis2-1.0.9 Interface for Online Encyclopedia of Integer Sequences (OEIS)
nightly-2026-01-18 ofx-0.4.4.0 Parser for OFX data
nightly-2026-01-18 ogma-cli-1.11.0 Ogma: Helper tool to interoperate between Copilot and other languages
nightly-2026-01-18 ogma-core-1.11.0 Ogma: Helper tool to interoperate between Copilot and other languages
nightly-2026-01-18 ogma-extra-1.11.0 Ogma: Helper tool to interoperate between Copilot and other languages
nightly-2026-01-18 ogma-language-c-1.11.0 Ogma: Runtime Monitor translator: C Language Frontend
nightly-2026-01-18 ogma-language-copilot-1.11.0 Ogma: Runtime Monitor translator: Copilot Language Endpoints
nightly-2026-01-18 ogma-language-csv-1.11.0 Ogma: Runtime Monitor translator: CSV Frontend
nightly-2026-01-18 ogma-language-jsonspec-1.11.0 Ogma: Runtime Monitor translator: JSON Frontend
nightly-2026-01-18 ogma-language-lustre-1.11.0 Ogma: Runtime Monitor translator: Lustre Language Frontend
nightly-2026-01-18 ogma-language-smv-1.11.0 Ogma: Runtime Monitor translator: SMV Language Frontend
nightly-2026-01-18 ogma-language-xlsx-1.11.0 Ogma: Runtime Monitor translator: XLSX Frontend
nightly-2026-01-18 ogma-language-xmlspec-1.11.0 Ogma: Runtime Monitor translator: XML Frontend
nightly-2026-01-18 ogma-spec-1.11.0 Ogma: Runtime Monitor translator: JSON Frontend
nightly-2026-01-18 oidc-client-0.8.0.0 OpenID Connect 1.0 library for RP
nightly-2026-01-18 old-locale-1.0.0.7 locale library
nightly-2026-01-18 old-time-1.1.0.5 Time library
nightly-2026-01-18 ollama-haskell-0.2.1.0 Haskell client for ollama
nightly-2026-01-18 om-doh-0.1.0.4 om-doh
nightly-2026-01-18 om-elm-2.0.1.1 Haskell utilities for building embedded Elm programs
nightly-2026-01-18 om-fail-0.1.0.6 Monad transformer providing MonadFail
nightly-2026-01-18 om-fork-0.7.1.12 Concurrency utilities
nightly-2026-01-18 om-http-0.6.0.0 Http utilities
nightly-2026-01-18 om-logging-1.1.0.10 Opinionated logging utilities
lts-6.35 omnifmt-0.2.1.1 A pretty-printer wrapper to faciliate ease of formatting during development
nightly-2026-01-18 om-show-0.1.2.11 Utilities for showing string-like things
nightly-2026-01-18 om-time-0.3.1.1 Misc. time utilites
nightly-2026-01-18 once-0.4 memoization for IO actions and functions
nightly-2026-01-18 one-liner-2.1.1 Constraint-based generics
lts-24.28 one-liner-instances-0.1.3.0 Generics-based implementations for common typeclasses
nightly-2026-01-18 OneTuple-0.4.2.1 Singleton Tuple
lts-12.26 online-0.3.0.0 online statistics
nightly-2026-01-18 Only-0.1 The 1-tuple type or single-value "collection"
nightly-2026-01-18 oo-prototypes-0.1.0.0 Support for OO-like prototypes
nightly-2026-01-18 oops-0.2.0.1 Combinators for handling errors of many types in a composable way
nightly-2026-01-18 opaleye-0.10.7.0 An SQL-generating DSL targeting PostgreSQL
lts-10.10 opaleye-trans-0.4.2 A monad transformer for Opaleye
nightly-2026-01-18 OpenAL-1.7.0.5 A binding to the OpenAL cross-platform 3D audio API
lts-24.28 openapi3-3.2.4 OpenAPI 3.0 data model
nightly-2026-01-18 openapi3-code-generator-0.2.0.0 OpenAPI3 Haskell Client Code Generator
nightly-2026-01-18 open-browser-0.4.0.0 Open a web browser from Haskell
nightly-2026-01-18 openexr-write-0.1.0.2 Library for writing images in OpenEXR HDR file format
nightly-2026-01-18 OpenGL-3.0.3.0 A binding for the OpenGL graphics system
nightly-2026-01-18 OpenGLRaw-3.3.4.1 A raw binding for the OpenGL graphics system
nightly-2026-01-18 openpgp-asciiarmor-0.1.2 OpenPGP (RFC4880) ASCII Armor codec
nightly-2026-01-18 opensource-0.1.1.0 Haskell API Wrapper for the Open Source License API
nightly-2026-01-18 openssl-streams-1.2.3.0 OpenSSL network support for io-streams
nightly-2026-01-18 opentelemetry-0.8.0
nightly-2026-01-18 opentelemetry-extra-0.8.0
nightly-2020-04-23 opentelemetry-http-client-0.2.0
nightly-2026-01-18 opentelemetry-lightstep-0.8.0
nightly-2026-01-18 opentelemetry-wai-0.8.0
nightly-2026-01-18 open-witness-0.7 open witnesses
nightly-2026-01-18 operational-0.2.4.2 Implementation of difficult monads made easy with operational semantics
lts-21.25 operational-class-0.3.0.0 MonadProgram typeclass for the operational package
nightly-2026-01-18 opml-conduit-0.9.0.0 Streaming parser/renderer for the OPML 2.0 format
nightly-2026-01-18 opt-env-conf-0.13.0.0 Settings parsing for Haskell: command-line arguments, environment variables, and configuration values
nightly-2026-01-18 optics-0.4.2.1 Optics as an abstract interface
nightly-2026-01-18 optics-core-0.4.1.1 Optics as an abstract interface: core definitions
nightly-2026-01-18 optics-extra-0.4.2.1 Extra utilities and instances for optics-core
nightly-2026-01-18 optics-operators-0.1.0.1 A tiny package containing operators missing from the official package
nightly-2026-01-18 optics-th-0.4.1 Optics construction using TemplateHaskell
nightly-2026-01-18 optics-vl-0.2.1 Utilities for compatibility with van Laarhoven optics
nightly-2026-01-18 optima-0.4.0.7 Simple command line interface arguments parser
nightly-2026-01-18 optional-args-1.0.2 Optional function arguments
nightly-2026-01-18 options-1.2.1.2 Powerful and easy command-line option parser
nightly-2026-01-18 optparse-applicative-0.19.0.0 Utilities and combinators for parsing command line options
nightly-2026-01-18 optparse-applicative-dex-1.0.1 Extra functions for working with optparse-applicative
nightly-2026-01-18 optparse-enum-1.0.0.0 An enum-text based toolkit for optparse-applicative
nightly-2026-01-18 optparse-generic-1.5.2 Auto-generate a command-line parser for your datatype
lts-9.21 optparse-helper-0.2.1.1 Helper functions for optparse-applicative
nightly-2026-01-18 optparse-simple-0.1.1.4 Simple interface to optparse-applicative
nightly-2026-01-18 optparse-text-0.1.1.0 Data.Text helpers for optparse-applicative
nightly-2026-01-18 OrderedBits-0.0.2.0 Efficient ordered (by popcount) enumeration of bits
nightly-2026-01-18 ordered-containers-0.2.4 Set- and Map-like types that remember the order elements were inserted
nightly-2026-01-18 ormolu-0.8.0.2 A formatter for Haskell source code
nightly-2026-01-18 orthotope-0.1.7.2 Multidimensional arrays inspired by APL
lts-9.21 osdkeys-0.0 Show keys pressed with an on-screen display (Linux only)
lts-14.27 oset-0.4.0.1 An insertion-order-preserving set
nightly-2026-01-17 os-string-2.0.8 Library for manipulating Operating system strings
nightly-2026-01-18 overhang-1.0.0 Hang loose with your lambdas!
lts-9.21 overloaded-records-0.4.2.0 Overloaded Records based on current GHC proposal
nightly-2025-10-11 ox-arrays-0.1.0.0 An efficient CPU-based multidimensional array (tensor) library
lts-11.22 package-description-remote-0.2.0.0 Fetches a 'GenericPackageDescription' from Hackage
nightly-2026-01-18 packcheck-0.7.1 Universal build and CI testing for Haskell packages
lts-18.28 packdeps-0.6.0.0 Check your cabal packages for lagging dependencies
lts-9.21 packunused-0.1.2 Tool for detecting redundant Cabal package dependencies
nightly-2026-01-18 pager-0.1.1.0 Open up a pager, like 'less' or 'more'
lts-11.22 pagerduty-0.0.8 Client library for PagerDuty Integration and REST APIs
nightly-2026-01-18 pagination-0.2.2 Framework-agnostic pagination boilerplate
nightly-2026-01-18 pagure-0.2.1 Pagure REST client library
nightly-2026-01-18 pagure-cli-0.2.2 A Pagure gitforge query tool
lts-14.26 pairing-0.4.1 Bilinear pairings
nightly-2026-01-18 palette-0.3.0.4 Utilities for choosing and creating color schemes
nightly-2026-01-18 pandoc-3.8.3 Conversion between markup formats
lts-16.31 pandoc-citeproc-0.17.0.1 Supports using pandoc with citeproc
nightly-2026-01-18 pandoc-cli-3.8.3 Conversion between documentation formats
lts-20.26 pandoc-csv2table-1.0.9 Convert CSV to Pandoc Table Markdown
lts-22.44 pandoc-dhall-decoder-0.1.0.1 Decodes pandoc to dhall
nightly-2026-01-18 pandoc-lua-engine-0.5.0.2 Lua engine to power custom pandoc conversions
nightly-2026-01-18 pandoc-lua-marshal-0.3.2.1 Use pandoc types in Lua
lts-14.27 pandoc-markdown-ghci-filter-0.1.0.0 Pandoc-filter to evaluate `code` section in markdown and auto-embed output
nightly-2026-01-18 pandoc-plot-1.9.1 A Pandoc filter to include figures generated from code blocks using your plotting toolkit of choice
lts-16.31 pandoc-pyplot-2.3.0.1 A Pandoc filter to include figures generated from Python code blocks
nightly-2026-01-18 pandoc-server-0.1.1 Pandoc document conversion as an HTTP servant-server
lts-21.25 pandoc-symreg-0.2.0.0 A tool to convert symbolic regression expressions into different formats
nightly-2026-01-18 pandoc-throw-0.1.0.0 MonadThrow behaviour for Pandoc
nightly-2026-01-18 pandoc-types-1.23.1.1 Types for representing a structured document
lts-24.28 pango-0.13.12.0 Binding to the Pango text rendering engine
nightly-2026-01-18 panic-0.4.0.1 A convenient way to panic
nightly-2026-01-18 pantry-0.11.2 Content addressable Haskell package management
nightly-2019-06-20 pantry-tmp-0.1.0.0 Content addressable Haskell package management
lts-16.31 papillon-0.1.1.1 packrat parser
nightly-2026-01-18 parallel-3.3.0.0 Parallel programming library
nightly-2026-01-18 parallel-io-0.3.5 Combinators for executing IO actions in parallel on a thread pool
nightly-2026-01-18 parameterized-0.5.0.0 Parameterized/indexed monoids and monads using only a single parameter type variable
nightly-2026-01-18 parameterized-utils-2.1.11.0 Classes and data structures for working with data-kind indexed types
nightly-2026-01-18 paramtree-0.1.2 Generate labelled test/benchmark trees from sets of parameters
lts-18.28 paripari-0.7.0.0 Parser combinators with fast-path and slower fallback for error reporting
nightly-2026-01-18 park-bench-0.1.1.0 A quick-and-dirty, low-friction benchmark tool with immediate feedback
nightly-2026-01-18 parseargs-0.2.0.9 Parse command-line arguments
nightly-2026-01-17 parsec-3.1.18.0 Monadic parser combinators
nightly-2026-01-18 parsec-class-1.0.1.0 Class of types that can be constructed from their text representation
nightly-2026-01-18 parsec-numbers-0.1.0 Utilities for parsing numbers from strings
nightly-2026-01-18 parsec-numeric-0.1.0.0 Parsec combinators for parsing Haskell numeric types
nightly-2026-01-18 ParsecTools-0.0.2.0 Parsec combinators for more complex objects
lts-5.18 parseerror-eq-0.1.0.1 Adds and Eq instance for Parsec's ParseError if needed
nightly-2026-01-18 parser-combinators-1.3.1 Lightweight package providing commonly useful parser combinators
nightly-2026-01-18 parser-combinators-tests-1.3.1 Test suite of parser-combinators
nightly-2026-01-18 parser-regex-0.3.0.0 Regex based parsers
nightly-2026-01-18 parsers-0.12.12 Parsing combinators
nightly-2026-01-18 partial-handler-1.0.3 A composable exception handler
nightly-2026-01-18 partial-isomorphisms-0.2.4.0 Partial isomorphisms
nightly-2026-01-18 partialord-0.1.1 Data structure supporting partial orders
lts-23.28 partial-order-0.2.0.0 Provides typeclass suitable for types admitting a partial order
lts-22.44 partial-semigroup-0.6.0.2 A partial binary associative operator
nightly-2026-01-18 password-3.1.0.1 Hashing and checking of passwords
nightly-2026-01-18 password-instances-3.0.0.0 typeclass instances for password package
nightly-2026-01-18 password-types-1.0.0.0 Types for handling passwords
lts-20.11 pasta-curves-0.0.1.0 Provides the Pasta curves: Pallas, Vesta and their field elements Fp and Fq
lts-9.21 patat-0.5.2.2 Terminal-based presentations using Pandoc
nightly-2026-01-18 patch-0.0.8.4 Data structures for describing changes to other data structures
lts-6.35 patches-vector-0.1.5.4 Patches (diffs) on vectors: composable, mergeable, and invertible
nightly-2026-01-18 path-0.9.6 Support for well-typed paths
nightly-2026-01-18 path-binary-instance-0.1.0.1 Binary instance for Path
nightly-2026-01-18 path-dhall-instance-0.2.1.0 ToDhall and FromDhall instances for Path
nightly-2026-01-18 path-extensions-0.1.1.0 Enumeration of common filetype extensions for use with the path library
nightly-2026-01-18 path-extra-0.3.1 URLs without host information
lts-20.26 path-formatting-0.1.0.0 Formatting for path
nightly-2026-01-18 path-io-1.8.2 Interface to ‘directory’ package for users of ‘path’
nightly-2026-01-18 path-like-0.2.0.2 PathLike, FileLike and DirLike type classes for the Path library
nightly-2026-01-18 path-pieces-0.2.1 Components of paths
lts-21.25 path-text-utf8-0.0.1.12 Read and write UTF-8 text files
nightly-2026-01-18 pathtype-0.8.1.3 Type-safe replacement for System.FilePath etc
nightly-2026-01-18 path-utils-0.1.1.0 Handful of simple utility functions for the path library
nightly-2026-01-18 pathwalk-0.3.1.2 Path walking utilities for Haskell programs
nightly-2026-01-18 patience-0.3 Patience diff and longest increasing subsequence
nightly-2026-01-18 patrol-1.2.0.3 Sentry SDK
lts-21.25 pattern-arrows-0.0.2 Arrows for Pretty Printing
nightly-2026-01-18 pava-0.1.1.4 Greatest convex majorants and least concave minorants
lts-7.24 pbkdf-1.1.1.1 Haskell implementation of the PBKDF functions from RFC-2898
lts-6.35 pcap-0.4.5.2 A system-independent interface for user-level packet capture
lts-22.44 pcf-font-0.2.2.1 PCF font parsing and rendering library
lts-14.26 pcf-font-embed-0.1.2.0 Template Haskell for embedding text rendered using PCF fonts
nightly-2026-01-18 pcg-random-0.1.4.0 Haskell bindings to the PCG random number generator
nightly-2026-01-18 pcre2-2.3.0 Regular expressions via the PCRE2 C library (included)
nightly-2026-01-18 pcre-heavy-1.0.0.4 A regexp (regex) library on top of pcre-light you can actually use
nightly-2026-01-18 pcre-light-0.4.1.3 Portable regex library for Perl 5 compatible regular expressions
nightly-2026-01-18 pcre-utils-0.1.9 Perl-like substitute and split for PCRE regexps
lts-24.28 pdc-0.1.1 Fedora Product Definition Center service
lts-19.33 pdfinfo-1.5.4 Wrapper around the pdfinfo command
lts-24.28 pdf-toolbox-content-0.1.2 A collection of tools for processing PDF files
lts-24.28 pdf-toolbox-core-0.1.3 A collection of tools for processing PDF files
lts-24.28 pdf-toolbox-document-0.1.4 A collection of tools for processing PDF files
nightly-2026-01-18 peano-0.1.1.0 Peano numbers
lts-24.28 pedersen-commitment-0.2.0 An implementation of Pedersen commitment schemes
lts-11.22 pell-0.1.1.0 Package to solve the Generalized Pell Equation
nightly-2026-01-18 pem-0.2.4 Privacy Enhanced Mail (PEM) format reader and writer
lts-14.27 pencil-1.0.1 Static site generator
nightly-2026-01-18 percent-format-0.0.4 simple printf-style string formatting
lts-22.44 peregrin-0.4.2 Database migration support for use in other libraries
nightly-2026-01-18 perf-0.14.2.1 Performance tools
nightly-2026-01-18 perfect-hash-generator-1.0.0 Perfect minimal hashing implementation in native Haskell
lts-18.28 perfect-vector-shuffle-0.1.1.1 Library for performing vector shuffles
nightly-2016-04-26 permutation-0.5.0.5 A library for permutations and combinations
nightly-2026-01-18 persist-1.0.0.0 Minimal serialization library with focus on performance
nightly-2026-01-18 persistable-record-0.6.0.6 Binding between SQL database values and haskell records
lts-24.28 persistable-types-HDBC-pg-0.0.3.5 HDBC and Relational-Record instances of PostgreSQL extended types
nightly-2026-01-18 persistent-2.18.1.0 Type-safe, multi-backend data serialization
nightly-2026-01-18 persistent-discover-0.1.0.7 Persistent module discover utilities
nightly-2026-01-18 persistent-documentation-0.1.0.6 Documentation DSL for persistent entities
lts-22.44 persistent-iproute-0.2.5 Persistent instances for types in iproute
nightly-2026-01-18 persistent-lens-1.0.0 lens helpers for persistent
lts-24.28 persistent-mongoDB-2.13.1.0 Backend for the persistent library using mongoDB
nightly-2026-01-18 persistent-mtl-0.5.2 Monad transformer for the persistent API
lts-24.28 persistent-mysql-2.13.1.5 Backend for the persistent library using MySQL database server
lts-14.27 persistent-mysql-haskell-0.5.2 A pure haskell backend for the persistent library using MySQL database server
nightly-2026-01-18 persistent-pagination-0.1.1.2 Efficient and correct pagination for persistent or esqueleto queries
nightly-2026-01-18 persistent-postgresql-2.14.3.0 Backend for the persistent library using postgresql
nightly-2026-01-18 persistent-qq-2.12.0.7 Provides a quasi-quoter for raw SQL for persistent
nightly-2026-01-18 persistent-redis-2.13.0.2 Backend for persistent library using Redis
lts-21.25 persistent-refs-0.4 Haskell references backed by an IntMap for persistence and reversibility
nightly-2026-01-18 persistent-sqlite-2.13.3.1 Backend for the persistent library using sqlite3
nightly-2026-01-18 persistent-template-2.12.0.0 Type-safe, non-relational, multi-backend persistence
nightly-2026-01-18 persistent-test-2.13.2.1 Tests for Persistent
nightly-2026-01-18 persistent-typed-db-0.1.0.7 Type safe access to multiple database schemata
lts-23.28 pfile-0.1.0.1 CLI program for profiles management
nightly-2026-01-18 pg-harness-client-0.6.0 Client library for pg-harness-server
lts-14.27 pg-harness-server-0.6.2 REST service for creating temporary PostgreSQL databases
lts-21.25 pgp-wordlist-0.1.0.3 Translate between binary data and a human-readable collection of words
nightly-2026-01-18 pg-transact-0.3.2.0 A postgresql-simple transaction monad
nightly-2026-01-18 phantom-state-0.2.1.5 Phantom State Transformer. Like State Monad, but without values
lts-5.18 phash-0.0.5 Haskell bindings to pHash, the open source perceptual hash library
lts-23.28 phatsort-0.6.0.0 FAT filesystem sort utility
lts-11.22 picedit-0.2.3.0 simple image manipulation functions
lts-11.22 picoparsec-0.1.2.3 Fast combinator parsing for bytestrings and text
lts-21.25 picosat-0.1.6 Bindings to the PicoSAT solver
nightly-2026-01-18 pid1-0.1.3.1 Do signal handling and orphan reaping for Unix PID1 init processes
nightly-2018-09-28 pier-0.3.0.0 Yet another Haskell build system
nightly-2018-09-28 pier-core-0.3.0.0 A library for writing forwards-declared build systems in haskell
lts-18.28 pinboard-0.10.2.0 Access to the Pinboard API
nightly-2026-01-18 pinch-0.5.2.0 An alternative implementation of Thrift for Haskell
lts-9.21 pinchot-0.24.0.0 Write grammars, not parsers
nightly-2026-01-18 pinecone-1.0.0 Servant bindings to Pinecone
nightly-2026-01-18 pipes-4.3.16 Compositional pipelines
nightly-2026-01-18 pipes-aeson-0.4.2 Encode and decode JSON streams using Aeson and Pipes
nightly-2026-01-18 pipes-attoparsec-0.6.0 Attoparsec and Pipes integration
lts-6.35 pipes-bgzf-0.2.0.1 Blocked GZip
nightly-2026-01-18 pipes-binary-0.4.4 Encode and decode binary streams using the pipes and binary libraries
nightly-2026-01-18 pipes-bytestring-2.1.7 ByteString support for pipes
lts-9.21 pipes-cacophony-0.5.0 Pipes for Noise-secured network connections
lts-14.26 pipes-category-0.3.0.0 Allows instances for Category, Arrow and ArrowChoice for Pipes
lts-7.24 pipes-cliff-0.12.0.0 Streaming to and from subprocesses using Pipes
nightly-2026-01-18 pipes-concurrency-2.0.14 Concurrency for the pipes ecosystem
nightly-2026-01-18 pipes-csv-1.4.3 Fast, streaming csv parser
nightly-2026-01-18 pipes-extras-1.0.15 Extra utilities for pipes
nightly-2026-01-18 pipes-fastx-0.3.0.0 Streaming parsers for Fasta and Fastq
nightly-2026-01-18 pipes-fluid-0.6.0.1 Reactively combines Producers so that a value is yielded as soon as possible
nightly-2026-01-18 pipes-group-1.0.12 Group streams into substreams
nightly-2026-01-18 pipes-http-1.0.6 HTTP client with pipes interface
lts-6.35 pipes-illumina-0.1.0.0 Illumina NGS data processing
lts-14.26 pipes-misc-0.5.0.0 Miscellaneous utilities for pipes, required by glazier-tutorial
lts-24.28 pipes-mongodb-0.1.0.0 Stream results from MongoDB
lts-18.28 pipes-network-0.6.5 Use network sockets together with the pipes library
lts-18.28 pipes-network-tls-0.4 TLS-secured network connections support for pipes
nightly-2026-01-18 pipes-ordered-zip-1.2.1 merge two ordered Producers into a new Producer
nightly-2026-01-18 pipes-parse-3.0.9 Parsing infrastructure for the pipes ecosystem
nightly-2026-01-18 pipes-random-1.0.0.5 Producers for handling randomness
nightly-2026-01-18 pipes-safe-2.3.5 Safety for the pipes ecosystem
lts-22.44 pipes-text-1.0.1 properly streaming text
lts-6.35 pipes-transduce-0.4 Interfacing pipes with foldl folds
nightly-2026-01-18 pipes-wai-3.2.0 A port of wai-conduit for the pipes ecosystem
nightly-2026-01-18 pipes-zlib-0.4.4.2 Zlib and GZip compression and decompression for Pipes streams
lts-11.22 pixelated-avatar-generator-0.1.3 A library and application for generating pixelated avatars
lts-18.28 pkcs10-0.2.0.0 PKCS#10 library
nightly-2026-01-18 pkgtreediff-0.6.0 RPM package tree diff tool
nightly-2026-01-18 place-cursor-at-1.0.1 A utility for X11 that moves the mouse cursor using the keyboard
nightly-2026-01-18 placeholders-0.1 Placeholders for use while developing Haskell code
nightly-2026-01-18 plaid-0.1.0.4 Plaid.com api integration library
lts-10.10 plan-b-0.2.1 Failure-tolerant file and directory editing
lts-16.31 planb-token-introspection-0.1.4.0 Token Introspection for PlanB
lts-24.28 plot-0.2.3.12 A plotting library, exportable as eps/pdf/svg/png or renderable with gtk
lts-9.21 plot-gtk-0.2.0.4 GTK plots and interaction with GHCi
lts-9.21 plot-gtk3-0.1.0.2 GTK3 plots and interaction with GHCi
lts-9.21 plot-gtk-ui-0.3.0.2 A quick way to use Mathematica like Manipulation abilities
lts-12.26 plot-light-0.4.3 A lightweight plotting library, exporting to SVG
nightly-2026-01-18 plotlyhs-0.2.3 Haskell bindings to Plotly.js
nightly-2026-01-18 Plural-0.0.2 Pluralize English words
nightly-2026-01-18 pointed-5.0.5 Pointed and copointed data
nightly-2026-01-18 pointedlist-0.6.1 A zipper-like comonad which works as a list, tracking a position
lts-10.10 pointful-1.0.9 Pointful refactoring tool
nightly-2026-01-18 pointless-fun-1.1.0.8 Some common point-free combinators
lts-9.21 point-octree-0.5.5.3 Point octree, with bounding boxes
nightly-2026-01-18 poll-0.0.0.2 Bindings to poll.h
lts-18.28 polling-cache-0.1.1.0 Cache infrequently updated data for simpler distributed systems
nightly-2026-01-18 poly-0.5.1.0 Polynomials
nightly-2026-01-18 poly-arity-0.1.0 Tools for working with functions of undetermined arity
nightly-2026-01-18 polynomials-bernstein-1.1.2 A solver for systems of polynomial equations in bernstein form
nightly-2026-01-18 polyparse-1.13.1 A variety of alternative parser combinator libraries
nightly-2026-01-18 polysemy-1.9.2.0 Higher-order, low-boilerplate free monads
lts-20.26 polysemy-extra-0.2.1.0 Extra Input and Output functions for polysemy
nightly-2026-01-18 polysemy-fs-0.1.0.0 Low level filesystem operations for polysemy
nightly-2023-04-24 polysemy-fskvstore-0.1.2.0 Run a KVStore as a filesystem in polysemy
lts-20.26 polysemy-kvstore-0.1.3.0 KVStore effect for polysemy
nightly-2022-02-07 polysemy-kvstore-jsonfile-0.1.1.0 Run a KVStore as a single json file in polysemy
lts-20.26 polysemy-methodology-0.2.2.0 Domain modelling algebra for polysemy
lts-19.33 polysemy-path-0.2.1.0 Polysemy versions of Path functions
nightly-2026-01-18 polysemy-plugin-0.4.5.3 Disambiguate obvious uses of effects
lts-20.26 polysemy-several-0.1.1.0 Run several effects at once, taken from the polysemy-zoo
lts-19.33 polysemy-socket-0.0.2.0 Socket effect for polysemy
nightly-2023-04-24 polysemy-uncontrolled-0.1.1.1 Uncontrolled toy effect for polysemy
lts-19.33 polysemy-video-0.2.0.1 Experimental video processing DSL for polysemy
lts-19.33 polysemy-vinyl-0.1.5.0 Functions for mapping vinyl records in polysemy
nightly-2026-01-18 polysemy-webserver-0.2.1.2 Start web servers from within a Polysemy effect stack
lts-20.26 polysemy-zoo-0.8.1.0 Experimental, user-contributed effects and interpreters for polysemy
lts-11.22 pomaps-0.0.1.0 Maps and sets of partial orders
lts-24.28 pontarius-xmpp-0.5.7.2 An XMPP client library
lts-24.28 pontarius-xmpp-extras-0.1.0.12 XEPs implementation on top of pontarius-xmpp
nightly-2026-01-18 poolboy-0.5.0.0 Simple work queue for bounded concurrency
lts-1.15 pool-conduit-0.1.2.3 Resource pool allocations via ResourceT. (deprecated)
nightly-2026-01-18 pooled-io-0.0.2.3 Run jobs on a limited number of threads and support data dependencies
nightly-2026-01-18 portable-lines-0.1 Alternative 'lines' implementation that understands CR-LF and CR
lts-11.22 PortMidi-0.1.6.1 A binding for PortMedia/PortMidi
nightly-2026-01-18 port-utils-0.2.1.0 Utilities for creating and waiting on ports
nightly-2026-01-18 posix-paths-0.3.0.0 POSIX filepath/directory functionality
nightly-2026-01-18 posix-pty-0.2.2 Pseudo terminal interaction with subprocesses
lts-9.21 posix-realtime-0.0.0.4 POSIX Realtime functionality
nightly-2026-01-18 possibly-1.0.0.0 type Possibly a = Either String a
nightly-2026-01-18 postgres-options-0.2.2.0 An Options type representing options for postgres connections
nightly-2026-01-18 postgresql-binary-0.14.2 Encoders and decoders for the PostgreSQL's binary format
nightly-2026-01-18 postgresql-connection-string-0.1.0.5 PostgreSQL connection string type, parser and builder
nightly-2026-01-18 postgresql-libpq-0.11.0.0 low-level binding to libpq
nightly-2026-01-18 postgresql-libpq-configure-0.11 low-level binding to libpq: configure based provider
nightly-2026-01-18 postgresql-libpq-notify-0.2.0.0 Minimal dependency PostgreSQL notifications library
nightly-2026-01-18 postgresql-migration-0.2.1.8 PostgreSQL Schema Migrations
lts-19.33 postgresql-orm-0.5.1 An ORM (Object Relational Mapping) and migrations DSL for PostgreSQL
lts-22.44 postgresql-query-3.10.0 Sql interpolating quasiquote plus some kind of primitive ORM using it
nightly-2026-01-18 postgresql-schema-0.1.14 PostgreSQL Schema Management
nightly-2026-01-18 postgresql-simple-0.7.0.1 Mid-Level PostgreSQL client library
nightly-2026-01-18 postgresql-simple-interval-1.0.1.2 A simple interval type for PostgreSQL
lts-14.26 postgresql-simple-migration-0.1.15.0 PostgreSQL Schema Migrations
lts-9.21 postgresql-simple-opts-0.2.0.2 An optparse-applicative parser for postgresql-simple's connection options
lts-14.27 postgresql-simple-queue-1.0.1 A PostgreSQL backed queue
lts-23.28 postgresql-simple-url-0.2.1.0 Parse postgres:// url into ConnectInfo
nightly-2026-01-18 postgresql-syntax-0.4.2 PostgreSQL AST parsing and rendering
lts-14.27 postgresql-transactional-1.1.1 a transactional monad on top of postgresql-simple
lts-24.28 postgresql-typed-0.6.2.5 PostgreSQL interface with compile-time SQL type checking, optional HDBC backend
lts-18.28 postgrest-7.0.1 REST API for any Postgres database
nightly-2026-01-18 post-mess-age-0.2.1.0 Send messages to a handle concurrently without getting them mixed
nightly-2026-01-18 ppad-base16-0.2.1 Pure base16 encoding and decoding on bytestrings
nightly-2026-01-18 ppad-bech32-0.2.4 bech32 and bech32m encoding/decoding, per BIPs 173 & 350
nightly-2026-01-18 ppad-chacha-0.2.1 A pure ChaCha20 stream cipher
nightly-2026-01-18 ppad-fixed-0.1.3 Large fixed-width words and constant-time arithmetic
nightly-2026-01-18 ppad-poly1305-0.4.1 A pure Poly1305 MAC
nightly-2026-01-18 ppad-ripemd160-0.1.4 The RIPEMD-160 hashing algorithm
nightly-2026-01-18 ppad-script-0.2.2 Primitive Script support
nightly-2026-01-18 pptable-0.3.0.0 Pretty Print containers in a tabular format
nightly-2026-01-18 pqueue-1.6.0.0 Reliable, persistent, fast priority queues
nightly-2026-01-18 prairie-0.1.1.0 A first class record field library
lts-9.21 prednote-0.36.0.4 Evaluate and display trees of predicates
nightly-2026-01-18 pred-set-0.0.1 Simple cached predicates
lts-11.22 pred-trie-0.5.1.2 Predicative tries
nightly-2026-01-18 prefix-units-0.3.0.1 A basic library for SI/IEC prefix units
nightly-2026-01-18 prelude-compat-0.0.0.2 Provide Prelude and Data.List with fixed content across GHC versions
lts-12.26 prelude-extras-0.4.0.3 Higher order versions of Prelude classes
nightly-2026-01-18 prelude-safeenum-0.1.1.3 A redefinition of the Prelude's Enum class in order to render it safe
lts-11.22 preprocessor-tools-1.0.1 A framework for extending Haskell's syntax via quick-and-dirty preprocessors
lts-5.16 presburger-1.3.1 A decision procedure for quantifier-free linear arithmetic
lts-14.26 present-4.1.0 Make presentations for data types
nightly-2026-01-17 pretty-1.1.3.6 Pretty-printing library
nightly-2026-01-18 prettychart-0.3.0.3 Pretty print charts from ghci
nightly-2026-01-18 pretty-class-1.0.1.1 Pretty printing class similar to Show
nightly-2026-01-18 prettyclass-1.0.0.0 Pretty printing class similar to Show
nightly-2016-03-07 pretty-compact-1.0 Pretty-printing library
lts-20.26 pretty-diff-0.4.0.3 Pretty printing a diff of two values
nightly-2026-01-18 pretty-hex-1.1 A library for hex dumps of ByteStrings
nightly-2026-01-18 prettyprinter-1.7.1 A modern, easy to use, well-documented, extensible pretty-printer
nightly-2026-01-18 prettyprinter-ansi-terminal-1.1.3 ANSI terminal backend for the »prettyprinter« package
nightly-2026-01-18 prettyprinter-combinators-0.1.3 Some useful combinators for the prettyprinter package
nightly-2026-01-18 prettyprinter-compat-annotated-wl-pprint-1.1 Drop-in compatibility package to migrate from »annotated-wl-pprint« to »prettyprinter«
nightly-2026-01-18 prettyprinter-compat-ansi-wl-pprint-1.0.2 Drop-in compatibility package to migrate from »ansi-wl-pprint« to »prettyprinter«
nightly-2026-01-18 prettyprinter-compat-wl-pprint-1.0.1 Drop-in compatibility package to migrate from »wl-pprint« to »prettyprinter«
lts-21.25 prettyprinter-convert-ansi-wl-pprint-1.1.2 Converter from »ansi-wl-pprint« documents to »prettyprinter«-based ones
nightly-2026-01-18 prettyprinter-interp-0.2.0.0 Efficient interpolation for Prettyprinter
nightly-2026-01-18 pretty-relative-time-0.3.0.0 Pretty relative time
nightly-2026-01-18 pretty-show-1.10 Tools for working with derived `Show` instances and generic inspection of values
nightly-2026-01-18 pretty-simple-4.1.4.0 pretty printer for data types with a 'Show' instance
nightly-2026-01-18 pretty-sop-0.2.0.3 A generic pretty-printer using generics-sop
nightly-2026-01-18 pretty-terminal-0.1.0.0 Styling and coloring terminal output with ANSI escape sequences
lts-21.25 pretty-types-0.4.0.0 A small pretty printing DSL for complex types
lts-11.12 prim-array-0.2.2 Primitive byte array with type variable
nightly-2026-01-18 primecount-0.1.0.2 Bindings to the primecount library
nightly-2026-01-18 primes-0.2.1.0 Efficient, purely functional generation of prime numbers
nightly-2026-01-18 primitive-0.9.1.0 Primitive memory-related operations
nightly-2026-01-18 primitive-addr-0.1.0.3 Addresses to unmanaged memory
lts-19.33 PrimitiveArray-0.10.1.1 Efficient multidimensional arrays
nightly-2026-01-18 primitive-extras-0.10.2.2 Extras for the "primitive" library
nightly-2026-01-18 primitive-offset-0.2.0.1 Types for offsets into unboxed arrays
nightly-2026-01-18 primitive-serial-0.1 Serialisation of primitive types
nightly-2026-01-18 primitive-unaligned-0.1.1.2 Unaligned access to primitive arrays
nightly-2026-01-18 primitive-unlifted-2.2.0.0 Primitive GHC types with unlifted types inside
nightly-2026-01-18 prim-uniq-0.2 Opaque unique identifiers in primitive state monads
lts-10.10 printcess-0.1.0.3 Pretty printing with indentation, mixfix operators, and automatic line breaks
nightly-2026-01-18 print-console-colors-0.1.0.0 Print all ANSI console colors
nightly-2026-01-18 probability-0.2.8 Probabilistic Functional Programming
nightly-2026-01-18 probability-polynomial-1.0.1.0 Probability distributions via piecewise polynomials
lts-24.28 process-1.6.26.1 Process libraries
nightly-2015-03-30 process-conduit-1.2.0.1 Conduits for processes (deprecated)
nightly-2026-01-18 process-extras-0.7.4 Process extras
lts-6.35 process-streaming-0.9.1.2 Streaming interface to system processes.
nightly-2026-01-18 product-isomorphic-0.0.3.4 Weaken applicative functor on products
nightly-2026-01-18 product-profunctors-0.11.1.1 product-profunctors
lts-21.25 profiterole-0.1 Restructure GHC profile reports
lts-20.26 profiteur-0.4.6.1 Treemap visualiser for GHC prof files
lts-10.10 profunctor-extras-4.0 This package has been absorbed into profunctors 4.0
nightly-2026-01-18 profunctors-5.6.3 Profunctors
nightly-2026-01-18 projectroot-0.2.0.1 Bindings to the projectroot C logic
nightly-2026-01-18 project-template-0.2.1.0 Specify Haskell project templates and generate files
nightly-2026-01-18 prometheus-2.3.0 Prometheus Haskell Client
nightly-2026-01-18 prometheus-client-1.1.1 Haskell client library for http://prometheus.io
nightly-2026-01-18 prometheus-metrics-ghc-1.0.1.2 Metrics exposing GHC runtime information for use with prometheus-client
lts-20.26 prometheus-wai-middleware-1.0.1.0 Instrument a wai application with various metrics
nightly-2026-01-18 promises-0.3 Lazy demand-driven promises
lts-21.25 prompt-0.1.1.2 Monad (and transformer) for deferred-effect pure prompt-response queries
nightly-2026-01-18 prompt-hs-1.1.0.2 A user-friendly, dependently-typed library for asking your users questions
nightly-2026-01-18 prospect-0.1.0.0 Explore continuations with trepidation
lts-18.28 proto3-wire-1.2.2 A low-level implementation of the Protocol Buffers (version 3) wire format
nightly-2026-01-18 protobuf-0.2.1.3 Google Protocol Buffers via GHC.Generics
nightly-2026-01-18 protobuf-simple-0.1.1.1 Simple Protocol Buffers library (proto2)
lts-19.33 protocol-buffers-2.4.17 Parse Google Protocol Buffer specifications
lts-19.33 protocol-buffers-descriptor-2.4.17 Text.DescriptorProto.Options and code generated from the Google Protocol Buffer specification
nightly-2026-01-18 protocol-radius-0.0.1.2 parser and printer for radius protocol packet
nightly-2026-01-18 protocol-radius-test-0.1.0.1 testsuit of protocol-radius haskell package
lts-24.28 proto-lens-0.7.1.6 A lens-based implementation of protocol buffers in Haskell
lts-23.28 proto-lens-arbitrary-0.1.2.14 Arbitrary instances for proto-lens
lts-13.30 proto-lens-combinators-0.4.0.1 Utilities functions to proto-lens
lts-11.22 proto-lens-descriptors-0.2.2.0 Protocol buffers for describing the definitions of messages
lts-24.28 proto-lens-optparse-0.1.1.13 Adapting proto-lens to optparse-applicative ReadMs
lts-24.28 proto-lens-protobuf-types-0.7.2.2 Basic protocol buffer message types
lts-24.28 proto-lens-protoc-0.9.0.0 Protocol buffer compiler for the proto-lens library
lts-24.28 proto-lens-runtime-0.7.0.7
lts-24.28 proto-lens-setup-0.4.0.9 Cabal support for codegen with proto-lens
nightly-2026-01-18 protolude-0.3.5 A small prelude
nightly-2026-01-18 proxied-0.3.2 Make functions consume Proxy instead of undefined
nightly-2016-04-20 psc-ide-0.6.1 Language support for the PureScript programming language
nightly-2026-01-18 pseudo-boolean-0.1.12.0 Reading/Writing OPB/WBO files used in pseudo boolean competition
nightly-2026-01-18 psql-helpers-0.1.0.0 A small collection of helper functions to generate postgresql queries
nightly-2026-01-18 PSQueue-1.2.2 Priority Search Queue
nightly-2026-01-18 psqueues-0.2.8.3 Pure priority search queues
nightly-2026-01-18 pthread-0.2.1 Bindings for the pthread library
nightly-2026-01-18 ptr-0.16.8.7 Experimental abstractions for operations on pointers
nightly-2026-01-18 ptr-poker-0.1.2.16 Pointer poking action construction and composition toolkit
lts-18.28 publicsuffix-0.20200526 The publicsuffix list exposed as proper Haskell types
lts-2.22 publicsuffixlist-0.1 Is a given string a domain suffix?
nightly-2017-01-17 pugixml-0.3.3 pugixml binding
nightly-2026-01-18 pulse-simple-0.1.14 binding to Simple API of pulseaudio
lts-2.22 punycode-2.0 Encode unicode strings to ascii forms according to RFC 3492
lts-8.24 pure-cdb-0.1.2 Another pure-haskell CDB (Constant Database) implementation
lts-11.22 pure-io-0.2.1 Pure IO monad
nightly-2026-01-18 pureMD5-2.1.4 A Haskell-only implementation of the MD5 digest (hash) algorithm
lts-24.28 puresat-0.1 Pure Haskell SAT-solver
lts-7.24 purescript-0.9.3 PureScript Programming Language Compiler
nightly-2026-01-18 purescript-bridge-0.15.0.0 Generate PureScript data types from Haskell data types
lts-14.26 pure-zlib-0.6.7 A Haskell-only implementation of zlib / DEFLATE
lts-22.44 purview-0.2.0.2 A simple, fun way to build websites
lts-18.28 pushbullet-types-0.4.1.0 Datatypes used by the Pushbullet APIs
nightly-2026-01-18 pusher-http-haskell-2.1.0.21 Haskell client library for the Pusher Channels HTTP API
nightly-2026-01-18 pvar-1.0.0.0 Mutable variable with primitive values
lts-24.28 pwstore-fast-2.4.4 Secure password storage
lts-8.24 pwstore-purehaskell-2.1.4 Secure password storage, in pure Haskell
nightly-2026-01-18 PyF-0.11.5.0 Quasiquotations for a python like interpolated string formatter
nightly-2026-01-18 qchas-1.1.0.1 A library for implementing Quantum Algorithms
lts-22.44 qm-interpolated-string-0.3.1.0 Implementation of interpolated multiline strings
lts-14.27 qnap-decrypt-0.3.5 Decrypt files encrypted by QNAP's Hybrid Backup Sync
lts-22.44 qrcode-core-0.9.10 QR code library in pure Haskell
lts-22.44 qrcode-juicypixels-0.8.6 Converts a qrcode-core image to JuicyPixels
lts-24.28 quaalude-0.0.0.1 Extremely minimal prelude
nightly-2026-01-18 quadratic-irrational-0.1.2 An implementation of quadratic irrationals
lts-6.35 quandl-api-0.2.1.0 Quandl.com API library
nightly-2026-01-18 quantizer-0.4.0.0 Library to provide the behaviour similar to quantum states superposition.
lts-7.24 quantum-random-0.6.4 Retrieve, store and manage real quantum random data
nightly-2026-01-18 QuasiText-0.1.2.6 A QuasiQuoter for Text
lts-9.21 questioner-0.1.1.0 A package for prompting values from the command-line
nightly-2026-01-18 queues-1.0.0 Queue data structures
nightly-2026-01-18 queue-sheet-0.8.0.1 queue sheet utility
nightly-2026-01-18 quic-0.2.21 QUIC
nightly-2026-01-18 quickbench-1.0.1 quick & easy benchmarking of command-line programs
nightly-2026-01-18 QuickCheck-2.16.0.0 Automatic testing of Haskell programs
nightly-2026-01-18 quickcheck-arbitrary-adt-0.3.1.0 Generic typeclasses for generating arbitrary ADTs
nightly-2019-09-21 quickcheck-arbitrary-template-0.2.1.0 Generate QuickCheck Gen for Sum Types
nightly-2026-01-18 quickcheck-assertions-0.3.0 HUnit like assertions for QuickCheck
nightly-2026-01-18 quickcheck-classes-0.6.5.0 QuickCheck common typeclasses
nightly-2026-01-18 quickcheck-classes-base-0.6.2.0 QuickCheck common typeclasses from `base`
nightly-2026-01-18 quickcheck-combinators-0.0.6 Simple type-level combinators for augmenting QuickCheck instances
nightly-2026-01-18 quickcheck-dynamic-4.0.1 A library for stateful property-based testing
nightly-2026-01-18 quickcheck-groups-0.0.1.5 Testing group class instances with QuickCheck
nightly-2026-01-18 quickcheck-higherorder-0.1.0.1 QuickCheck extension for higher-order properties
nightly-2026-01-18 quickcheck-instances-0.3.33 Common quickcheck instances
nightly-2026-01-18 quickcheck-io-0.2.0 Use HUnit assertions as QuickCheck properties
nightly-2026-01-18 quickcheck-monoid-subclasses-0.3.0.6 Testing monoid subclass instances with QuickCheck
lts-11.22 quickcheck-properties-0.1 QuickCheck properties for standard type classes
nightly-2026-01-18 quickcheck-quid-0.0.1.8 Quasi-unique identifiers for QuickCheck
lts-3.22 QuickCheck-safe-0.1.0.1 Safe reimplementation of QuickCheck's core
nightly-2026-01-18 quickcheck-simple-0.1.1.1 Test properties and default-mains for QuickCheck
nightly-2026-01-18 quickcheck-special-0.1.0.6 Edge cases and special values for QuickCheck Arbitrary instances
lts-24.28 quickcheck-state-machine-0.10.2 Test monadic programs using state machine based models
nightly-2026-01-18 quickcheck-text-0.1.2.1 Alternative arbitrary instance for Text
nightly-2026-01-18 quickcheck-transformer-0.3.1.2 A GenT monad transformer for QuickCheck library
nightly-2026-01-18 quickcheck-unicode-1.0.1.0 Generator and shrink functions for testing Unicode-related software
lts-11.22 quickcheck-with-counterexamples-1.0 Get counterexamples from QuickCheck as Haskell values
nightly-2026-01-18 quicklz-1.5.0.11 QuickLZ compression for ByteStrings
lts-1.15 quickpull-0.4.2.2 Generate Main module with QuickCheck tests
nightly-2026-01-18 quic-simple-0.1.1.0 Quick-start wrappers for QUIC
nightly-2026-01-18 quiet-0.2 Generic deriving of Read/Show with no record labels
nightly-2026-01-18 quote-quot-0.2.1.0 Divide without division
nightly-2019-09-21 raaz-0.2.1 The raaz cryptographic library
lts-24.28 radius-0.7.1.0 Remote Authentication Dial In User Service (RADIUS)
nightly-2026-01-18 radix-tree-1.1.0.0 Radix trees
nightly-2026-01-18 rainbow-0.34.2.2 Print text to terminal with colors and effects
lts-1.15 rainbow-tests-0.20.0.4 Tests and QuickCheck generators to accompany rainbow
nightly-2026-01-18 rainbox-0.26.0.0 Two-dimensional box pretty printing, with colors
lts-12.26 rakuten-0.1.1.5 The Rakuten API in Haskell
lts-24.28 ral-0.2.2 Random access lists
nightly-2026-01-18 rampart-2.0.0.13 Determine how intervals relate to each other
nightly-2026-01-18 ramus-0.1.2 Elm signal system for Haskell
nightly-2026-01-18 rando-0.0.0.4 Easy-to-use randomness for livecoding
nightly-2026-01-18 random-1.3.1 Pseudo-random number generation
nightly-2026-01-18 random-bytestring-0.1.4 Efficient generation of random bytestrings
lts-24.28 random-fu-0.3.0.1 Random number generation
nightly-2026-01-18 random-shuffle-0.0.4 Random shuffle implementation
lts-19.33 random-source-0.3.0.11 Generic basis for random number generators
nightly-2026-01-18 random-tree-0.6.0.5 Create random trees
nightly-2026-01-18 range-0.3.0.2 An efficient and versatile range library
nightly-2026-01-18 ranged-list-0.1.2.3 The list like structure whose length or range of length can be specified
nightly-2026-01-18 Ranged-sets-0.5.0 Ranged sets for Haskell
nightly-2026-01-18 ranges-0.2.4 Ranges and various functions on them
lts-24.28 range-set-list-0.1.4 Memory efficient sets with ranges of elements
nightly-2026-01-18 rank1dynamic-0.4.3 Like Data.Dynamic/Data.Typeable but with support for rank-1 polymorphic types
nightly-2026-01-18 rank2classes-1.5.5.1 standard type constructor class hierarchy, only with methods of rank 2 types
lts-11.22 rank-product-0.2.0.1 Find the rank product of a data set
nightly-2026-01-18 Rasterific-0.7.5.4 A pure haskell drawing engine
nightly-2026-01-18 rasterific-svg-0.3.3.2 SVG renderer based on Rasterific
nightly-2026-01-18 ratel-2.0.0.17 Notify Honeybadger about exceptions
nightly-2026-01-18 rate-limit-1.4.3 A basic library for rate-limiting IO actions
nightly-2026-01-18 ratel-wai-2.0.0.12 Notify Honeybadger about exceptions via a WAI middleware
nightly-2026-01-18 ratio-int-0.1.2 Fast specialisation of Data.Ratio for Int
nightly-2026-01-18 rattle-0.2 Forward build system, with caching and speculation
lts-24.28 rattletrap-14.1.4 Parse and generate Rocket League replays
lts-23.28 Rattus-0.5.1.1 A modal FRP language
nightly-2026-01-18 rawfilepath-1.1.1 Use RawFilePath instead of FilePath
nightly-2026-01-18 rawstring-qm-0.2.3.1 Simple raw string quotation and dictionary interpolation
nightly-2026-01-18 raw-strings-qq-1.1 Raw string literals for Haskell
nightly-2026-01-18 rcu-0.2.7 Read-Copy-Update for Haskell
nightly-2026-01-18 rdf-0.1.0.8 Representation and Incremental Processing of RDF Data
nightly-2026-01-18 rdtsc-1.3.0.1 Binding for the rdtsc machine instruction
nightly-2026-01-18 re2-0.3 Bindings to the re2 regular expression library
nightly-2026-01-18 reactive-balsa-0.4.0.1 Programmatically edit MIDI events via ALSA and reactive-banana
nightly-2026-01-18 reactive-banana-1.3.2.0 Library for functional reactive programming (FRP)
nightly-2026-01-18 reactive-banana-bunch-1.0.0.1 Extend reactive-banana to multiple events per time point
nightly-2026-01-18 reactive-jack-0.4.1.2 Process MIDI events via reactive-banana and JACK
nightly-2026-01-18 reactive-midyim-0.4.1.1 Process MIDI events via reactive-banana
nightly-2026-01-18 readable-0.3.1 Reading from Text and ByteString
lts-9.21 ReadArgs-1.2.3 Simple command line argument parsing
nightly-2026-01-18 read-editor-0.1.0.2 Opens a temporary file on the system's EDITOR and returns the resulting edits
nightly-2026-01-18 read-env-var-1.0.0.0 Functions for safely reading environment variables
lts-9.21 readline-1.0.3.0 An interface to the GNU readline library
nightly-2026-01-18 real-dice-0.1.0.5 Random number generation based on physical media touched by humans
lts-18.28 reanimate-1.1.5.0 Animation library based on SVGs
nightly-2023-02-27 reanimate-svg-0.13.0.1 SVG file loader and serializer
nightly-2026-01-18 rebase-1.22 A more progressive alternative to the "base" package
nightly-2026-01-18 recaptcha-0.1.0.4 Functions for using the reCAPTCHA service in web applications
nightly-2026-01-18 rec-def-0.2.2 Recursively defined values
lts-23.28 record-dot-preprocessor-0.2.17 Preprocessor to allow record.field syntax
nightly-2026-01-18 record-hasfield-1.0.1 A version of GHC.Records as available in future GHCs
lts-22.44 records-sop-0.1.1.1 Record subtyping and record utilities with generics-sop
lts-19.33 record-wrangler-0.1.1.0 Alter your records with ease
nightly-2026-01-18 recover-rtti-0.5.3 Recover run-time type information from the GHC heap
lts-20.26 rec-smallarray-0.1.0.0 SmallArray-based extensible records for small-scale fast reads
nightly-2026-01-18 recursion-schemes-5.2.3 Representing common recursion patterns as higher-order functions
nightly-2026-01-18 recv-0.1.1 Efficient network recv
lts-24.28 redact-0.6.0.0 hide secret text on the terminal
nightly-2026-01-18 reddit-scrape-0.0.1 Library for getting links from a sub-reddit
nightly-2026-01-18 redis-glob-0.1.0.11 Specify valid redis globs
lts-19.33 redis-io-1.1.0 Yet another redis client
nightly-2026-01-18 redis-resp-1.0.0 REdis Serialization Protocol (RESP) implementation
nightly-2026-01-18 reducers-3.12.5 Semigroups, specialized containers and a general map/reduce framework
lts-8.24 reedsolomon-0.0.4.3 Reed-Solomon Erasure Coding in Haskell
nightly-2026-01-18 refact-0.3.0.2 Specify refactorings to perform with apply-refact
lts-14.27 references-0.3.3.1 Selectors for reading and updating data
nightly-2026-01-18 ref-fd-0.5.0.1 A type class for monads with references using functional dependencies
nightly-2026-01-18 refined-0.8.2 Refinement types with static and runtime checking
nightly-2026-01-18 refined-containers-0.1.2.0 Type-checked proof that a key exists in a container and can be safely indexed
lts-21.25 refinery-0.4.0.0 Toolkit for building proof automation systems
nightly-2026-01-18 reflection-2.1.9 Reifies arbitrary terms into types that can be reflected back into terms
nightly-2026-01-18 reflex-0.9.4.0 Higher-order Functional Reactive Programming
nightly-2026-01-18 reflex-dom-core-0.8.1.4 Functional Reactive Web Apps with Reflex
nightly-2026-01-18 reflex-fsnotify-0.3.0.2 Reflex FRP interface for watching files
nightly-2026-01-18 reflex-gadt-api-0.3.0.0 Interact with a GADT API in your reflex-dom application
nightly-2026-01-18 reform-0.2.7.6 reform is a type-safe HTML form generation and validation library
lts-21.25 reform-blaze-0.2.4.4 Add support for using blaze-html with Reform
lts-20.26 reform-hamlet-0.0.5.3 Add support for using Hamlet with Reform
nightly-2026-01-18 reform-happstack-0.2.5.8 Happstack support for reform
lts-20.26 reform-hsp-0.2.7.2 Add support for using HSP with Reform
nightly-2026-01-18 RefSerialize-0.4.0 Write to and read from ByteStrings maintaining internal memory references
nightly-2026-01-18 ref-tf-0.5.0.1 A type class for monads with references using type families
nightly-2026-01-18 regex-1.1.0.2 Toolkit for regex-base
nightly-2026-01-18 regex-applicative-0.3.4 Regex-based parsing with applicative interface
lts-21.25 regex-applicative-text-0.1.0.1 regex-applicative on text
nightly-2026-01-18 regex-base-0.94.0.3 Common "Text.Regex.*" API for Regex matching
nightly-2026-01-18 regex-compat-0.95.2.2 Replaces/enhances "Text.Regex"
lts-18.28 regex-compat-tdfa-0.95.1.4 Unicode Support version of Text.Regex, using regex-tdfa
nightly-2017-06-02 regex-examples-1.0.0.0 Tutorial, tests and example programs for regex
nightly-2026-01-18 regex-pcre-0.95.0.1 PCRE Backend for "Text.Regex" (regex-base)
nightly-2026-01-18 regex-pcre-builtin-0.95.2.3.8.44 PCRE Backend for "Text.Regex" (regex-base)
lts-14.27 regex-pcre-text-0.94.0.1 Text-based PCRE API for regex-base
nightly-2026-01-18 regex-posix-0.96.0.2 POSIX Backend for "Text.Regex" (regex-base)
nightly-2026-01-18 regex-posix-clib-2.7 "Regex for Windows" C library
lts-2.22 regexpr-0.5.4 regular expression like Perl/Ruby in Haskell
nightly-2026-01-18 regex-tdfa-1.3.2.5 Pure Haskell Tagged DFA Backend for "Text.Regex" (regex-base)
lts-6.35 regex-tdfa-rc-1.1.8.3 Replaces/Enhances Text.Regex
lts-14.27 regex-tdfa-text-1.0.0.3 Text interface for regex-tdfa
nightly-2026-01-18 regex-with-pcre-1.1.0.2 Toolkit for regex-base
nightly-2026-01-18 registry-0.6.3.3 data structure for assembling components
nightly-2026-01-18 registry-aeson-0.3.1.2 Aeson encoders / decoders
nightly-2026-01-18 registry-hedgehog-0.8.2.2 utilities to work with Hedgehog generators and `registry`
nightly-2026-01-18 registry-hedgehog-aeson-0.3.1.2 Hedgehog generators for Aeson
lts-20.26 registry-options-0.1.0.0 application options parsing
lts-23.28 regression-simple-0.2.1 Simple linear and quadratic regression
lts-2.22 regular-0.3.4.4 Generic programming library for regular datatypes
lts-2.22 regular-xmlpickler-0.2 Generic generation of HXT XmlPickler instances using Regular
nightly-2026-01-18 reinterpret-cast-0.1.0 Memory reinterpretation casts for Float/Double and Word32/Word64
nightly-2026-01-18 rel8-1.7.0.0 Hey! Hey! Can u rel8?
nightly-2026-01-18 relapse-1.0.0.1 Sensible RLP encoding
nightly-2026-01-18 relational-query-0.12.3.1 Typeful, Modular, Relational, algebraic query engine
lts-24.28 relational-query-HDBC-0.7.2.1 HDBC instance of relational-query and typed query interface for HDBC
lts-24.28 relational-record-0.2.2.0 Meta package of Relational Record
nightly-2026-01-18 relational-schemas-0.1.8.1 RDBMSs' schema templates for relational-query
nightly-2026-01-18 reliable-io-0.0.2 Bindings to the low-level reliable.io library
nightly-2026-01-18 relude-1.2.2.2 Safe, performant, user-friendly and lightweight Haskell Standard Library
lts-11.22 rematch-0.2.0.0 A simple api for matchers
nightly-2026-01-18 renderable-0.2.0.1 An API for managing renderable resources
lts-24.28 reorder-expression-0.1.0.2 Reorder expressions in a syntax tree according to operator fixities
lts-24.28 repa-3.4.2.0 High performance, regular, shape polymorphic parallel arrays
lts-24.28 repa-algorithms-3.4.2.0 Algorithms using the Repa array library
lts-6.35 repa-devil-0.3.2.6 Support for image reading and writing of Repa arrays using in-place FFI calls
lts-24.28 repa-io-3.4.2.0 Read and write Repa arrays in various formats
nightly-2026-01-18 replace-attoparsec-1.5.0.0 Find, replace, split string patterns with Attoparsec parsers (instead of regex)
nightly-2026-01-18 replace-megaparsec-1.5.0.1 Find, replace, split string patterns with Megaparsec parsers (instead of regex)
lts-9.21 RepLib-0.5.4 Generic programming library with representation types
nightly-2026-01-18 repline-0.4.3.0 Haskeline wrapper for GHCi-like REPL interfaces
nightly-2026-01-18 req-3.13.4 HTTP client library
nightly-2026-01-18 req-conduit-1.0.2 Conduit helpers for the req HTTP client library
lts-19.33 require-0.4.11 Scrap your qualified import clutter
nightly-2019-07-13 req-url-extra-0.1.1.0 Provides URI/URL helper functions for use with Req
nightly-2026-01-18 rerebase-1.22 Reexports from "base" with a bunch of other standard libraries
lts-24.28 rerefined-0.8.0 Refinement types, again
nightly-2026-01-18 reroute-0.7.0.0 abstract implementation of typed and untyped web routing
lts-19.33 rescue-0.4.2.1 More understandable exceptions
nightly-2026-01-18 resistor-cube-0.0.1.4 Compute total resistance of a cube of resistors
nightly-2026-01-18 resolv-0.2.0.3 Domain Name Service (DNS) lookup via the libresolv standard library routines
lts-9.21 resolve-trivial-conflicts-0.3.2.4 Remove trivial conflict markers in a git repository
nightly-2026-01-18 resource-pool-0.5.0.0 A high-performance striped resource pooling implementation
nightly-2026-01-18 resourcet-1.3.0 Deterministic allocation and freeing of scarce resources
lts-17.15 resourcet-pool-0.1.0.0 A small library to convert a Pool into an Acquire
lts-10.10 rest-client-0.5.1.1 Utility library for use in generated API client libraries
lts-11.22 rest-core-0.39 Rest API library
lts-10.10 rest-gen-0.20.0.1 Documentation and client generation from rest definition
lts-10.10 rest-happstack-0.3.1.1 Rest driver for Happstack
nightly-2026-01-18 rest-rewrite-0.4.5 Rewriting library with online termination checking
lts-11.22 rest-snap-0.3.0.0 Rest driver for Snap
lts-12.26 rest-stringmap-0.2.0.7 Maps with stringy keys that can be transcoded to JSON and XML
lts-11.22 rest-types-1.14.1.2 Silk Rest Framework Types
lts-10.10 rest-wai-0.2.0.1 Rest driver for WAI applications
nightly-2026-01-18 result-0.2.6.0 Encode success or at least one error
lts-9.21 rethinkdb-2.2.0.10 A driver for RethinkDB 2.2
lts-18.28 rethinkdb-client-driver-0.0.25 Client driver for RethinkDB
nightly-2026-01-18 retry-0.9.3.1 Retry combinators for monadic actions that may fail
nightly-2026-01-18 rev-scientific-0.2.1.0 A library to provide special kind of big numbers writing.
nightly-2026-01-18 rev-state-0.2.0.1 Reverse State monad transformer
nightly-2026-01-18 rex-0.6.2 A quasi-quoter for typeful results of regex captures
nightly-2026-01-18 rfc1751-0.1.4 RFC-1751 library for Haskell
nightly-2026-01-18 rfc5051-0.2 Simple unicode collation as per RFC5051
nightly-2026-01-18 rg-1.4.0.0 A dynamic/unbounded alternative to Bounded Enum
nightly-2026-01-18 rhbzquery-0.4.5 Bugzilla query tool
nightly-2026-01-18 rhine-1.6 Functional Reactive Programming with type-level clocks
lts-23.28 rhine-bayes-1.5 monad-bayes backend for Rhine
nightly-2026-01-18 rhine-gloss-1.6 Gloss backend for Rhine
nightly-2026-01-18 rhine-terminal-1.6 Terminal backend for Rhine
nightly-2026-01-18 rhythmic-sequences-0.8.0.0 Improved library to deal with rhythmicity of short sequences
lts-12.26 riak-1.1.2.5 A Haskell client for the Riak decentralized data store
lts-24.28 riak-protobuf-0.25.0.0 Haskell types for the Riak protocol buffer API
nightly-2026-01-18 richenv-0.1.0.3 Rich environment variable setup for Haskell
lts-18.28 rigel-viz-0.2.0.0 A mid-level wrapper for vega-lite
nightly-2026-01-18 rio-0.1.24.0 A standard library for Haskell
nightly-2026-01-18 rio-orphans-0.1.2.0 Orphan instances for the RIO type in the rio package
nightly-2026-01-18 rio-prettyprint-0.1.8.0 Pretty-printing for RIO
lts-6.35 Rlang-QQ-0.3.1.0 quasiquoter for inline-R code
lts-10.10 RNAlien-1.3.7 Unsupervized construction of RNA family models
nightly-2026-01-18 rng-utils-0.3.1 RNG within an IORef for convenient concurrent use
nightly-2026-01-18 roc-id-0.3.0.0 Implementation of the ROC (Taiwan) Uniform ID Number format
nightly-2026-01-18 rocksdb-haskell-1.0.1 Haskell bindings to RocksDB
nightly-2026-01-18 rocksdb-haskell-jprupp-2.1.7 Haskell bindings for RocksDB
nightly-2026-01-18 rocksdb-query-0.4.3 RocksDB database querying library for Haskell
nightly-2026-01-18 roles-0.2.1.0 Composable class-based roles
nightly-2026-01-18 rollbar-2.0.0.0 error tracking through rollbar.com
nightly-2018-09-28 rollbar-hs-0.3.1.0 Core Rollbar data types and APIs
nightly-2026-01-18 rope-utf16-splay-0.4.0.0 Ropes optimised for updating using UTF-16 code units and row/column pairs
lts-11.22 rose-trees-0.0.4.4 A collection of rose tree structures
nightly-2026-01-18 rosezipper-0.2 Generic zipper implementation for Data.Tree
nightly-2026-01-18 rot13-0.2.0.1 Fast ROT13 cipher for Haskell
lts-9.21 rotating-log-0.4.2 Size-limited, concurrent, automatically-rotating log writer
lts-13.30 rounded-0.1.0.1 Correctly-rounded arbitrary-precision floating-point arithmetic
nightly-2026-01-18 RoundingFiasco-0.1.0.0 rounding variants floor, ceil and truncate for floating point operations +-*/√…
nightly-2026-01-18 row-types-1.0.1.2 Open Records and Variants
nightly-2026-01-18 rpmbuild-order-0.4.13 Sort RPM packages in dependency order
nightly-2026-01-18 rpm-nvr-0.1.2 RPM package name-version-release data types
nightly-2026-01-18 rp-tree-0.7.1 Random projection trees
nightly-2026-01-18 rrb-vector-0.2.2.1 Efficient RRB-Vectors
nightly-2026-01-18 RSA-2.4.1 Implementation of RSA, using the padding schemes of PKCS#1 v2.1
nightly-2026-01-18 rss-3000.2.0.8 A library for generating RSS 2.0 feeds
lts-23.28 rss-conduit-0.6.0.1 Streaming parser/renderer for the RSS standard
lts-23.28 run-haskell-module-0.0.2 Running newly generated Haskell source module
nightly-2026-01-18 runmemo-1.0.0.1 A simple memoization helper library
nightly-2026-01-18 run-st-0.1.3.3 runST without boxing penalty
lts-24.28 rvar-0.3.0.2 Random Variables
nightly-2026-01-18 rzk-0.7.7 An experimental proof assistant for synthetic ∞-categories
lts-24.28 s3-signer-0.5.0.0 Pre-signed Amazon S3 URLs
nightly-2026-01-18 safe-0.3.21 Library of safe (exception free) functions
nightly-2026-01-18 safe-coloured-text-0.3.0.2 Safely output coloured text
nightly-2026-01-18 safe-coloured-text-gen-0.0.0.3
nightly-2026-01-18 safe-coloured-text-layout-0.2.0.1 Safely layout output coloured text
nightly-2026-01-18 safe-coloured-text-layout-gen-0.0.0.1
nightly-2026-01-18 safe-coloured-text-terminfo-0.3.0.0 Safely output coloured text
nightly-2026-01-18 safecopy-0.10.4.3 Binary serialization with version control
nightly-2026-01-18 safe-decimal-0.2.1.0 Safe and very efficient arithmetic operations on fixed decimal point numbers
nightly-2026-01-18 safe-exceptions-0.1.7.4 Safe, consistent, and easy exception handling
lts-21.25 safe-exceptions-checked-0.1.0 Safe, checked exceptions
nightly-2026-01-18 safe-foldable-0.1.0.0 Safe wrappers for null-partial Foldable operations
nightly-2026-01-18 safe-gen-1.0.1 Recursive Arbitrary instances without headaches
nightly-2026-01-18 safeio-0.0.6.0 Write output to disk atomically
nightly-2026-01-18 safe-json-1.2.1.1 Automatic JSON format versioning
nightly-2026-01-18 safe-money-0.9.1 Type-safe and lossless encoding and manipulation of money, fiat currencies, crypto currencies and precious metals
nightly-2026-01-18 SafeSemaphore-0.10.1 Much safer replacement for QSemN, QSem, and SampleVar
lts-18.28 safe-tensor-0.2.1.1 Dependently typed tensor algebra
lts-19.33 salak-0.3.6 Configuration (re)Loader and Parser
lts-14.26 salak-toml-0.3.5.3 Configuration Loader for toml
lts-19.33 salak-yaml-0.3.5.3 Configuration Loader for yaml
nightly-2026-01-18 saltine-0.2.2.0 Cryptography that's easy to digest (NaCl/libsodium bindings)
nightly-2026-01-18 salve-2.0.0.10 Semantic version numbers and constraints
nightly-2026-01-18 sample-frame-0.0.4 Handling of samples in an (audio) signal
nightly-2026-01-18 sample-frame-np-0.0.5 Orphan instances for types from sample-frame and numericprelude
nightly-2026-01-18 sampling-0.3.5 Sample values from collections
nightly-2026-01-18 samsort-0.1.0.0 A stable adaptive mergesort implementation
nightly-2026-01-18 sandi-0.5 Data encoding library
lts-14.27 sandman-0.2.0.1 Manages Cabal sandboxes to avoid rebuilding packages
nightly-2026-01-18 sandwich-0.3.0.5 Yet another test framework for Haskell
nightly-2026-01-18 sandwich-contexts-0.3.0.3 Contexts for the Sandwich test library
nightly-2026-01-18 sandwich-hedgehog-0.1.3.1 Sandwich integration with Hedgehog
nightly-2026-01-18 sandwich-quickcheck-0.2.0.0 Sandwich integration with QuickCheck
nightly-2026-01-18 sandwich-slack-0.1.2.0 Sandwich integration with Slack
nightly-2026-01-18 sandwich-webdriver-0.4.0.2 Sandwich integration with Selenium WebDriver
nightly-2026-01-18 saturn-1.1.0.5 Handle POSIX cron schedules
nightly-2026-01-18 say-0.1.0.1 Send textual messages to a Handle in a thread-friendly way
nightly-2026-01-18 sayable-1.2.6.0 Construction of context-adjusted pretty output
nightly-2026-01-18 sbp-6.3.2 SwiftNav's SBP Library
nightly-2026-01-18 sbv-13.4 SMT Based Verification: Symbolic Haskell theorem prover using SMT solving
lts-12.26 scalendar-1.2.0 A library for handling calendars and resource availability over time
lts-12.26 SCalendar-1.1.0 This is a library for handling calendars and resource availability based on the "top-nodes algorithm" and set operations
nightly-2026-01-18 scalpel-0.6.2.2 A high level web scraping library for Haskell
nightly-2026-01-18 scalpel-core-0.6.2.2 A high level web scraping library for Haskell
nightly-2026-01-18 scanf-0.1.0.0 Easy and type-safe format strings for parsing and printing
nightly-2026-01-18 scanner-0.3.1 Fast non-backtracking incremental combinator parsing for bytestrings
nightly-2026-01-18 s-cargot-0.1.6.0 A flexible, extensible s-expression library
nightly-2026-01-18 scheduler-2.0.1.0 Work stealing scheduler
lts-11.22 schematic-0.4.2.0 JSON-biased spec and validation tool
nightly-2026-01-18 SciBaseTypes-0.1.1.0 Base types and classes for statistics, sciences and humanities
nightly-2026-01-18 scientific-0.3.8.1 Numbers represented using scientific notation
nightly-2026-01-18 scientist-0.0.0.0 A Haskell library for carefully refactoring critical paths
nightly-2026-01-18 scotty-0.22 Haskell web framework inspired by Ruby's Sinatra, using WAI and Warp
lts-9.21 scrape-changes-0.1.0.5 Scrape websites for changes
lts-2.22 scrobble-0.2.1.1 Scrobbling server
nightly-2026-01-18 scrypt-0.5.0 Stronger password hashing via sequential memory-hard functions
lts-9.21 SDL-0.6.6.0 Binding to libSDL
nightly-2026-01-18 sdl2-2.5.5.1 Both high- and low-level bindings to the SDL library (version 2.0.6+)
nightly-2026-01-18 sdl2-gfx-0.3.0.0 Haskell bindings to SDL2_gfx
nightly-2026-01-18 sdl2-image-2.1.0.0 Haskell bindings to SDL2_image
nightly-2026-01-18 sdl2-mixer-1.2.0.0 Haskell bindings to SDL2_mixer
nightly-2026-01-18 sdl2-ttf-2.1.3 Bindings to SDL2_ttf
nightly-2026-01-18 search-algorithms-0.3.4 Common graph search algorithms
nightly-2016-02-23 second-transfer-0.10.0.2 Second Transfer HTTP/2 web server
lts-7.24 secp256k1-0.4.8 Bindings for secp256k1 library from Bitcoin Core
nightly-2026-01-18 secp256k1-haskell-1.4.6 Bindings for secp256k1
nightly-2026-01-18 securemem-0.1.10 abstraction to an auto scrubbing and const time eq, memory chunk
lts-12.26 SegmentTree-0.3 Data structure for querying the set (or count) of intervals covering given point
nightly-2026-01-18 sel-0.1.0.0 Cryptography for the casual user
nightly-2026-01-18 selda-0.5.2.1 Multi-backend, high-level EDSL for interacting with SQL databases
nightly-2026-01-18 selda-json-0.1.1.2 JSON support for the Selda database library
nightly-2026-01-18 selda-postgresql-0.1.8.3 PostgreSQL backend for the Selda database EDSL
lts-20.26 selda-sqlite-0.1.7.2 SQLite backend for the Selda database EDSL
nightly-2026-01-18 selections-0.3.0.0 Combinators for operating with selections over an underlying functor
nightly-2026-01-18 selective-0.7.0.1 Selective applicative functors
nightly-2026-01-18 select-rpms-0.3.1 Select a subset of RPM packages
nightly-2026-01-17 semaphore-compat-1.0.0 Cross-platform abstraction for system semaphores
nightly-2026-01-18 semialign-1.3.1 Align and Zip type-classes from the common Semialign ancestor
lts-20.26 semialign-indexed-1.2 SemialignWithIndex, i.e. izipWith and ialignWith
lts-20.26 semialign-optics-1.2 SemialignWithIndex, i.e. izipWith and ialignWith
lts-21.25 semigroupoid-extras-5 Semigroupoids that depend on PolyKinds
nightly-2026-01-18 semigroupoids-6.0.2 Semigroupoids: Category sans id
nightly-2026-01-18 semigroups-0.20.1 Anything that associates
nightly-2026-01-18 semirings-0.7 two monoids as one, in holy haskimony
nightly-2026-01-18 semiring-simple-1.0.0.1 A module for dealing with semirings
nightly-2026-01-18 semver-0.4.0.1 Representation, manipulation, and de/serialisation of Semantic Versions
nightly-2026-01-18 sendfile-0.7.11.6 A portable sendfile library
nightly-2026-01-18 sendgrid-v3-1.0.0.1 Sendgrid v3 API library
lts-11.22 sensu-run-0.4.0.5 A tool to send command execution results to Sensu
nightly-2026-01-18 seqalign-0.2.0.4 Sequence Alignment
nightly-2026-01-18 seqid-0.6.3 Sequence ID production and consumption
nightly-2026-01-18 seqid-streams-0.7.2 Sequence ID IO-Streams
lts-11.22 seqloc-0.6.1.1 Handle sequence locations for bioinformatics
lts-11.22 sequence-0.9.8 A type class for sequences and various sequence data structures
nightly-2026-01-18 sequence-formats-1.11.0.2 A package with basic parsing utilities for several Bioinformatic data formats
nightly-2026-01-18 sequenceTools-1.6.0.0 A package with tools for processing DNA sequencing data
lts-20.26 serf-0.1.1.0 Interact with Serf via Haskell
nightly-2026-01-18 serialise-0.2.6.1 A binary serialisation library for Haskell values
lts-6.35 serialport-0.4.7 Cross platform serial port library
nightly-2026-01-18 servant-0.20.3.0 A family of combinators for defining webservices APIs
lts-8.24 servant-aeson-specs-0.5.2.0 generic tests for aeson serialization in servant
nightly-2026-01-18 servant-auth-0.4.2.0 Authentication combinators for servant
nightly-2026-01-18 servant-auth-client-0.4.2.0 servant-client/servant-auth compatibility
nightly-2018-03-10 servant-auth-cookie-0.6.0.3 Authentication via encrypted cookies
nightly-2026-01-18 servant-auth-docs-0.2.11.0 servant-docs/servant-auth compatibility
nightly-2026-01-18 servant-auth-server-0.4.9.1 servant-server/servant-auth compatibility
lts-24.28 servant-auth-swagger-0.2.11.0 servant-swagger/servant-auth compatibility
lts-21.25 servant-auth-wordpress-1.0.0.2 Authenticate Routes Using Wordpress Cookies
nightly-2026-01-18 servant-blaze-0.9.1 Blaze-html support for servant
lts-21.25 servant-cassava-0.10.2 Servant CSV content-type for cassava
nightly-2026-01-18 servant-checked-exceptions-2.2.0.1 Checked exceptions for Servant APIs
nightly-2026-01-18 servant-checked-exceptions-core-2.2.0.1 Checked exceptions for Servant APIs
nightly-2026-01-18 servant-cli-0.1.1.0 Command line interface for Servant API clients
nightly-2026-01-18 servant-client-0.20.3.0 Automatic derivation of querying functions for servant
nightly-2026-01-18 servant-client-core-0.20.3.0 Core functionality and class for client function generation for servant APIs
nightly-2026-01-18 servant-conduit-0.16.1 Servant Stream support for conduit
lts-12.26 servant-dhall-0.1.0.1 Servant Dhall content-type
nightly-2026-01-18 servant-docs-0.13.1 generate API docs for your servant webservice
nightly-2022-02-07 servant-docs-simple-0.4.0.0 Generate endpoints overview for Servant API
nightly-2026-01-18 servant-elm-0.7.3 Automatically derive Elm functions to query servant webservices
lts-18.28 servant-errors-0.1.6.0 Servant Errors wai-middlware
nightly-2026-01-18 servant-exceptions-0.2.1 Extensible exceptions for servant APIs
nightly-2026-01-18 servant-exceptions-server-0.2.1 Extensible exceptions for servant API servers
nightly-2026-01-18 servant-foreign-0.16.1 Helpers for generating clients for servant APIs in any programming language
lts-11.22 servant-generic-0.1.0.3 Specify Servant APIs with records
nightly-2022-02-07 servant-github-webhook-0.4.2.0 Servant combinators to facilitate writing GitHub webhooks
nightly-2026-01-18 servant-http-streams-0.20.2 Automatic derivation of querying functions for servant
lts-5.18 servant-jquery-0.4.4.7 Automatically derive (jquery) javascript functions to query servant webservices
lts-16.31 servant-js-0.9.4.2 Automatically derive javascript functions to query servant webservices
nightly-2026-01-18 servant-JuicyPixels-0.3.1.1 Servant support for JuicyPixels
lts-14.27 servant-kotlin-0.1.1.9 Automatically derive Kotlin class to query servant webservices
nightly-2026-01-18 servant-lucid-0.9.0.6 Servant support for lucid
nightly-2026-01-18 servant-machines-0.16.1 Servant Stream support for machines
lts-16.31 servant-mock-0.8.5 Derive a mock server for free from your servant API types
nightly-2026-01-18 servant-multipart-0.12.1 multipart/form-data (e.g file upload) support for servant
nightly-2026-01-18 servant-multipart-api-0.12.1 multipart/form-data (e.g file upload) support for servant
lts-24.28 servant-multipart-client-0.12.2 multipart/form-data (e.g file upload) support for servant
lts-24.28 servant-openapi3-2.0.1.6 Generate a Swagger/OpenAPI/OAS 3.0 specification for your servant API
lts-13.30 servant-pandoc-0.5.0.0 Use Pandoc to render servant API documentation
nightly-2026-01-18 servant-pipes-0.16.1 Servant Stream support for pipes
nightly-2026-01-18 servant-prometheus-1.3.0 Helpers for using prometheus with servant
lts-16.31 servant-purescript-0.10.0.0 Generate PureScript accessor functions for you servant API
lts-23.28 servant-quickcheck-0.1.1.0 QuickCheck entire APIs
nightly-2026-01-18 servant-rate-limit-0.2.0.0 Rate limiting for Servant
nightly-2026-01-18 servant-rawm-1.0.0.0 Embed a raw 'Application' in a Servant API
lts-20.26 servant-ruby-0.9.0.0 Generate a Ruby client from a Servant API with Net::HTTP
nightly-2026-01-18 servant-server-0.20.3.0 A family of combinators for defining webservices APIs and serving them
nightly-2026-01-18 servant-static-th-1.0.0.1 Embed a directory of static files in your Servant server
lts-13.30 servant-streaming-0.3.0.0 Servant combinators for the 'streaming' package
lts-12.26 servant-streaming-client-0.3.0.0 Client instances for the 'servant-streaming' package
lts-12.26 servant-streaming-server-0.3.0.0 Server instances for the 'servant-streaming' package
lts-22.44 servant-subscriber-0.7.0.0 When REST is not enough ..
lts-24.28 servant-swagger-1.2.1 Generate a Swagger/OpenAPI/OAS 2.0 specification for your servant API
nightly-2026-01-18 servant-swagger-ui-0.3.5.5.0.1 Servant swagger ui
nightly-2026-01-18 servant-swagger-ui-core-0.3.5 Servant swagger ui core components
nightly-2026-01-18 servant-swagger-ui-redoc-0.3.5 Servant swagger ui: ReDoc theme
nightly-2022-02-07 servant-tracing-0.1.0.2
nightly-2026-01-18 servant-websockets-2.0.0 Small library providing WebSocket endpoints for servant
nightly-2026-01-18 servant-xml-1.0.3 Servant support for the XML Content-Type
lts-16.31 servant-yaml-0.1.0.1 Servant support for yaml
lts-18.28 serverless-haskell-0.12.6 Deploying Haskell code onto AWS Lambda using Serverless
nightly-2026-01-18 serversession-1.0.3 Secure, modular server-side sessions
nightly-2026-01-18 serversession-backend-acid-state-1.0.5 Storage backend for serversession using acid-state
lts-23.28 serversession-backend-persistent-2.0.3 Storage backend for serversession using persistent and an RDBMS
nightly-2026-01-18 serversession-backend-redis-1.0.5 Storage backend for serversession using Redis
lts-6.35 serversession-frontend-snap-1.0.1 Snap bindings for serversession
nightly-2026-01-18 serversession-frontend-wai-1.0.1 wai-session bindings for serversession
nightly-2026-01-18 serversession-frontend-yesod-1.0.1 Yesod bindings for serversession
nightly-2026-01-18 servius-1.2.3.0 Warp web server with template rendering
lts-24.28 ses-html-0.4.0.0 Send HTML formatted emails using Amazon's SES REST API with blaze
nightly-2018-03-10 sessiontypes-0.1.2 Session types library
nightly-2018-03-10 sessiontypes-distributed-0.1.1 Session types distributed
nightly-2026-01-18 set-cover-0.1.1.1 Solve exact set cover problems like Sudoku, 8 Queens, Soma Cube, Tetris Cube
nightly-2026-01-18 setenv-0.1.1.3 A cross-platform library for setting environment variables
lts-6.35 set-extra-1.4 Functions that could be added to Data.Set
nightly-2026-01-18 setlocale-1.0.0.10 Haskell bindings to setlocale
lts-23.28 set-monad-0.3.0.0 Set monad
lts-21.25 sets-0.0.6.2 Ducktyped set interface for Haskell containers
nightly-2026-01-18 sexp-grammar-2.3.4.2 Invertible grammar combinators for S-expressions
lts-20.26 sexpr-parser-0.2.2.0 Simple s-expression parser
nightly-2026-01-18 SHA-1.6.4.4 Implementations of the SHA suite of message digest functions
nightly-2026-01-18 shake-0.19.8 Build system library, like Make, but more accurate dependencies
lts-22.44 shake-language-c-0.12.0 Utilities for cross-compiling with Shake
nightly-2026-01-18 shake-plus-0.3.4.0 Re-export of Shake using well-typed paths and ReaderT
lts-22.44 shake-plus-extended-0.4.1.0 Experimental extensions to shake-plus
nightly-2026-01-18 shakespeare-2.2.0 A toolkit for making compile-time interpolated templates
lts-1.15 shakespeare-i18n-1.1.0 A type-based approach to internationalization. (deprecated)
nightly-2026-01-18 shakespeare-text-1.1.0 Interpolation with quasi-quotation: put variables strings (deprecated)
nightly-2026-01-18 shared-memory-0.2.0.1 POSIX shared memory
nightly-2026-01-18 ShellCheck-0.11.0 Shell script analysis tool
nightly-2026-01-18 shell-conduit-5.0.0 Write shell scripts with Conduit
nightly-2026-01-18 shell-escape-0.2.0 Shell escaping library
nightly-2026-01-18 shellify-0.14.0.2 A tool for generating shell.nix files
nightly-2026-01-18 shellmet-0.0.6.0 Out of the shell solution for scripting in Haskell
nightly-2026-01-18 shelltestrunner-1.11 Easy, repeatable testing of CLI programs/commands
nightly-2026-01-18 shell-utility-0.1 Utility functions for writing command-line programs
nightly-2026-01-18 shellwords-0.1.4.6 Parse strings into words, like a shell would
nightly-2026-01-18 shelly-1.12.1.1 shell-like (systems) programming in Haskell
lts-20.26 shikensu-0.4.1 Run a sequence of functions on in-memory representations of files
lts-18.28 shortcut-links-0.5.1.1 Link shortcuts for use in text markup
nightly-2026-01-18 should-not-typecheck-2.1.0 A HUnit/hspec assertion library to verify that an expression does not typecheck
lts-3.22 show-0.6 'Show' instances for Lambdabot
nightly-2026-01-18 show-combinators-0.2.0.0 Combinators to write Show instances
nightly-2026-01-18 shower-0.2.0.4 Clean up the formatting of 'show' output
lts-14.26 show-prettyprint-0.3.0.1 Robust prettyprinter for output of auto-generated Show instances
lts-7.24 show-type-0.1.1 convert types into string values in haskell
lts-9.21 sibe-0.2.0.5 Machine Learning algorithms
nightly-2026-01-18 siggy-chardust-1.0.0 Rounding rationals to significant digits and decimal places
nightly-2026-01-18 signal-0.1.0.4 Multiplatform signal support for Haskell
nightly-2026-01-18 silently-1.2.5.4 Prevent or capture writing to stdout and other handles
nightly-2026-01-18 simple-2.0.0 A minimalist web framework for the WAI server interface
nightly-2026-01-18 simple-affine-space-0.2.1 A simple library for affine and vector spaces
nightly-2026-01-18 simple-cabal-0.2.0 Cabal compatibility wrapper library
nightly-2026-01-18 simple-cairo-0.1.0.6 Binding to Cairo library
nightly-2026-01-18 simple-cmd-0.2.7 Simple String-based process commands
nightly-2026-01-18 simple-cmd-args-0.1.8 Simple command args parsing and execution
lts-9.21 simple-download-0.0.2 A simple wrapper of http-conduit for file download
nightly-2026-01-18 simple-expr-0.2.0.2 Minimalistic toolkit for simple mathematical expression
lts-6.35 simpleirc-0.3.1 Simple IRC Library
lts-19.33 simple-log-0.9.12 Simple log for Haskell
nightly-2026-01-18 simple-media-timestamp-0.2.1.0 A very simple timestamp type
nightly-2026-01-18 simple-media-timestamp-attoparsec-0.1.0.0 Attoparsec parser for simple-media-timestamp
lts-20.26 simple-media-timestamp-formatting-0.1.1.0 Formatting for simple-media-timestamp
nightly-2026-01-18 simple-pango-0.1.0.2 Binding to Pango library
lts-6.35 simple-postgresql-orm-0.9.0.1 Connector package for integrating postgresql-orm with the Simple web framework
nightly-2026-01-18 simple-prompt-0.2.4 Simple commandline text prompt functions
nightly-2026-01-18 simple-reflect-0.3.3 Simple reflection of expressions containing variables
nightly-2026-01-18 simple-sendfile-0.2.32 Cross platform library for the sendfile system call
lts-24.28 simple-session-2.0.0 Cookie-based session management for the Simple web framework
nightly-2017-10-02 simple-smt-0.7.0 A simple way to interact with an SMT solver process
lts-16.31 simplest-sqlite-0.1.0.2 Simplest SQLite3 binding
nightly-2026-01-18 simple-templates-2.0.0 A basic template language for the Simple web framework
nightly-2026-01-18 simple-vec3-0.6.0.1 Three-dimensional vectors of doubles with basic operations
lts-18.28 simplistic-generics-2.0.0 Generic programming without too many type classes
nightly-2026-01-18 since-0.0.0 Get the number of seconds since the last invocation
nightly-2026-01-18 singleraeh-0.4.0 raehik's singletons
nightly-2026-01-18 singleton-bool-0.1.8 Type level booleans
nightly-2026-01-18 singleton-nats-0.4.7 Unary natural numbers relying on the singletons infrastructure
nightly-2026-01-18 singletons-3.0.4 Basic singleton types and definitions
nightly-2026-01-18 singletons-base-3.5 A promoted and singled version of the base library
nightly-2026-01-18 singletons-presburger-0.7.4.1 Presburger Arithmetic Solver for GHC Type-level natural numbers with Singletons package
nightly-2026-01-18 singletons-th-3.5 A framework for generating singleton types
lts-19.33 siphash-1.0.3 siphash: a fast short input PRF
nightly-2026-01-18 Sit-0.2023.8.3 Prototypical type checker for Type Theory with Sized Natural Numbers
nightly-2026-01-18 sitemap-gen-0.1.0.0 Generate XML Sitemaps & Sitemap Indexes
nightly-2026-01-18 size-based-0.1.3.3 Sized functors, for size-based enumerations
nightly-2026-01-18 sized-1.1.0.2 Sized sequence data-types
nightly-2019-09-21 sized-grid-0.2.0.1 Multidimensional grids with sized specified at compile time
nightly-2026-01-18 skein-1.0.9.4 Skein, a family of cryptographic hash functions. Includes Skein-MAC as well
nightly-2026-01-18 skeletest-0.3.2 Batteries-included, opinionated test framework
lts-11.22 skeletons-0.4.0 Manage project skeletons
nightly-2026-01-18 skews-0.1.0.3 A very quick-and-dirty WebSocket server
nightly-2026-01-18 skip-var-0.1.1.0 Skip variables
nightly-2026-01-18 skylighting-0.14.7 syntax highlighting library
nightly-2026-01-18 skylighting-core-0.14.7 syntax highlighting library
nightly-2026-01-18 skylighting-format-ansi-0.1 ANSI formatter for skylighting syntax highlighting library
nightly-2026-01-18 skylighting-format-blaze-html-0.1.1.3 HTML formatter for skylighting syntax highlighting library
nightly-2026-01-18 skylighting-format-context-0.1.0.2 ConTeXt formatter for skylighting syntax highlighting library
nightly-2026-01-18 skylighting-format-latex-0.1 LaTeX formatter for skylighting syntax highlighting library
nightly-2026-01-18 skylighting-format-typst-0.1 Typst formatter for skylighting syntax highlighting library
lts-18.28 slack-api-0.12 Bindings to the Slack RTM API
lts-21.25 slack-progressbar-0.1.0.1
nightly-2026-01-18 slack-web-2.2.0.0 Bindings for the Slack web API
nightly-2026-01-18 slave-thread-1.1.0.3 A fundamental solution to ghost threads and silent exceptions
nightly-2026-01-18 slick-1.4.0.1 A quick & easy static site builder built with shake and pandoc
nightly-2026-01-18 slist-0.3.0.0 Sized list
lts-11.22 slug-0.1.7 Type-safe slugs for Yesod ecosystem
nightly-2026-01-18 slynx-0.9.0.0 Handle molecular sequences
lts-15.16 small-bytearray-builder-0.3.4.0 Serialize to bytes
lts-9.21 smallcaps-0.6.0.4 Flatten camel case text in LaTeX files
nightly-2026-01-18 smallcheck-1.2.1.1 A property-based testing library
lts-14.27 smallcheck-series-0.6.1 Extra SmallCheck series and utilities
lts-19.33 smash-0.1.3 Combinators for Maybe types
lts-18.28 smash-aeson-0.1.0.0 Aeson support for the smash library
lts-18.28 smash-lens-0.1.0.1 Optics for the `smash` library
lts-19.33 smash-microlens-0.1.0.2 Optics for the `smash` library
nightly-2026-01-18 smith-0.2.0.0 Parse arrays of tokens
lts-18.28 smoothie-0.4.2.11 Smooth curves via several interpolation modes
lts-7.24 smsaero-0.6.2 SMSAero API and HTTP client based on servant library
nightly-2017-10-02 smtLib-1.0.8 A library for working with the SMTLIB format
nightly-2026-01-18 smtlib-backends-0.4 Low-level functions for SMT-LIB-based interaction with SMT solvers
nightly-2026-01-18 smtlib-backends-process-0.3 An SMT-LIB backend running solvers as external processes
nightly-2026-01-18 smtlib-backends-tests-0.3 Testing SMT-LIB backends
nightly-2026-01-18 smtp-mail-0.5.0.0 Simple email sending via SMTP
lts-24.28 snap-1.1.3.3 Top-level package for the Snap Web Framework
nightly-2026-01-18 snap-blaze-0.2.1.5 blaze-html integration for Snap
nightly-2026-01-18 snap-core-1.0.5.1 Snap: A Haskell Web Framework (core interfaces and types)
lts-6.35 snaplet-fay-0.3.3.14 Fay integration for Snap with request- and pre-compilation
nightly-2026-01-18 snappy-0.2.0.4 Fast Haskell bindings to Google’s Snappy compression library
nightly-2026-01-18 snappy-hs-0.1.0.4 Snappy compression library
nightly-2026-01-18 snap-server-1.1.2.1 A web server for the Snap Framework
lts-6.35 snmp-0.2.1.1 API for write snmp client
nightly-2026-01-18 snowflake-0.1.1.1 A loose port of Twitter Snowflake to Haskell. Generates arbitrary precision, unique, time-sortable identifiers
lts-10.10 snowtify-0.1.0.3 snowtify send your result of `stack build` (`stack test`) to notify-daemon :dog2:
nightly-2026-01-18 soap-0.2.3.6 SOAP client tools
nightly-2026-01-18 soap-openssl-0.1.0.2 TLS-enabled SOAP transport (using openssl bindings)
nightly-2026-01-18 soap-tls-0.2.0.0 TLS-enabled SOAP transport (using tls package)
nightly-2026-01-18 sockaddr-0.0.1 Printing SockAddr
nightly-2026-01-18 socket-0.8.3.0 An extensible socket library
lts-14.26 socket-activation-0.1.0.2 systemd socket activation library
lts-6.35 socket-io-1.3.7
nightly-2026-01-18 socks-0.6.1 Socks proxy (ver 5)
lts-6.35 sodium-0.11.0.3 Sodium Reactive Programming (FRP) System
nightly-2026-01-18 solana-staking-csvs-0.2.0.0 Generate CSV Exports of your Solana Staking Rewards
lts-9.21 solga-0.1.0.2 Simple typesafe web routing
lts-9.21 solga-swagger-0.1.0.2 Swagger generation for Solga
nightly-2026-01-18 some-1.0.6 Existential type: Some
nightly-2026-01-18 some-dict-of-0.1.0.2 Carry evidence of constraints around
nightly-2026-01-18 sop-core-0.5.0.2 True Sums of Products
nightly-2026-01-18 sort-1.0.0.0 A Haskell sorting toolkit
nightly-2026-01-18 sorted-list-0.3.1.0 Type-enforced sorted lists and related functions
lts-24.28 sound-collage-0.2.1 Approximate a song from other pieces of sound
nightly-2026-01-18 sourcemap-0.1.7 Implementation of source maps as proposed by Google and Mozilla
nightly-2026-01-18 sox-0.2.3.2 Play, write, read, convert audio signals using Sox
nightly-2026-01-18 soxlib-0.0.3.2 Write, read, convert audio signals using libsox
nightly-2026-01-18 spacecookie-1.0.0.3 Gopher server library and daemon
lts-12.26 sparkle-0.7.4 Distributed Apache Spark applications in Haskell
lts-20.26 sparse-linear-algebra-0.3.1 Numerical computing in native Haskell
lts-18.28 sparse-tensor-0.2.1.5 typesafe tensor algebra library
lts-19.33 spatial-math-0.5.0.1 3d math including quaternions/euler angles/dcms and utility functions
lts-22.44 SpatialMath-0.2.7.1 3d math including quaternions/euler angles/dcms and utility functions
lts-24.28 spdx-1.1 SPDX license expression language, Extras
nightly-2026-01-18 special-values-0.1.0.0 Typeclass providing special values
nightly-2026-01-18 speculate-0.4.20 discovery of properties about Haskell functions
lts-12.26 speculation-1.5.0.3 A framework for safe, programmable, speculative parallelism
nightly-2026-01-18 specup-0.2.0.6 Manage the application of templates to custom yaml
nightly-2026-01-18 speedy-slice-0.3.2 Speedy slice sampling
nightly-2026-01-18 sphinx-0.6.1 Haskell bindings to the Sphinx full-text searching daemon
nightly-2026-01-18 Spintax-0.3.7.0 Random text generation based on spintax
nightly-2026-01-18 splice-0.6.1.1 Cross-platform Socket to Socket Data Splicing
lts-19.33 splint-1.0.2.1 HLint as a GHC source plugin
nightly-2026-01-18 split-0.2.5 Combinator library for splitting lists
nightly-2026-01-18 splitmix-0.1.3.2 Fast Splittable PRNG
nightly-2026-01-18 splitmix-distributions-1.2.0 Random samplers for some common distributions, based on splitmix
nightly-2026-01-18 split-record-0.1.1.4 Split a big audio file into pieces at positions of silence
lts-21.25 Spock-0.14.0.0 Another Haskell web framework for rapid development
nightly-2026-01-18 Spock-api-0.14.0.0 Another Haskell web framework for rapid development
lts-21.25 Spock-api-server-0.14.0.0 Another Haskell web framework for rapid development
lts-21.25 Spock-core-0.14.0.1 Another Haskell web framework for rapid development
lts-6.35 Spock-digestive-0.2.0.0 Digestive functors support for Spock
lts-21.25 Spock-lucid-0.4.0.1 Lucid support for Spock
lts-21.25 Spock-worker-0.3.1.0 Background workers for Spock
lts-9.21 spool-0.1 Convert between ByteString and Vector.Storable without copying
nightly-2026-01-18 spoon-0.3.1 Catch errors thrown from pure computations
nightly-2026-01-18 spreadsheet-0.1.3.10 Read and write spreadsheets from and to CSV files in a lazy way
nightly-2026-01-18 sqids-0.2.2.0 A small library that lets you generate YouTube-looking IDs from numbers
lts-21.25 sqlcli-0.2.2.0 Bindings for SQL/CLI (ODBC) C API
lts-21.25 sqlcli-odbc-0.2.0.1 ODBC specific definitions to be used by SQL CLI clients
nightly-2026-01-18 sqlite-simple-0.4.19.0 Mid-Level SQLite client library
lts-14.27 sqlite-simple-errors-0.6.1.0 Wrapper around errors from sqlite-simple
nightly-2026-01-18 sql-words-0.1.6.5 SQL keywords data constructors into OverloadedString
lts-22.44 squeal-postgresql-0.9.2.0 Squeal PostgreSQL Library
nightly-2026-01-18 squeather-0.8.0.0 Use databases with the version 3 series of the SQLite C library
nightly-2026-01-18 srcloc-0.6.0.1 Data types for managing source code locations
lts-22.44 srt-0.1.2.0 The data type for SRT files
lts-20.26 srt-attoparsec-0.1.0.0 Attoparsec parser for the SRT format
lts-19.33 srt-dhall-0.1.0.0 Dhall Encoder/Decoder for SRT
lts-20.26 srt-formatting-0.1.0.0 Format an SRT
nightly-2026-01-18 srtree-2.0.1.5 A general library to work with Symbolic Regression expression trees
nightly-2026-01-18 stache-2.3.4 Mustache templates for Haskell
nightly-2015-06-29 stack-9.9.9 The Haskell Tool Stack
lts-13.30 stack2nix-0.2.3 Convert stack.yaml files into Nix build instructions
lts-6.35 stackage-0.7.3.2 Dummy package forcing installation of other Stackage packages
nightly-2017-11-21 stackage2nix-0.3.0 Convert Stack files into Nix build instructions
lts-6.35 stackage-build-plan-0.1.1.0 Calculate and print (in different formats) Stackage build plans
lts-6.35 stackage-cabal-0.1.1 A CLI executable for cabal-based stackage commands
lts-6.35 stackage-cli-0.1.0.2 A CLI library for stackage commands
lts-10.10 stackage-curator-0.15.1.0 Tools for curating Stackage bundles
lts-6.35 stackage-install-0.1.2 Secure download of packages for cabal-install
lts-5.16 stackage-metadata-0.3.0.0 DEPRECATED Grab current metadata for all packages
lts-9.21 stackage-query-0.1.2 Stackage package query
lts-6.35 stackage-sandbox-0.1.6 Work with shared stackage sandboxes
lts-6.35 stackage-setup-0.0.2 An executable for downloading a Haskell setup
lts-9.21 stackage-types-1.2.0 Shared data types between various Stackage packages
lts-6.35 stackage-update-0.1.2 Update your package index incrementally (requires git)
lts-6.35 stackage-upload-0.1.0.6 A more secure version of cabal upload which uses HTTPS
nightly-2026-01-18 stack-all-0.7.1 CLI tool for building over Stackage major versions
nightly-2026-01-18 stack-clean-old-0.5.2 Clean away old stack build artifacts
lts-19.33 stackcollapse-ghc-0.0.1.4 Program to fold GHC prof files into flamegraph input
lts-9.21 stack-run-auto-0.1.1.4 Initial project template from stack
nightly-2026-01-18 stack-templatizer-0.1.1.0 Generate a stack template from a folder
lts-11.22 stack-type-0.1.0.0 The basic stack type
nightly-2026-01-18 stamina-0.1.0.3 Retries for humans
lts-16.31 starter-0.3.0 Develop applications without restarts
nightly-2026-01-18 state-codes-0.1.3 ISO 3166-2:US state codes and i18n names
lts-8.24 state-plus-0.1.3 MonadPlus for StateT
nightly-2026-01-18 stateref-0.3 Abstraction for things that work like IORef
nightly-2026-01-18 statestack-0.3.1.1 Simple State-like monad transformer with saveable and restorable state
nightly-2026-01-18 StateVar-1.2.2 State variables
nightly-2026-01-18 stateWriter-0.4.0 A faster variant of the RWS monad transformers
nightly-2026-01-18 static-bytes-0.1.1 A Haskell library providing types representing 8, 16, 32, 64 or 128 bytes of data
lts-22.44 static-canvas-0.2.0.3 DSL to generate HTML5 Canvas javascript
nightly-2026-01-18 static-text-0.2.0.7 Lists, Texts, ByteStrings and Vectors of statically known length
nightly-2026-01-18 statistics-0.16.5.0 A library of statistical types, data, and functions
nightly-2026-01-18 statistics-linreg-0.3 Linear regression between two samples, based on the 'statistics' package
nightly-2026-01-18 statsd-rupp-0.5.0.1 Simple StatsD Client
nightly-2026-01-18 status-notifier-item-0.3.1.0 A wrapper over the StatusNotifierItem/libappindicator dbus specification
lts-18.28 stb-image-redux-0.2.1.3 Image loading and writing microlibrary
lts-9.21 stemmer-0.5.2 Haskell bindings to the Snowball stemming library
nightly-2026-01-18 step-function-0.2.1 Staircase functions or piecewise constant functions
nightly-2026-01-18 stitch-0.6.0.0 lightweight CSS DSL
nightly-2026-01-17 stm-2.5.3.1 Software Transactional Memory
nightly-2026-01-18 stm-chans-3.0.0.9 Additional types of channels for STM
nightly-2026-01-18 stm-conduit-4.0.1 Introduces conduits to channels, and promotes using conduits concurrently
nightly-2026-01-18 stm-containers-1.2.2 Containers for STM
nightly-2026-01-18 stm-delay-0.1.1.2 Updatable one-shot timer polled with STM
nightly-2026-01-18 stm-extras-0.1.0.3 Extra STM functions
nightly-2015-12-17 stm-firehose-0.3.0.2 Conduits and STM operations for fire hoses
nightly-2026-01-18 stm-hamt-1.2.2.1 STM-specialised Hash Array Mapped Trie
lts-21.25 stm-lifted-2.5.0.0 Software Transactional Memory lifted to MonadIO
nightly-2026-01-18 STMonadTrans-0.4.8.1 A monad transformer version of the ST monad
nightly-2026-01-18 stm-split-0.0.2.1 TMVars, TVars and TChans with distinguished input and output side
lts-12.26 stm-stats-0.2.0.0 retry statistics for STM transactions
nightly-2026-01-18 stm-supply-0.2.0.0 STM wrapper around Control.Concurrent.Supply
nightly-2026-01-18 stopwatch-0.1.0.7 A simple stopwatch utility
nightly-2026-01-18 storable-complex-0.2.3.0 Storable instance for Complex
nightly-2026-01-18 storable-endian-0.2.6.1 Storable instances with endianness
nightly-2026-01-18 storable-generic-0.1.0.5 Derive Storable instances with GHC.Generics
nightly-2026-01-18 storable-hetero-list-0.1.0.4 about Storable and Hetero list
nightly-2026-01-18 storable-peek-poke-0.1.0.2 class Sizable, Peek and Poke
nightly-2026-01-18 storable-record-0.0.7 Elegant definition of Storable instances for records
nightly-2026-01-18 storable-tuple-0.1 Storable instance for pairs and triples
nightly-2026-01-18 storablevector-0.2.13.2 Fast, packed, strict storable arrays with a list interface like ByteString
lts-9.21 storablevector-carray-0.0 Conversion between storablevector and carray
nightly-2026-01-18 store-0.7.20 Fast binary serialization
nightly-2026-01-18 store-core-0.4.4.7 Fast and lightweight binary serialization
nightly-2026-01-18 store-streaming-0.2.0.5 Streaming interfaces for `store`
lts-14.26 Strafunski-StrategyLib-5.0.1.0 Library for strategic programming
nightly-2026-01-18 stratosphere-1.0.1 EDSL for AWS CloudFormation
nightly-2026-01-18 Stream-0.4.7.2 A library for manipulating infinite lists
nightly-2026-01-18 streaming-0.2.4.0 an elementary streaming prelude and general stream type
nightly-2026-01-18 streaming-attoparsec-1.0.0.1 Attoparsec integration for the streaming ecosystem
nightly-2026-01-18 streaming-binary-0.3.0.1 Streaming interface to binary
nightly-2026-01-18 streaming-bytestring-0.3.4 Fast, effectful byte streams
lts-20.26 streaming-cassava-0.2.0.0 Cassava support for the streaming ecosystem
nightly-2026-01-18 streaming-commons-0.2.3.1 Common lower-level functions needed by various streaming data libraries
lts-9.21 streaming-utils-0.1.4.7 http, attoparsec, pipes and other utilities for the streaming libraries
nightly-2026-01-18 streaming-wai-0.1.1 Streaming Wai utilities
nightly-2026-01-18 streamly-0.11.0 Streaming data pipelines with declarative concurrency
nightly-2026-01-18 streamly-bytestring-0.2.3 Library for streamly and bytestring interoperation
nightly-2026-01-18 streamly-core-0.3.0 Streaming, parsers, arrays, serialization and more
lts-21.25 streamly-examples-0.1.3 Examples for Streamly
nightly-2026-01-18 streamly-process-0.4.0 Use OS processes as stream transformation functions
lts-14.26 streamproc-1.6.2 Stream Processer Arrow
nightly-2026-01-18 streams-3.3.3 Various Haskell 2010 stream comonads
lts-21.25 streamt-0.5.0.1 Simple, Fair and Terminating Backtracking Monad Transformer
nightly-2026-01-18 strict-0.5.1 Strict data types and String IO
nightly-2026-01-18 strict-base-types-0.8.1 Strict variants of the types provided in base
nightly-2026-01-18 strict-concurrency-0.2.4.3 Strict concurrency abstractions
nightly-2026-01-18 strict-lens-0.4.1 Lenses for types in strict package
nightly-2026-01-18 strict-list-0.1.7.6 Strict linked list
nightly-2026-01-18 strict-mutable-base-1.1.0.0 Strict variants of mutable data types from base
nightly-2026-01-18 strict-tuple-0.1.5.4 Strict tuples
lts-19.33 strict-tuple-lens-0.2 Optics for the `strict-tuple` library
lts-11.22 strict-types-0.1.2 A type level predicate ranging over strict types
nightly-2026-01-18 strict-wrapper-0.0.2.0 Lightweight strict types
nightly-2026-01-18 stringable-0.1.3 A Stringable type class, in the spirit of Foldable and Traversable
nightly-2026-01-18 stringbuilder-0.5.1 A writer monad for multi-line string literals
nightly-2026-01-18 string-class-0.1.7.2 String class library
nightly-2026-01-18 string-combinators-0.6.0.5 Polymorphic functions to build and combine stringlike values
nightly-2026-01-18 string-conv-0.2.0 Standardized conversion between string types
nightly-2026-01-18 string-conversions-0.4.0.1 Simplifies dealing with different types for strings
nightly-2026-01-18 string-interpolate-0.3.4.0 Haskell string/text/bytestring interpolation that just works
nightly-2026-01-18 stringprep-1.0.0 Implements the "StringPrep" algorithm
nightly-2026-01-18 string-qq-0.0.6 QuasiQuoter for non-interpolated strings, texts and bytestrings
nightly-2026-01-18 string-random-0.1.4.5 A library for generating random string from a regular experession
nightly-2026-01-18 stringsearch-0.3.6.6 Fast searching, splitting and replacing of ByteStrings
nightly-2026-01-18 string-transform-1.1.1 simple and easy haskell string transform wrapper
nightly-2026-01-18 string-variants-0.3.1.3 Constrained text newtypes
lts-22.44 stripe-concepts-1.0.3.4 Types for the Stripe API
lts-18.28 stripe-core-2.6.2 Stripe API for Haskell - Pure Core
lts-18.28 stripe-haskell-2.6.2 Stripe API for Haskell
lts-18.28 stripe-http-client-2.6.2 Stripe API for Haskell - http-client backend
nightly-2018-03-10 stripe-http-streams-2.3.0 Stripe API for Haskell - http-streams backend
lts-21.25 stripe-scotty-1.1.0.4 Listen for Stripe webhook events with Scotty
lts-22.44 stripe-signature-1.0.0.17 Verification of Stripe webhook signatures
lts-17.15 stripe-tests-2.6.2 Tests for Stripe API bindings for Haskell
lts-22.44 stripe-wreq-1.0.1.17 Use the Stripe API via Wreq
nightly-2026-01-18 strive-6.1.0.3 A client for the Strava V3 API
nightly-2026-01-18 strong-path-1.2.0.0 Strongly typed paths in Haskell
lts-24.28 strongweak-0.12.0 Convert between strong and weak representations of types
nightly-2026-01-18 structs-0.1.10 Strict GC'd imperative object-oriented programming with cheap pointers
lts-23.28 structured-0.1.1 Structure (hash) of your data types
lts-21.25 structured-cli-2.7.0.1 Application library for building interactive console CLIs
lts-10.10 structured-haskell-mode-1.1.0 Structured editing Emacs mode for Haskell
lts-24.28 stylish-haskell-0.15.1.0 Haskell code prettifier
nightly-2026-01-18 subcategories-0.2.1.2 Subcategories induced by class constraints
lts-8.24 success-0.2.6 A version of Either specialised for encoding of success or failure
lts-16.31 summoner-2.0.1.1 Tool for scaffolding fully configured batteries-included production-level Haskell projects
lts-16.31 summoner-tui-2.0.1.1 Tool for scaffolding fully configured batteries-included production-level Haskell projects using TUI
lts-19.33 sum-type-boilerplate-0.1.1 Library for reducing the boilerplate involved with sum types
nightly-2026-01-18 sundown-0.6 Bindings to the sundown markdown library
lts-22.44 superbuffer-0.3.1.2 Efficiently build a bytestring from smaller chunks
lts-9.21 superrecord-0.3.0.0 Supercharged anonymous records
nightly-2019-09-21 sv-1.4 Encode and decode separated values (CSV, PSV, ...)
lts-14.27 sv-cassava-0.3 Integration to use sv with cassava's parser
nightly-2019-09-21 sv-core-0.5 Encode and decode separated values (CSV, PSV, ...)
nightly-2026-01-18 svg-builder-0.1.1 DSL for building SVG
nightly-2026-01-18 SVGFonts-1.8.1 Fonts from the SVG-Font format
nightly-2026-01-18 svg-tree-0.6.2.4 SVG file loader and serializer
lts-18.28 swagger-0.3.0 Implementation of swagger data model
lts-24.28 swagger2-2.8.10 Swagger 2.0 data model
nightly-2018-05-10 swagger-petstore-0.0.1.8 Auto-generated swagger-petstore API Client
lts-18.28 sweet-egison-0.1.1.3 Shallow embedding implementation of non-linear pattern matching
nightly-2026-01-18 swish-0.10.11.0 A semantic web toolkit.
nightly-2026-01-18 swizzle-0.1.0.4 Swizzle functions
nightly-2026-01-18 swizzle-lens-0.1.0.0 Swizzle lens functions
nightly-2026-01-18 swizzle-modify-0.1.0.0 Swizzle modify functions
nightly-2026-01-18 swizzle-set-0.2.0.0 Swizzle set functions
nightly-2026-01-18 syb-0.7.3 Scrap Your Boilerplate
lts-20.26 syb-with-class-0.6.1.14 Scrap Your Boilerplate With Class
nightly-2026-01-18 sydtest-0.22.0.0 A modern testing framework for Haskell with good defaults and advanced testing features
nightly-2026-01-18 sydtest-aeson-0.2.0.1 An aeson companion library for sydtest
nightly-2026-01-18 sydtest-amqp-0.1.0.0 An amqp companion library for sydtest
nightly-2026-01-18 sydtest-autodocodec-0.0.0.0 An autodocodec companion library for sydtest
nightly-2026-01-18 sydtest-discover-0.0.0.4 Automatic test suite discovery for sydtest
nightly-2026-01-18 sydtest-hedgehog-0.4.0.0 A Hedgehog companion library for sydtest
nightly-2026-01-18 sydtest-hedis-0.0.0.0 An hedis companion library for sydtest
nightly-2026-01-18 sydtest-hspec-0.4.0.4 An Hspec companion library for sydtest
lts-24.28 sydtest-mongo-0.2.0.0 An mongoDB companion library for sydtest
nightly-2026-01-18 sydtest-persistent-0.1.0.0 A persistent companion library for sydtest
lts-21.25 sydtest-persistent-postgresql-0.2.0.3 An persistent-postgresql companion library for sydtest
nightly-2026-01-18 sydtest-persistent-sqlite-0.2.0.3 A persistent-sqlite companion library for sydtest
nightly-2026-01-18 sydtest-process-0.0.0.0 A typed-process companion library for sydtest
nightly-2026-01-18 sydtest-rabbitmq-0.1.0.0 An rabbitmq companion library for sydtest
nightly-2026-01-18 sydtest-servant-0.2.0.2 A servant companion library for sydtest
nightly-2026-01-18 sydtest-typed-process-0.0.0.0 A typed-process companion library for sydtest
nightly-2026-01-18 sydtest-wai-0.2.0.2 A wai companion library for sydtest
lts-24.28 sydtest-webdriver-0.0.0.1 A webdriver companion library for sydtest
lts-24.28 sydtest-webdriver-screenshot-0.1.0.0 A webdriver screenshot companion library for sydtest
lts-24.28 sydtest-webdriver-yesod-0.0.1.0 A webdriver+yesod companion library for sydtest
lts-24.28 sydtest-yesod-0.3.1.0 A yesod companion library for sydtest
nightly-2026-01-18 symbol-0.2.4.1 A 'Symbol' type for fast symbol comparison
nightly-2026-01-18 symbolize-1.0.3.1 Efficient global Symbol table, with Garbage Collection
nightly-2026-01-18 symengine-0.1.2.0 SymEngine symbolic mathematics engine for Haskell
nightly-2026-01-18 symmetry-operations-symbols-0.0.2.1 Derivation of symbols and coordinate triplets Library
nightly-2026-01-18 symparsec-2.0.0 Type level string parser combinators
lts-6.35 sync-mht-0.3.8.5 Fast incremental file transfer using Merkle-Hash-Trees
nightly-2026-01-18 synthesizer-alsa-0.5.0.6 Control synthesizer effects via ALSA/MIDI
nightly-2026-01-18 synthesizer-core-0.8.4 Audio signal processing coded in Haskell: Low level part
nightly-2026-01-18 synthesizer-dimensional-0.8.1.1 Audio signal processing with static physical dimensions
nightly-2026-01-18 synthesizer-midi-0.6.1.2 Render audio signals from MIDI files or realtime messages
nightly-2026-01-18 sysinfo-0.1.1 Haskell Interface for getting overall system statistics
nightly-2026-01-18 system-argv0-0.1.1 Get argv[0] as a FilePath
lts-2.22 system-canonicalpath-0.3.2.0 Abstract data type for canonical paths with some utilities
nightly-2026-01-18 systemd-2.4.0 Systemd facilities (Socket activation, Notify)
lts-22.44 systemd-socket-activation-1.1.0.2 Let systemd bind the server's socket for you
nightly-2026-01-18 system-fileio-0.3.16.7 Consistent filesystem interaction across GHC versions (deprecated)
nightly-2026-01-18 system-filepath-0.4.14.1 High-level, byte-based file and directory path manipulations (deprecated)
nightly-2026-01-18 system-info-0.5.2 Get the name of the operating system
nightly-2026-01-18 system-linux-proc-0.1.1.1 A library for accessing the /proc filesystem in Linux
lts-10.10 system-posix-redirect-1.1.0.1 A toy module to temporarily redirect a program's stdout
lts-8.24 syz-0.2.0.0 Scrap Your Zippers
nightly-2026-01-18 table-layout-1.0.0.2 Format tabular data as grid or table
nightly-2026-01-18 tabular-0.2.2.8 Two-dimensional data tables with rendering functions
nightly-2025-12-20 taffybar-4.1.1 A desktop bar similar to xmobar, but with more GUI
nightly-2026-01-18 tagchup-0.4.1.2 alternative package for processing of tag soups
nightly-2026-01-18 tagged-0.8.9 Haskell 98 phantom types to avoid unsafely passing dummy arguments
nightly-2026-01-18 tagged-binary-0.2.0.1 Provides tools for serializing data tagged with type information
nightly-2026-01-18 tagged-identity-0.1.5 Trivial monad transformer that allows identical monad stacks to have different types
nightly-2026-01-18 tagged-transformer-0.8.3 Monad transformer carrying an extra phantom type tag
nightly-2018-12-08 taggy-0.2.1 Efficient and simple HTML/XML parsing library
lts-8.24 taggy-lens-0.1.2 Lenses for the taggy html/xml parser
lts-21.25 tagshare-0.0 TagShare - explicit sharing with tags
nightly-2026-01-18 tagsoup-0.14.8 Parsing and extracting information from (possibly malformed) HTML/XML documents
nightly-2026-01-18 tagstream-conduit-0.5.6 streamlined html tag parser
nightly-2026-01-18 tao-1.0.0 Type-level assertion operators
nightly-2026-01-18 tao-example-1.0.0 Example usage of the tao package
nightly-2026-01-18 tar-0.7.0.0 Reading, writing and manipulating ".tar" archive files
nightly-2026-01-18 tar-conduit-0.4.1 Extract and create tar files using conduit for streaming
nightly-2026-01-18 tardis-0.5.0.1 Bidirectional state monad transformer
nightly-2026-01-18 tasty-1.5.3 Modern and extensible testing framework
nightly-2026-01-18 tasty-ant-xml-1.1.9 Render tasty output to XML for Jenkins
lts-11.22 tasty-auto-0.2.0.0 Auto discovery for Tasty with support for ingredients and test tree generation
nightly-2026-01-18 tasty-autocollect-0.4.4 Autocollection of tasty tests
nightly-2026-01-18 tasty-bench-0.5 Featherlight benchmark framework
lts-23.28 tasty-bench-fit-0.1.1 Determine time complexity of a given function
nightly-2026-01-18 tasty-checklist-1.0.8.0 Check multiple items during a tasty test
nightly-2026-01-18 tasty-dejafu-2.1.0.2 Deja Fu support for the Tasty test framework
nightly-2026-01-18 tasty-discover-5.2.0 Test discovery for the tasty framework
nightly-2026-01-18 tasty-expected-failure-0.12.3 Mark tasty tests as failure expected
nightly-2026-01-18 tasty-fail-fast-0.0.3 Adds the ability to fail a tasty test suite on first test failure
nightly-2026-01-18 tasty-focus-1.0.1 Simple focus mechanism for tasty
nightly-2026-01-18 tasty-golden-2.3.5 Golden tests support for tasty
nightly-2026-01-18 tasty-hedgehog-1.4.0.2 Integration for tasty and hedgehog
nightly-2026-01-18 tasty-hslua-1.1.1.1 Tasty helpers to test HsLua
nightly-2026-01-18 tasty-hspec-1.2.0.4 Hspec support for the Tasty test framework
nightly-2026-01-18 tasty-html-0.4.2.2 Render tasty output to HTML
nightly-2026-01-18 tasty-hunit-0.10.2 HUnit support for the Tasty test framework
lts-22.44 tasty-hunit-compat-0.2.0.1 Integration of `HUnit` with `tasty`
nightly-2026-01-18 tasty-inspection-testing-0.2.1 Inspection testing support for tasty
nightly-2026-01-18 tasty-kat-0.0.3 Known Answer Tests (KAT) framework for tasty
nightly-2026-01-18 tasty-leancheck-0.0.2 LeanCheck support for the Tasty test framework
nightly-2026-01-18 tasty-lua-1.1.2 Write tests in Lua, integrate into tasty
nightly-2026-01-18 tasty-papi-0.1.2.0 Bencmarking using instruction counting
nightly-2026-01-18 tasty-program-1.1.0 Use tasty framework to test whether a program executes correctly
nightly-2026-01-18 tasty-quickcheck-0.11.1 QuickCheck support for the Tasty test framework
nightly-2026-01-18 tasty-rerun-1.1.20 Rerun only tests which failed in a previous test run
nightly-2026-01-18 tasty-silver-3.3.2.1 A fancy test runner, including support for golden tests
nightly-2026-01-18 tasty-smallcheck-0.8.2 SmallCheck support for the Tasty test framework
lts-12.26 tasty-stats-0.2.0.4 Collect statistics of your Tasty testsuite
lts-24.28 tasty-sugar-2.2.3.3 Tests defined by Search Using Golden Answer References
nightly-2026-01-18 tasty-tap-0.1.0 TAP (Test Anything Protocol) Version 13 formatter for tasty
lts-20.26 tasty-test-reporter-0.1.1.4 Producing JUnit-style XML test reports
nightly-2026-01-18 tasty-th-0.1.7 Automatic tasty test case discovery using TH
nightly-2026-01-18 tasty-wai-0.1.2.0 Test 'wai' endpoints via Test.Tasty
lts-18.28 Taxonomy-2.2.0 Libary for parsing, processing and vizualization of taxonomy data
lts-6.27 TaxonomyTools-1.0.0 Tool for parsing, processing, comparing and visualizing taxonomy data
nightly-2026-01-18 TCache-0.13.3 A Transactional cache with user-defined persistence
nightly-2026-01-18 tce-conf-1.3 Very simple config file reading
lts-21.25 tcp-streams-1.0.1.1 One stop solution for tcp client and server with tls support
lts-14.26 tcp-streams-openssl-1.0.1.0 Tcp streams using openssl for tls support
nightly-2026-01-18 tdigest-0.3.1 On-line accumulation of rank-based statistics
lts-9.21 tdigest-Chart-0 Chart generation from tdigest
nightly-2026-01-18 teardown-0.5.0.1 Build safe and composable teardown sub-routines for resources
lts-8.24 telegram-api-0.6.3.0 Telegram Bot API bindings
lts-24.28 telegram-bot-api-7.4.5 Easy to use library for building Telegram bots. Exports Telegram Bot API
lts-24.28 telegram-bot-simple-0.14.4 Easy to use library for building Telegram bots
lts-6.35 tellbot-0.6.1 IRC tellbot
nightly-2026-01-18 tempgres-client-1.0.0 Client library for Tempgres
nightly-2026-01-18 template-0.2.0.10 Simple string substitution
nightly-2026-01-17 template-haskell-2.23.0.0 Support library for Template Haskell
nightly-2026-01-18 template-haskell-compat-v0208-0.1.9.6 Backward-compatibility layer for Template Haskell newer than 2.8
nightly-2026-01-18 template-haskell-lift-0.1.0.0 The 'Lift' typeclass
nightly-2026-01-18 template-haskell-quasiquoter-0.1.0.0 The 'QuasiQuoter' interface
nightly-2022-02-07 template-toolkit-0.1.1.0 Template Toolkit implementation for Haskell
nightly-2026-01-18 temporary-1.3 Portable temporary file and directory support
nightly-2026-01-18 temporary-rc-1.2.0.3 Portable temporary file and directory support for Windows and Unix, based on code from Cabal
nightly-2026-01-18 temporary-resourcet-0.1.0.1 Portable temporary files and directories with automatic deletion
lts-9.21 tensorflow-0.1.0.2 TensorFlow bindings
lts-9.21 tensorflow-core-ops-0.1.0.0 Haskell wrappers for Core Tensorflow Ops
lts-9.21 tensorflow-opgen-0.1.0.0 Code generation for TensorFlow operations
lts-9.21 tensorflow-ops-0.1.0.0 Friendly layer around TensorFlow bindings
lts-9.21 tensorflow-proto-0.1.0.0 TensorFlow protocol buffers
nightly-2026-01-18 tensorflow-test-0.1.0.0 Some common functions for test suites
lts-22.44 tensors-0.1.5 Tensor in Haskell
nightly-2026-01-18 tensort-1.1.0.0 Tunable sorting for responsive robustness and beyond
nightly-2026-01-18 termbox-2.0.0.2 termbox
nightly-2026-01-18 termbox-banana-2.0.0.1 termbox + reactive-banana
nightly-2026-01-18 termbox-bindings-c-0.1.0.3 termbox bindings
nightly-2026-01-18 termbox-bindings-hs-1.0.0.1 termbox bindings
nightly-2026-01-18 termbox-tea-1.0.0.1 termbox + The Elm Architecture
lts-11.22 termcolor-0.2.0.0 Composable terminal colors
nightly-2026-01-18 terminal-0.2.0.0 Portable terminal interaction library
nightly-2026-01-18 terminal-progress-bar-0.4.2 A progress bar in the terminal
nightly-2026-01-18 terminal-size-0.3.4 Get terminal window height and width
nightly-2026-01-17 terminfo-0.4.1.7 Haskell bindings to the terminfo library
lts-23.28 termonad-4.6.0.0 Terminal emulator configurable in Haskell
nightly-2026-01-18 test-certs-0.1.1.2 create temporary SSL certificates in tests
lts-11.22 test-fixture-0.5.1.0 Test monadic side-effects
nightly-2026-01-18 test-framework-0.8.2.3 Framework for running and organising tests, with HUnit and QuickCheck support
nightly-2026-01-18 test-framework-hunit-0.3.0.3 HUnit support for the test-framework package
nightly-2026-01-18 test-framework-leancheck-0.0.4 LeanCheck support for test-framework
nightly-2026-01-18 test-framework-quickcheck2-0.3.0.7 QuickCheck-2 support for the test-framework package
nightly-2026-01-18 test-framework-smallcheck-0.2 Support for SmallCheck tests in test-framework
lts-16.31 test-framework-th-0.2.4 Automagically generate the HUnit- and Quickcheck-bulk-code using Template Haskell
lts-6.35 test-framework-th-prime-0.0.9 Template Haskell for test framework
nightly-2026-01-18 test-fun-0.1.0.0 Testable functions
nightly-2026-01-18 testing-feat-1.1.1.1 Functional Enumeration of Algebraic Types
nightly-2026-01-18 testing-type-modifiers-0.1.0.1 Data type modifiers for property based testing
lts-8.24 test-invariant-0.4.5.0 Provide common invariants to be checked with QuickCheck
lts-2.22 testpack-2.1.3.0 Test Utililty Pack for HUnit and QuickCheck (unmaintained)
lts-8.24 test-simple-0.1.9 Simple Perl inspired testing
nightly-2026-01-18 texmath-0.13.0.2 Conversion between math formats
nightly-2026-01-17 text-2.1.3 An efficient packed Unicode text type
lts-10.10 text-all-0.4.1.1 Everything Data.Text related in one package
nightly-2026-01-18 text-ansi-0.3.0.1 Text styling for ANSI terminals
nightly-2026-01-18 text-binary-0.2.1.1 Binary instances for text types
nightly-2026-01-18 text-builder-1.0.0.5 Efficient and flexible strict text builder
nightly-2026-01-18 text-builder-core-0.1.1.3 Internals of "text-builder"
nightly-2026-01-18 text-builder-dev-0.4.0.1 Edge of developments for "text-builder"
nightly-2026-01-18 text-builder-linear-0.1.3 Builder for Text and ByteString based on linear types
nightly-2026-01-18 text-conversions-0.3.1.1 Safe conversions between textual types
nightly-2026-01-18 text-convert-0.1.0.1 Convert between various textual representations
nightly-2026-01-18 text-display-1.0.0.0 A typeclass for user-facing output
lts-24.28 text-encode-0.2.0.0 Classes and newtypes for deriving uniform textual encodings
lts-22.44 text-format-0.3.2.1 Text formatting
lts-11.22 text-generic-pretty-1.2.1 A generic, derivable, haskell pretty printer
nightly-2026-01-18 text-icu-0.8.0.5 Bindings to the ICU library
nightly-2026-01-18 text-iso8601-0.1.1 Converting time to and from ISO 8601 text
nightly-2026-01-18 text-latin1-0.3.1 Latin-1 (including ASCII) utility functions
nightly-2026-01-18 text-ldap-0.1.1.14 Parser and Printer for LDAP text data stream
nightly-2026-01-18 textlocal-0.1.0.5 Haskell wrapper for textlocal SMS gateway
nightly-2026-01-18 text-manipulate-0.3.1.0 Case conversion, word boundary manipulation, and textual subjugation
nightly-2026-01-18 text-metrics-0.3.3 Calculate various string metrics efficiently
nightly-2026-01-18 text-misc-yj-0.1.0.2 tribial tools about text
nightly-2026-01-18 text-postgresql-0.0.3.1 Parser and Printer of PostgreSQL extended types
nightly-2026-01-18 text-printer-0.5.0.2 Abstract interface for text builders/printers
nightly-2026-01-18 text-regex-replace-0.1.1.5 Easy replacement when using text-icu regexes
lts-18.28 text-region-0.3.1.0 Marking text regions
nightly-2026-01-18 text-rope-0.3 Text lines and ropes
nightly-2026-01-18 text-short-0.1.6.1 Memory-efficient representation of Unicode text strings
nightly-2026-01-18 text-show-3.11.3 Efficient conversion of values into Text
nightly-2026-01-18 text-show-instances-3.9.10 Additional instances for text-show
nightly-2026-01-18 text-zipper-0.13 A text editor zipper library
nightly-2026-01-18 tfp-1.0.2 Type-level integers, booleans, lists using type families
nightly-2026-01-18 tf-random-0.5 High-quality splittable pseudorandom number generator
nightly-2026-01-18 th-abstraction-0.7.2.0 Nicer interface for reified information about data types
nightly-2026-01-18 th-bang-compat-0.0.1.0 Compatibility for bang-type template
nightly-2026-01-18 th-compat-0.1.7 Backward- (and forward-)compatible Quote and Code types
nightly-2026-01-18 th-constraint-compat-0.0.1.0 Compatibility for type constraint template
nightly-2026-01-18 th-data-compat-0.1.3.1 Compatibility for data definition template of TH
nightly-2026-01-18 th-deepstrict-0.1.1.0 Check that datatypes are deep strict using Template Haskell
nightly-2026-01-18 th-desugar-1.18 Functions to desugar Template Haskell
nightly-2026-01-18 th-env-0.1.1 Template Haskell splices that expand to an environment variable
nightly-2026-01-18 these-1.2.1 An either-or-both data type
nightly-2026-01-18 these-lens-1.0.2 Lenses for These
nightly-2026-01-18 these-optics-1.0.2 Optics for These
nightly-2026-01-18 these-skinny-0.7.6 A fork of the 'these' package without the dependency bloat
nightly-2026-01-18 th-expand-syns-0.4.12.0 Expands type synonyms in Template Haskell ASTs
nightly-2026-01-18 th-extras-0.0.0.8 A grab bag of functions for use with Template Haskell
nightly-2026-01-18 th-lego-0.3.0.3 Template Haskell construction utilities
nightly-2026-01-18 th-lift-0.8.7 Derive Template Haskell's Lift class for datatypes
nightly-2026-01-18 th-lift-instances-0.1.20 Lift instances for template-haskell for common data types
nightly-2026-01-18 th-nowq-0.1.0.5 Template Haskell splice that expands to current time
nightly-2026-01-18 th-orphans-0.13.17 Orphan instances for TH datatypes
nightly-2026-01-18 th-printf-0.8 Quasiquoters for printf
nightly-2026-01-18 thread-hierarchy-0.3.0.2 Simple Haskell thread management in hierarchical manner
nightly-2026-01-18 thread-local-storage-0.2 Several options for thread-local-storage (TLS) in Haskell
nightly-2026-01-18 threads-0.5.1.8 Fork threads and wait for their result
nightly-2026-01-18 threads-extras-0.1.0.3 Extends the threads package with a bounded thread group
nightly-2026-01-18 thread-supervisor-0.2.0.0 A simplified implementation of Erlang/OTP like supervisor over thread
nightly-2026-01-18 thread-utils-context-0.3.0.4 Garbage-collected thread local storage
nightly-2026-01-18 thread-utils-finalizers-0.1.1.0 Perform finalization for threads
lts-11.22 threepenny-editors-0.5.6 Composable algebraic editors
nightly-2026-01-18 threepenny-gui-0.9.4.2 GUI framework that uses the web browser as a display
lts-11.22 threepenny-gui-flexbox-0.4.2 Flexbox layouts for Threepenny-gui
nightly-2026-01-18 th-reify-compat-0.0.1.5 Compatibility for the result type of TH reify
nightly-2026-01-18 th-reify-many-0.1.10 Recurseively reify template haskell datatype info
lts-18.28 throttle-io-stream-0.2.0.1 Throttler between arbitrary IO producer and consumer functions
lts-20.26 through-text-0.1.0.0 Convert textual types through Text without needing O(n^2) instances
lts-18.28 throwable-exceptions-0.1.0.9 throwable-exceptions gives the easy way to throw exceptions
nightly-2026-01-18 th-strict-compat-0.1.0.1 Compatibility shim for Bang and Strict in Template Haskell
nightly-2026-01-18 th-test-utils-1.2.3 Utility functions for testing Template Haskell code
lts-11.22 th-to-exp-0.0.1.1 Provides a way to persist data from compile-time to runtime
lts-5.16 thumbnail-plus-1.0.5 Generate thumbnails easily and safely
nightly-2026-01-18 th-utilities-0.2.5.2 Collection of useful functions for use with Template Haskell
nightly-2026-01-18 thyme-0.4.1 A faster time library
lts-12.26 tibetan-utils-0.1.1.5 Parse and display tibetan numerals
nightly-2026-01-18 tidal-1.10.1 Pattern language for improvised music
nightly-2026-01-18 tidal-core-1.10.1 Core pattern library for TidalCycles, a pattern language for improvised music
nightly-2026-01-18 tidal-link-1.2.0 Ableton Link integration for Tidal
lts-11.4 tidal-midi-0.9.5.2 MIDI support for tidal
nightly-2026-01-18 tile-0.3.0.0 Slippy map tile functionality
nightly-2026-01-17 time-1.14 A time library
nightly-2026-01-18 time-compat-1.9.8 Compatibility package for time
nightly-2026-01-18 time-domain-1.6 A library for time domains and durations
nightly-2026-01-18 time-hourglass-0.3.0 A simple and efficient time library
nightly-2026-01-18 timeit-2.0 Time monadic computations with an IO base
nightly-2026-01-18 time-lens-0.4.0.2 Lens-based interface to Data.Time data structures
nightly-2026-01-18 timelens-0.2.0.2 Lenses for the time package
nightly-2026-01-18 time-locale-compat-0.1.1.5 Compatibile module for time-format locale
nightly-2026-01-18 time-locale-vietnamese-1.0.0.0 Vietnamese locale for date and time format
nightly-2026-01-18 time-manager-0.3.0 Scalable timer
lts-11.22 timemap-0.0.7
lts-22.44 time-parsers-0.2 Parsers for types in `time`
lts-14.27 time-qq-0.0.1.0 Quasi-quoter for UTCTime times
nightly-2026-01-18 timerep-2.1.0.0 Parse and display time according to some RFCs (RFC3339, RFC2822, RFC822)
nightly-2026-01-18 timers-tick-0.5.0.4 tick based timers
nightly-2026-01-18 timer-wheel-1.0.0.1 A timer wheel
nightly-2026-01-18 timespan-0.4.0.0 Useful timespan datatype and functions
nightly-2026-01-18 timestats-0.2.1 A library for profiling time in Haskell applications
nightly-2026-01-18 time-units-1.0.0 A basic library for defining units of time as types
nightly-2026-01-18 time-units-types-0.2.0.1 Type-level representations of time durations
lts-24.28 timezone-olson-0.2.1 A pure Haskell parser and renderer for binary Olson timezone files
lts-24.28 timezone-olson-th-0.1.0.11 Load TimeZoneSeries from an Olson file at compile time
lts-24.28 timezone-series-0.1.13 Enhanced timezone handling for Data.Time
lts-14.27 tintin-1.10.1 A softer alternative to Haddock
lts-19.33 tinylog-0.15.0 Simplistic logging using fast-logger
lts-11.22 tinytemplate-0.1.2.0 A tiny text templating library
nightly-2026-01-18 titlecase-1.0.1 Convert English Words to Title Case
nightly-2026-01-18 tldr-0.9.2 Haskell tldr client
nightly-2026-01-18 tls-2.1.14 TLS protocol native implementation
lts-20.26 tls-debug-0.4.8 Set of programs for TLS testing and debugging
nightly-2026-01-18 tls-session-manager-0.0.8 In-memory TLS session DB and session ticket
nightly-2026-01-18 tls-sslkeylogfile-0.1.0.0 SSLKEYLOGFILE support for Haskell
nightly-2026-01-18 tlynx-0.9.0.0 Handle phylogenetic trees
nightly-2026-01-18 tmapchan-0.0.3 An insert-ordered multimap (indexed FIFO) which consumes values as you lookup
nightly-2026-01-18 tmapmvar-0.0.4 A single-entity stateful Map in STM, similar to tmapchan
lts-21.25 tmp-postgres-1.34.1.0 Start and stop a temporary postgres
nightly-2026-01-18 tmp-proc-0.7.2.5 Run 'tmp' processes in integration tests
nightly-2026-01-18 tmp-proc-postgres-0.7.2.4 Launch a PostgreSQL database in docker using tmp-proc
nightly-2026-01-18 tmp-proc-rabbitmq-0.7.2.4 Launch RabbitMQ in docker using tmp-proc
nightly-2026-01-18 tmp-proc-redis-0.7.2.4 Launch Redis in docker using tmp-proc
nightly-2026-01-18 token-bucket-0.1.0.1 Rate limiter using lazy bucket algorithm
nightly-2026-01-18 tokenize-0.3.0.1 Simple tokenizer for English text
nightly-2026-01-18 tomland-1.3.3.3 Bidirectional TOML serialization
nightly-2026-01-18 toml-parser-2.0.2.0 TOML 1.1.0 parser
nightly-2026-01-18 toml-reader-0.3.0.0 TOML format parser compliant with v1.0.0
nightly-2026-01-18 toml-reader-parse-0.1.1.1 Alternative parser for TOML values produced by the toml-reader package
lts-18.28 tonalude-0.1.1.1 A standard library for Tonatona framework
lts-14.26 tonaparser-0.1.0.0 Scalable way to pass runtime configurations for tonatona
lts-14.26 tonatona-0.1.1.0 meta application framework
lts-14.27 tonatona-logger-0.2.0.0 tonatona plugin for logging
lts-14.26 tonatona-persistent-postgresql-0.1.0.1 tonatona plugin for accessing PostgreSQL database
lts-14.27 tonatona-persistent-sqlite-0.1.0.1 tonatona plugin for accessing Sqlite database
lts-14.27 tonatona-servant-0.1.0.3 tonatona plugin for servant
nightly-2026-01-18 tools-yj-0.1.0.45 Tribial tools
nightly-2026-01-18 tophat-1.0.8.0 Template-to-Haskell preprocessor, and templating language
nightly-2026-01-18 topograph-1.0.1 Directed acyclic graphs
nightly-2026-01-18 torrent-10000.1.3 BitTorrent file parser and generater
nightly-2026-01-18 torsor-0.1.0.1 Torsor Typeclass
lts-22.44 tostring-0.2.1.1 The ToString class
lts-14.27 TotalMap-0.1.1.1 A total map datatype
nightly-2026-01-18 tracing-0.0.7.4 Distributed tracing
lts-21.25 tracing-control-0.0.7.3 Distributed tracing
lts-9.21 tracy-0.1.4.0 Convenience wrappers for non-intrusive debug tracing
nightly-2026-01-18 transaction-0.1.1.4 Monadic representation of transactions
nightly-2026-01-17 transformers-0.6.1.2 Concrete functor and monad transformers
nightly-2026-01-18 transformers-base-0.4.6 Lift computations from the bottom of a transformer stack
lts-19.33 transformers-bifunctors-0.1 Bifunctors over monad transformers
nightly-2026-01-18 transformers-compat-0.7.2 A small compatibility shim for the transformers library
nightly-2026-01-18 transformers-either-0.1.4 An Either monad transformer
lts-21.25 transformers-fix-1.0 Monad transformer for evaluating to a fixpoint
nightly-2019-03-05 transformers-lift-0.2.0.1 Ad-hoc type classes for lifting
lts-21.25 transient-0.7.0.0 composing programs with multithreading, events and distributed computing
lts-11.22 transient-universe-0.4.6.1 Remote execution and map-reduce: distributed computing for Transient
nightly-2026-01-18 traverse-with-class-1.0.1.1 Generic applicative traversals
nightly-2026-01-18 tree-diff-0.3.4 Diffing of (expression) trees
nightly-2026-01-18 tree-fun-0.8.1.0 Library for functions pertaining to tree exploration and manipulation
nightly-2026-01-18 tree-view-0.5.1 Render trees as foldable HTML and Unicode art
lts-11.22 tries-0.0.5 Various trie implementations in Haskell
nightly-2026-01-18 trie-simple-0.4.4 Simple Map-based Trie
nightly-2026-01-18 trifecta-2.1.4 A modern parser combinator library with convenient diagnostics
nightly-2026-01-18 trimdent-0.1.0.0 A utility for neat multiline string trimming
lts-21.25 triplesec-0.2.2.1 TripleSec is a simple, triple-paranoid, symmetric encryption library
nightly-2026-01-18 trivial-constraint-0.7.0.0 Constraints that any type, resp. no type fulfills
lts-23.28 true-name-0.2.0.0 Template Haskell hack to violate module abstractions
nightly-2026-01-18 tsv2csv-0.1.0.2 Convert tsv to csv
nightly-2026-01-18 ttc-1.5.0.1 Textual Type Classes
lts-19.33 ttl-hashtables-1.4.1.0 Extends hashtables so that entries added can be expired after a TTL
nightly-2026-01-18 ttrie-0.1.2.2 Contention-free STM hash map
lts-9.21 tttool-1.7.0.3 Working with files for the Tiptoi® pen
nightly-2026-01-18 tuple-0.3.0.2 Various functions on tuples
nightly-2026-01-18 tuples-0.1.0.0 Small monomorphic tuples
nightly-2026-01-18 tuples-homogenous-h98-0.1.1.0 Wrappers for n-ary tuples with Traversable and Applicative/Monad instances
nightly-2026-01-18 tuple-sop-0.3.1.0 functions on n-ary tuples using generics-sop
nightly-2026-01-18 tuple-th-0.2.5 Generate (non-recursive) utility functions for tuples of statically known size
lts-24.28 turtle-1.6.2 Shell programming, Haskell-style
lts-11.22 turtle-options-0.1.0.4 Collection of command line options and parsers for these options
lts-22.44 twitter-conduit-0.6.1 Twitter API package with conduit interface and Streaming API support
lts-9.21 twitter-feed-0.2.0.11 Client for fetching Twitter timeline via Oauth
nightly-2026-01-18 twitter-types-0.11.0 Twitter JSON parser and types
nightly-2026-01-18 twitter-types-lens-0.11.0 Twitter JSON types (lens powered)
lts-10.10 type-aligned-0.9.6 Various type-aligned sequence data structures
lts-11.22 type-assertions-0.1.0.0 Runtime type assertions for testing
nightly-2026-01-18 typecheck-plugin-nat-simple-0.1.0.12 Simple type check plugin which calculate addition, subtraction and less-or-equal-than
lts-11.22 type-combinators-0.2.4.3 A collection of data types for type-level programming
lts-11.22 type-combinators-singletons-0.2.1.0 Interop between /type-combinators/ and /singletons/
lts-19.33 TypeCompose-0.9.14 Type composition classes & instances
nightly-2026-01-18 typed-process-0.2.13.0 Run external processes, with strong typing of streams
nightly-2026-01-18 typed-uuid-0.2.0.0 Phantom-Typed version of UUID
lts-8.24 type-eq-0.5 Type equality evidence you can carry around
nightly-2026-01-18 type-equality-1.0.1 Data.Type.Equality compat package
nightly-2026-01-18 type-errors-0.2.0.2 Tools for writing better type errors
lts-19.33 type-errors-pretty-0.0.1.2 Combinators for writing pretty type errors easily
nightly-2026-01-18 type-flip-0.1.0.0
nightly-2026-01-18 type-fun-0.1.3 Collection of widely reimplemented type families
nightly-2026-01-18 type-hint-0.1 Guide type inference with proxy values
nightly-2026-01-18 type-level-bytestrings-0.2.0 Tools for manipulating type-level bytes and bytestrings
nightly-2026-01-18 type-level-integers-0.0.1 Provides integers lifted to the type level
nightly-2026-01-18 type-level-kv-list-2.0.2.0 Type level Key-Value list
nightly-2026-01-18 type-level-natural-number-2.0 Simple type level natural numbers
nightly-2026-01-18 type-level-numbers-0.1.1.2 Type level numbers implemented using type families
nightly-2026-01-18 type-level-show-0.3.0 Utilities for writing Show-like type families
nightly-2026-01-18 typelevel-tools-yj-0.1.0.9 type level tools
lts-9.21 type-list-0.5.0.0 Operations on type-level lists and tuples
nightly-2026-01-18 typelits-witnesses-0.4.1.0 Existential witnesses, singletons, and classes for operations on GHC TypeLits
nightly-2026-01-18 type-map-0.1.7.0 Type-indexed maps
nightly-2026-01-18 type-natural-1.3.0.2 Type-level natural and proofs of their properties
nightly-2026-01-18 typenums-0.1.4 Type level numbers using existing Nat functionality
nightly-2026-01-18 type-of-html-1.6.2.0 High performance type driven html generation
nightly-2026-01-18 type-of-html-static-0.1.0.2 Optimize static parts of type-of-html
lts-20.26 type-operators-0.2.0.0 Various type-level operators
nightly-2022-02-27 typerep-map-0.4.0.0 Efficient implementation of a dependent map with types as keys
nightly-2026-01-18 type-rig-0.1 Classes for the rig (sums and products) of types
lts-6.35 types-compat-0.1.1 ghc-7.6/7.8 compatible GHC.TypeLits, Data.Typeable and Data.Proxy
nightly-2026-01-18 type-set-0.1.0.0 Type set
nightly-2026-01-18 type-spec-0.4.0.0 Type Level Specification by Example
nightly-2026-01-18 typography-geometry-1.0.1.0 Drawings for printed text documents
nightly-2026-01-18 typst-0.8.1 Parsing and evaluating typst syntax
nightly-2026-01-18 typst-symbols-0.1.9.1 Symbol and emoji lookup for typst language
nightly-2026-01-18 tz-0.1.3.6 Efficient time zone handling
nightly-2026-01-18 tzdata-0.2.20250115.0 Time zone database (as files and as a module)
nightly-2026-01-18 tztime-0.1.1.0 Safe timezone-aware handling of time
nightly-2026-01-18 ua-parser-0.7.7.0 A library for parsing User-Agent strings, official Haskell port of ua-parser
lts-14.26 ucam-webauth-0.1.0.0 The Ucam-Webauth protocol, used by Raven
lts-14.27 ucam-webauth-types-0.1.0.0 Types for the Ucam-Webauth protocol, as used by Raven
lts-2.22 udbus-0.2.1 Small DBus implementation
nightly-2026-01-18 uglymemo-0.1.0.1 A simple (but internally ugly) memoization function
nightly-2026-01-18 ulid-0.3.3.0 Implementation of ULID - Universally Unique Lexicographically Sortable Identifier
nightly-2026-01-18 unagi-chan-0.4.1.4 Fast concurrent queues with a Chan-like API, and more
nightly-2019-07-12 unbeliever-0.9.3.2 Opinionated Haskell Interoperability
lts-9.21 unbound-0.5.1 Generic support for programming with names and binders
nightly-2026-01-18 unbounded-delays-0.1.1.1 Unbounded thread delays and timeouts
nightly-2026-01-18 unbound-generics-0.4.4 Support for programming with names and binders using GHC Generics
nightly-2026-01-18 unboxed-ref-0.4.0.0 Fast unboxed references for ST and IO monad
nightly-2026-01-18 unboxing-vector-0.2.0.0 A newtype-friendly variant of unboxed vectors
nightly-2026-01-18 uncaught-exception-0.1.0 Customize uncaught exception handling
nightly-2026-01-18 uncertain-0.4.0.1 Manipulating numbers with inherent experimental/measurement uncertainty
nightly-2026-01-18 unconditional-jump-1.0.0 Unconditional jumps
nightly-2026-01-18 unconstrained-0.1.0.2 Null constraint
nightly-2026-01-18 unexceptionalio-0.5.1 IO without any non-error, synchronous exceptions
nightly-2026-01-18 unexceptionalio-trans-0.5.2 A wrapper around UnexceptionalIO using monad transformers
nightly-2026-01-18 unfoldable-1.1 Class of data structures that can be unfolded
nightly-2026-01-18 unfoldable-restricted-0.0.3 An alternative to the Unfoldable typeclass
lts-22.44 unfork-1.0.0.2 Make any action thread safe
nightly-2026-01-18 unicode-0.0.1.1 Construct and transform unicode characters
nightly-2026-01-18 unicode-collation-0.1.3.6 Haskell implementation of the Unicode Collation Algorithm
nightly-2026-01-18 unicode-data-0.8.0 Access Unicode Character Database (UCD)
nightly-2026-01-18 unicode-show-0.1.1.1 print and show in unicode
nightly-2026-01-18 unicode-transforms-0.4.0.1 Unicode normalization
nightly-2026-01-18 unidecode-0.1.0.4 Haskell binding of Unidecode
nightly-2026-01-18 unification-fd-0.12.0.2 Simple generic unification algorithms
nightly-2026-01-18 union-0.1.3 Extensible type-safe unions
nightly-2026-01-18 union-angle-0.1.0.1 Union type that include radian angle and degree angle
nightly-2026-01-18 union-color-0.1.4.0 Unify verious color formats
lts-20.26 union-find-0.2 Efficient union and equivalence testing of sets
nightly-2026-01-18 union-find-array-0.1.0.4 union find data structure
nightly-2026-01-18 unipatterns-0.0.0.0 Helpers which allow safe partial pattern matching in lambdas
nightly-2026-01-18 uniplate-1.6.13 Help writing simple, concise and fast generic operations
lts-18.28 uniprot-kb-0.1.2.0 UniProt-KB format parser
nightly-2026-01-18 uniq-deep-1.2.1 uniq-deep
nightly-2026-01-18 unique-0.0.2 Fully concurrent unique identifiers
nightly-2025-11-23 Unique-0.4.8.0 It provides the functionality like unix "uniq" utility
nightly-2026-01-18 unique-logic-0.4.0.1 Solve simple simultaneous equations
nightly-2026-01-18 unique-logic-tf-0.5.1.1 Solve simple simultaneous equations
nightly-2026-01-18 uniqueness-periods-vector-stats-0.4.0.0 A very basic descriptive statistics
nightly-2026-01-18 unit-constraint-0.0.0 Extremely simple typeclass
nightly-2026-01-18 units-2.4.1.5 A domain-specific type system for dimensional analysis
nightly-2026-01-18 units-defs-2.2.1 Definitions for use with the units package
nightly-2026-01-18 units-parser-0.1.1.5 A parser for units of measure
nightly-2026-01-18 universe-1.2.3 A class for finite and recursively enumerable types
nightly-2026-01-18 universe-base-1.1.4 A class for finite and recursively enumerable types
nightly-2026-01-18 universe-dependent-sum-1.3.1 Universe instances for types from dependent-sum
lts-18.28 universe-instances-base-1.1 Universe instances for types from the base package
nightly-2026-01-18 universe-instances-extended-1.1.4 Universe instances for types from selected extra packages
lts-18.28 universe-instances-trans-1.1 Universe instances for types from the transformers and mtl packages
nightly-2026-01-18 universe-reverse-instances-1.1.2 Instances of standard classes that are made possible by enumerations
nightly-2026-01-18 universe-some-1.2.2 Universe instances for Some from some
nightly-2026-01-18 universum-1.8.3 Custom prelude used in Serokell
nightly-2026-01-17 unix-2.8.7.0 POSIX functionality
nightly-2026-01-18 unix-bytestring-0.4.0.3 Unix/Posix-specific functions for ByteStrings
nightly-2026-01-18 unix-compat-0.7.4.1 Portable POSIX-compatibility layer
nightly-2026-01-18 unix-time-0.4.17 Unix time parser/formatter and utilities
nightly-2017-08-20 Unixutils-1.54.1 A crude interface between Haskell and Unix-like operating systems
nightly-2026-01-18 unjson-0.15.4 Bidirectional JSON parsing and generation
lts-3.22 unlambda-0.1.4.1 Unlambda interpreter
nightly-2026-01-18 unlifted-0.2.3.0 Unlifted and levity-polymorphic types
nightly-2026-01-18 unliftio-0.2.25.1 The MonadUnliftIO typeclass for unlifting monads to IO (batteries included)
nightly-2026-01-18 unliftio-core-0.2.1.0 The MonadUnliftIO typeclass for unlifting monads to IO
nightly-2026-01-18 unliftio-path-0.0.2.0 UnliftIO using well-typed Paths
nightly-2026-01-18 unliftio-pool-0.4.3.1 Data.Pool generalized to MonadUnliftIO
nightly-2026-01-18 unliftio-streams-0.2.0.0 Generalization of io-streams to MonadUnliftIO
nightly-2026-01-18 unlit-0.4.0.0 Tool to convert literate code between styles or to code
nightly-2026-01-18 unordered-containers-0.2.21 Efficient hashing-based container types
lts-16.31 unordered-intmap-0.1.1 A specialization of `HashMap Int v`
nightly-2026-01-18 unsafe-0.0 Unified interface to unsafe functions
lts-11.22 uom-plugin-0.3.0.0 Units of measure as a GHC typechecker plugin
lts-20.26 urbit-hob-0.3.3 Hoon-style atom manipulation and printing functions
nightly-2026-01-18 uri-bytestring-0.4.0.1 Haskell URI parsing as ByteStrings
nightly-2026-01-18 uri-bytestring-aeson-0.1.0.9 Aeson instances for URI Bytestring
nightly-2026-01-18 uri-encode-1.5.0.7 Unicode aware uri-encoding
nightly-2026-01-18 uri-templater-1.0.0.1 Parsing & Quasiquoting for RFC 6570 URI Templates
nightly-2026-01-18 url-2.1.3 A library for working with URLs
nightly-2026-01-18 urlpath-11.0.2 Painfully simple URL deployment
lts-23.28 userid-0.1.3.8 The UserId type and useful instances for web development
nightly-2026-01-18 users-0.5.0.0 A library simplifying user management for web applications
lts-10.10 users-persistent-0.5.0.2 A persistent backend for the users package
lts-21.25 users-postgresql-simple-0.5.0.2 A PostgreSQL backend for the users package
nightly-2026-01-18 users-test-0.5.0.1 Library to test backends for the users library
lts-18.28 utf8-conversions-0.1.0.4 A string conversion library that assumes utf8
nightly-2026-01-18 utf8-light-0.4.4.0 Unicode
nightly-2026-01-18 utf8-string-1.0.2 Support for reading and writing UTF8 Strings
lts-18.28 util-0.1.17.1 Utilities
nightly-2026-01-18 utility-ht-0.0.17.2 Various small helper functions for Lists, Maybes, Tuples, Functions
nightly-2026-01-18 uuid-1.3.16 For creating, comparing, parsing and printing Universally Unique Identifiers
lts-8.24 uuid-orphans-1.4.1 Orphan instances for the UUID datatype
nightly-2026-01-18 uuid-types-1.0.6 Type definitions for Universally Unique Identifiers
lts-9.21 uu-interleaved-0.2.0.0 Providing an interleaving combinator for use with applicative/alternative style implementations
lts-9.21 uu-parsinglib-2.9.1.1 Fast, online, error-correcting, monadic, applicative, merging, permuting, interleaving, idiomatic parser combinators
lts-11.22 vado-0.0.10 Runs commands on remote machines using ssh
nightly-2026-01-18 valida-1.1.0 Simple applicative validation for product types, batteries included!
nightly-2026-01-18 valida-base-0.2.0 Simple applicative validation for product types, batteries included!
nightly-2026-01-18 validate-input-0.5.0.0 Input validation combinator library
nightly-2026-01-18 validation-1.1.3 A data-type like Either but with an accumulating Applicative
nightly-2026-01-18 validation-selective-0.2.0.0 Lighweight pure data validation based on Applicative and Selective functors
lts-21.25 validationt-0.3.0 Straightforward validation monad
nightly-2026-01-18 validity-0.12.1.0 Validity typeclass
nightly-2026-01-18 validity-aeson-0.2.0.5 Validity instances for aeson
nightly-2026-01-18 validity-bytestring-0.4.1.1 Validity instances for bytestring
nightly-2026-01-18 validity-case-insensitive-0.0.0.0 Validity instances for case-insensitive
nightly-2026-01-18 validity-containers-0.5.0.5 Validity instances for containers
nightly-2026-01-18 validity-network-uri-0.0.0.1 Validity instances for URI
nightly-2026-01-18 validity-path-0.4.0.1 Validity instances for Path
nightly-2026-01-18 validity-persistent-0.0.0.0 Validity instances for persistent-related types
nightly-2026-01-18 validity-primitive-0.0.0.1 Validity instances for primitive
nightly-2026-01-18 validity-scientific-0.2.0.3 Validity instances for scientific
nightly-2026-01-18 validity-text-0.3.1.3 Validity instances for text
nightly-2026-01-18 validity-time-0.5.0.0 Validity instances for time
nightly-2026-01-18 validity-unordered-containers-0.2.0.3 Validity instances for unordered-containers
nightly-2026-01-18 validity-uuid-0.1.0.3 Validity instances for uuid
nightly-2026-01-18 validity-vector-0.2.0.3 Validity instances for vector
nightly-2026-01-18 valor-1.0.0.0 Simple and powerful data validation
lts-20.26 variable-media-field-0.1.0.0 Simple type for representing one of several media types
lts-20.26 variable-media-field-dhall-0.1.0.0 Dhall instances for VF
lts-20.26 variable-media-field-optics-0.1.0.0 Optics for variable-media-field
nightly-2026-01-18 variant-1.0.1 Variant and EADT
nightly-2026-01-18 vary-0.1.1.3 Vary: Friendly and fast polymorphic variants (open unions/coproducts/extensible sums)
nightly-2026-01-18 varying-0.8.1.0 FRP through value streams and monadic splines
nightly-2026-01-18 vault-0.3.1.6 a persistent store for values of arbitrary types
nightly-2026-01-18 vcr-0.1.0 Record and replay HTTP interactions
lts-6.35 vcsgui-0.1.3.0 GUI library for source code management systems
nightly-2026-01-18 vcs-ignore-0.0.2.0 Library for handling files ignored by VCS systems
lts-11.22 vcswrapper-0.1.6 Wrapper for source code management systems
lts-24.28 vec-0.5.1 Vec: length-indexed (sized) list
lts-6.35 vect-0.4.7 A low-dimensional linear algebra library, tailored to computer graphics
nightly-2026-01-18 vector-0.13.2.0 Efficient Arrays
nightly-2026-01-18 vector-algorithms-0.9.1.0 Efficient algorithms for vector arrays
nightly-2026-01-18 vector-binary-instances-0.2.5.2 Instances of Data.Binary for vector
nightly-2026-01-18 vector-buffer-0.4.1 A buffer compatible with Data.Vector.*
nightly-2026-01-18 vector-builder-0.3.8.7 Vector builder
nightly-2026-01-18 vector-bytes-instances-0.1.1 Serial (from the bytes package) for Vector (from the vector package)
lts-20.26 vector-circular-0.1.4 circular vectors
nightly-2026-01-18 vector-extras-0.3 Utilities for the "vector" library
nightly-2026-01-18 vector-fftw-0.1.4.1 A binding to the fftw library for one-dimensional vectors
nightly-2026-01-18 vector-hashtables-0.1.2.1 Efficient vector-based mutable hashtables implementation
nightly-2026-01-18 vector-instances-3.4.3 Orphan Instances for 'Data.Vector'
nightly-2026-01-18 vector-mmap-0.0.3 Memory map immutable and mutable vectors
nightly-2026-01-18 vector-quicksort-0.2 Fast and flexible quicksort implementation for mutable vectors
nightly-2026-01-18 vector-rotcev-0.1.0.2 Vectors with O(1) reverse
nightly-2026-01-18 vector-sized-1.6.1 Size tagged vectors
nightly-2026-01-18 vector-space-0.19 Vector & affine spaces, linear maps, and derivatives
nightly-2016-01-24 vector-space-points-0.2.1.1 A type for points, as distinct from vectors
nightly-2026-01-18 vector-split-1.0.0.4 Combinator library for splitting vectors
nightly-2026-01-18 vector-stream-0.1.0.1 Efficient Streams
nightly-2026-01-18 vector-th-unbox-0.2.2 Deriver for Data.Vector.Unboxed using Template Haskell
lts-19.33 vectortiles-1.5.1 GIS Vector Tiles, as defined by Mapbox
nightly-2026-01-18 verbosity-0.4.0.0 Simple enum that encodes application verbosity
nightly-2026-01-18 verset-0.0.1.11 Small alternative prelude
nightly-2026-01-18 versions-6.0.8 Types and parsers for software version numbers
nightly-2026-01-18 vessel-0.3.0.2 Functor-parametric containers
nightly-2026-01-18 vformat-0.14.1.0 A Python str.format() like formatter
lts-18.28 vformat-aeson-0.1.0.1 Extend vformat to Aeson datatypes
nightly-2026-01-18 vformat-time-0.1.0.0 Extend vformat to time datatypes
lts-11.22 vhd-0.2.2 Provides functions to inspect and manipulate virtual hard disk (VHD) files
nightly-2026-01-18 ViennaRNAParser-1.3.3 Libary for parsing ViennaRNA package output
lts-14.26 viewprof-0.0.0.32 Text-based interactive GHC .prof viewer
nightly-2026-01-18 vinyl-0.14.3 Extensible Records
nightly-2026-01-18 vinyl-loeb-0.0.1.0 Loeb's theorem for extensible records
lts-9.21 vinyl-utils-0.3.0.0 Utilities for vinyl
nightly-2026-01-18 Vis-1.0.0 Painless 3D graphics, no affiliation with gloss
nightly-2026-01-18 visualize-type-inference-0.0.1.0 Simulate simple constraint-based type inference
lts-21.25 vivid-0.5.2.0 Sound synthesis with SuperCollider
nightly-2026-01-18 vivid-osc-0.5.0.0 Open Sound Control encode/decode
nightly-2026-01-18 vivid-supercollider-0.4.1.2 Implementation of SuperCollider server specifications
nightly-2026-01-18 void-0.7.4 A Haskell 98 logically uninhabited data type
nightly-2026-01-18 vty-6.5 A simple terminal UI library
nightly-2026-01-18 vty-crossplatform-0.5.0.0 Cross-platform support for Vty
nightly-2026-01-18 vty-unix-0.2.0.0 Unix backend for Vty
nightly-2026-01-18 vty-windows-0.2.0.4 Windows backend for Vty
nightly-2026-01-18 wai-3.2.4 Web Application Interface
nightly-2026-01-18 wai-app-static-3.1.9 WAI application for static serving
nightly-2026-01-18 wai-cli-0.2.3 Command line runner for Wai apps (using Warp) with TLS, CGI, socket activation & graceful shutdown
nightly-2026-01-18 wai-conduit-3.0.0.4 conduit wrappers for WAI
lts-22.44 wai-control-0.2.0.0 Run wai Applications in IO based monads
nightly-2026-01-18 wai-cors-0.2.7 CORS for WAI
nightly-2026-01-18 wai-enforce-https-1.0.0.0 Enforce HTTPS in Wai server app safely
nightly-2026-01-18 wai-eventsource-3.0.0 WAI support for server-sent events (deprecated)
nightly-2026-01-18 wai-extra-3.1.18 Provides some basic WAI handlers and middleware
nightly-2026-01-18 wai-feature-flags-0.1.0.8 Feature flag support for WAI applications
nightly-2026-01-18 wai-handler-launch-3.0.3.1 Launch a web app in the default browser
nightly-2026-01-18 wai-logger-2.5.0 A logging system for WAI
lts-18.28 wai-middleware-auth-0.2.5.1 Authentication middleware that secures WAI application
nightly-2026-01-18 wai-middleware-bearer-1.0.3 WAI Middleware for Bearer Token Authentication
nightly-2026-01-18 wai-middleware-caching-0.1.0.2 WAI Middleware to cache things
nightly-2026-01-18 wai-middleware-caching-lru-0.1.0.0 Initial project template from stack
nightly-2026-01-18 wai-middleware-caching-redis-0.2.0.0 Cache Wai Middleware using Redis backend
nightly-2026-01-18 wai-middleware-clacks-0.1.0.1 GNU Terry Pratchett - Add the X-Clacks-Overhead Header to Wai Responses
lts-12.26 wai-middleware-consul-0.1.0.2 Wai Middleware for Consul
lts-9.21 wai-middleware-content-type-0.5.1 Route to different middlewares based on the incoming Accept header
lts-14.26 wai-middleware-crowd-0.1.4.2 Middleware and utilities for using Atlassian Crowd authentication
nightly-2026-01-18 wai-middleware-delegate-0.2.0.1 WAI middleware that delegates handling of requests
nightly-2026-01-18 wai-middleware-metrics-0.2.4 A WAI middleware to collect EKG request metrics
nightly-2026-01-18 wai-middleware-prometheus-1.0.1.0 WAI middlware for exposing http://prometheus.io metrics
lts-11.22 wai-middleware-rollbar-0.10.0 Middleware that communicates to Rollbar
nightly-2026-01-18 wai-middleware-static-0.9.4 WAI middleware that serves requests to static files
nightly-2026-01-18 wai-middleware-throttle-0.3.0.1 WAI Middleware for Request Throttling
lts-14.26 wai-middleware-travisci-0.1.0 WAI middleware for authenticating webhook payloads from Travis CI
lts-9.21 wai-middleware-verbs-0.3.2 Route different middleware responses based on the incoming HTTP verb
lts-14.26 wai-predicates-0.10.0 WAI request predicates
nightly-2026-01-18 wai-rate-limit-0.3.0.0 Rate limiting as WAI middleware
nightly-2026-01-18 wai-rate-limit-redis-0.2.0.1 Redis backend for rate limiting as WAI middleware
lts-7.24 wai-request-spec-0.10.2.4 Declarative request parsing
lts-11.22 wai-route-0.3.1.2 Minimalistic, efficient routing for WAI
lts-9.21 wai-routes-0.10.0 Typesafe URLs for Wai applications
lts-11.22 wai-routing-0.13.0 Declarative routing for WAI
nightly-2026-01-18 wai-saml2-0.7.0 SAML2 assertion validation as WAI middleware
nightly-2026-01-18 wai-session-0.3.3 Flexible session middleware for WAI
nightly-2026-01-18 wai-session-postgresql-0.2.1.3 PostgreSQL backed Wai session store
lts-22.44 wai-session-redis-0.1.0.5 Simple Redis backed wai-session backend
nightly-2026-01-18 wai-slack-middleware-0.2.0 A Slack middleware for WAI
lts-9.21 waitra-0.0.4.0 A very simple Wai router
nightly-2026-01-18 wai-transformers-0.2.0 Monad transformers for WAI and WebSockets
lts-6.35 wai-util-0.8 Collection of utility functions for use with WAI
nightly-2026-01-18 wai-websockets-3.0.1.2 Provide a bridge between WAI and the websockets package
nightly-2026-01-18 wakame-0.1.0.0 Functions to manipulate records
nightly-2026-01-18 warp-3.4.12 A fast, light-weight web server for WAI applications
nightly-2026-01-18 warp-tls-3.4.13 HTTP over TLS support for Warp via the TLS package
lts-21.25 warp-tls-uid-0.2.0.6 set group and user id before running server
nightly-2026-01-18 wave-0.2.1 Work with WAVE and RF64 files
lts-11.22 wavefront-0.7.1.2 Wavefront OBJ loader
nightly-2015-12-14 WaveFront-0.1.0.2 Parsers and utilities for the OBJ WaveFront 3D model format
lts-9.21 wavefront-obj-0.1.0.1 Wavefront .obj file loader
nightly-2026-01-18 wcwidth-0.0.2 Native wcwidth
lts-14.26 web3-0.8.3.2 Ethereum API for Haskell
nightly-2026-01-18 web3-tools-0.1.0.0 Tools for working with Crypto/Web3
lts-20.26 webby-1.1.1 A super-simple web server framework
nightly-2026-01-18 web-cookiejar-0.1.3.1 Parsing/printing of persistent web cookies
nightly-2026-01-18 webdriver-0.14.0.0 a Haskell client for the Selenium WebDriver protocol
lts-11.22 webdriver-angular-0.1.11 Webdriver actions to assist with testing a webpage which uses Angular.Js
nightly-2026-01-17 webdriver-precore-0.1.0.2 A typed wrapper for W3C WebDriver protocol. A base for other libraries
lts-24.28 webdriver-wrapper-0.2.0.1 Wrapper around the webdriver package that automatically manages Selenium
nightly-2026-01-18 webex-teams-api-0.2.0.1 A Haskell bindings for Webex Teams API
nightly-2026-01-18 webex-teams-conduit-0.2.0.1 Conduit wrapper of Webex Teams List API
lts-18.28 webex-teams-pipes-0.2.0.1 Pipes wrapper of Webex Teams List API
lts-6.35 web-fpco-0.1.1.0 Wrappers for web frameworks to ease usage with the FP Complete environment
nightly-2026-01-18 webgear-core-1.5.0 Composable, type-safe library to build HTTP APIs
lts-24.28 webgear-openapi-1.4.0 Composable, type-safe library to build HTTP API servers
nightly-2026-01-18 webgear-server-1.5.0 Composable, type-safe library to build HTTP API servers
lts-24.28 webgear-swagger-1.4.0 Composable, type-safe library to build HTTP API servers
nightly-2026-01-18 webgear-swagger-ui-1.5.0 Host swagger UI based on WebGear API specifications
lts-9.21 webkitgtk3-0.14.2.1 Binding to the Webkit library
lts-9.21 webkitgtk3-javascriptcore-0.14.2.1 JavaScriptCore FFI from webkitgtk
nightly-2026-01-18 webp-0.1.2.0 JuicyPixels support for WebP format
nightly-2026-01-18 webpage-0.0.5.1 Organized and simple web page scaffold for blaze and lucid
lts-20.26 web-plugins-0.4.1 dynamic plugin system for web applications
nightly-2026-01-18 web-rep-0.14.0.1 representations of a web page
nightly-2026-01-18 web-routes-0.27.16 portable, type-safe URL routing
lts-23.28 web-routes-boomerang-0.28.4.5 Use boomerang for type-safe URL parsers/printers
nightly-2026-01-18 web-routes-happstack-0.23.12.4 Adds support for using web-routes with Happstack
lts-21.25 web-routes-hsp-0.24.6.2 Adds XMLGenerator instance for RouteT monad
nightly-2026-01-18 web-routes-th-0.22.8.3 Support for deriving PathInfo using Template Haskell
lts-21.25 web-routes-wai-0.24.3.2 Library for maintaining correctness of URLs within an application
lts-6.35 web-routing-0.6.2 simple routing library
nightly-2026-01-18 webrtc-vad-0.1.0.3 Easy voice activity detection
nightly-2026-01-18 websockets-0.13.0.0 A sensible and clean way to write WebSocket-capable servers in Haskell
lts-11.22 websockets-rpc-0.6.0 Simple streaming RPC mechanism using WebSockets
nightly-2026-01-18 websockets-simple-0.2.0 Composable websockets clients
nightly-2026-01-18 websockets-snap-0.10.3.1 Snap integration for the websockets library
nightly-2026-01-18 web-view-0.7.0 Type-safe HTML and CSS
nightly-2020-05-12 weeder-2.0.1 Detect dead code
nightly-2026-01-18 weigh-0.0.18 Measure allocations of a Haskell functions/values
nightly-2026-01-18 welford-online-mean-variance-0.2.0.0 Online computation of mean and variance using the Welford algorithm
lts-7.24 werewolf-1.5.1.1 A game engine for playing werewolf within an arbitrary chat client
lts-6.35 werewolf-slack-1.0.2.0 A chat interface for playing werewolf in Slack
nightly-2026-01-18 what4-1.7.2 Solver-agnostic symbolic values support for issuing queries
nightly-2026-01-18 wherefrom-compat-0.2.0.0 A compatibility layer for GHC's 'wherefrom' function
nightly-2026-01-18 which-0.2.0.3 Determine the full path to an executable
nightly-2026-01-18 wide-word-0.1.8.1 Data types for large but fixed width signed and unsigned integers
lts-19.33 wikicfp-scraper-0.1.0.12 Scrape WikiCFP web site
nightly-2026-01-18 wild-bind-0.1.2.14 Dynamic key binding framework
lts-9.21 wild-bind-indicator-0.1.0.1 Graphical indicator for WildBind
lts-9.21 wild-bind-task-x11-0.1.0.1 Task to install and export everything you need to use WildBind in X11
nightly-2026-01-18 wild-bind-x11-0.2.0.18 X11-specific implementation for WildBind
nightly-2026-01-17 Win32-2.14.1.0 A binding to Windows Win32 API
lts-9.21 Win32-extras-0.2.0.1 Provides missing Win32 API
nightly-2026-01-18 Win32-notify-0.3.0.3 A binding to part of the Win32 library for file notification
nightly-2026-01-18 windns-0.1.0.1 Domain Name Service (DNS) lookup via the <windns.h>/dnsapi.dll standard library
lts-14.27 winery-1.1.3 A compact, well-typed seralisation format for Haskell values
lts-19.33 wire-streams-0.1.1.0 Fast binary io-streams adapter
nightly-2026-01-18 witch-1.3.0.9 Convert values from one type into another
nightly-2026-01-18 withdependencies-0.3.1 Run computations that depend on one or more elements in a stream
nightly-2026-01-18 witherable-0.5 filterable traversable
lts-17.15 witherable-class-0 Witherable = Traversable + Filterable
nightly-2026-01-18 within-0.2.0.1 A value within another path
lts-23.28 with-location-0.1.0 Use ImplicitParams-based source locations in a backward compatible way
nightly-2026-01-18 with-utf8-1.1.0.0 Get your IO right on the first try
nightly-2026-01-18 witness-0.7 values that witness types
nightly-2026-01-18 wizards-1.0.3 High level, generic library for interrogative user interfaces
nightly-2026-01-18 wkt-types-0.1.0.0 A library for working with .wkt files
nightly-2026-01-18 wled-json-0.1.0.2 Convenient interface for interacting with WLED devices
nightly-2026-01-18 wl-pprint-1.2.1 The Wadler/Leijen Pretty Printer
nightly-2026-01-18 wl-pprint-annotated-0.1.0.1 Pretty printer with annotation support
lts-19.33 wl-pprint-console-0.1.0.2 Wadler/Leijen pretty printer supporting colorful console output
lts-12.26 wl-pprint-extras-3.5.0.5 A free monad based on the Wadler/Leijen pretty printer
lts-12.26 wl-pprint-terminfo-3.7.1.4 A color pretty printer with terminfo support
nightly-2026-01-18 wl-pprint-text-1.2.0.2 A Wadler/Leijen Pretty Printer for Text values
lts-18.28 word24-2.0.1 24-bit word and int types for GHC
nightly-2026-01-18 word8-0.1.3 Word8 library
nightly-2026-01-18 word-compat-0.0.6 Compatibility shim for the Int/Word internal change in GHC 9.2
lts-8.24 wordpass-1.0.0.7 Dictionary-based password generator
lts-21.25 wordpress-auth-1.0.0.1 Validate Wordpress Cookies & Nonces; Build Wordpress Hashes & Salts
nightly-2026-01-18 word-trie-0.3.0 Implementation of a finite trie over words
nightly-2026-01-18 word-wrap-0.5 A library for word-wrapping
lts-11.22 Workflow-0.8.3 Workflow patterns over a monad for thread state logging & recovery
nightly-2026-01-18 world-peace-1.0.2.0 Open Union and Open Product Types
nightly-2026-01-18 wrap-0.0.0 Wrap a function's return value with another function
nightly-2026-01-18 wraxml-0.5 Lazy wrapper to HaXML, HXT, TagSoup via custom XML tree structure
lts-11.22 wrecker-1.3.1.0 An HTTP Performance Benchmarker
nightly-2026-01-18 wreq-0.5.4.3 An easy-to-use HTTP client library
nightly-2026-01-18 wreq-stringless-0.5.9.1 Simple wrapper to use wreq without Strings
lts-21.25 writer-cps-exceptions-0.1.0.1 Control.Monad.Catch instances for the stricter CPS WriterT and RWST
nightly-2019-03-06 writer-cps-full-0.1.0.0 WriteT and RWST monad transformers (Reexport with all dependencies)
nightly-2019-03-06 writer-cps-lens-0.1.0.1 Lens instances for the stricter CPS WriterT and RWST
nightly-2019-03-07 writer-cps-morph-0.1.0.2 MFunctor instance for CPS style WriterT and RWST
lts-21.25 writer-cps-mtl-0.1.1.6 MonadWriter orphan instances for writer-cps-transformers
nightly-2026-01-18 writer-cps-transformers-0.5.6.1 WriteT and RWST monad transformers
nightly-2017-06-30 wryte-0.2.0.0 Pretty output for source generators
nightly-2026-01-18 ws-0.0.6 A simple CLI utility for interacting with a websocket
lts-22.44 wss-client-0.3.0.0 A-little-higher-level WebSocket client
nightly-2026-01-18 wuss-2.0.2.7 Secure WebSocket (WSS) clients
nightly-2026-01-18 X11-1.10.3 A binding to the X11 graphics library
nightly-2026-01-18 X11-xft-0.3.4 Bindings to the Xft and some Xrender parts
nightly-2026-01-18 x11-xim-0.0.9.0 A binding to the xim of X11 graphics library
lts-22.44 x509-1.7.7 X509 reader and writer
lts-22.44 x509-store-1.6.9 X.509 collection accessing and storing methods
lts-22.44 x509-system-1.6.7 Handle per-operating-system X.509 accessors and storage
lts-22.44 x509-validation-1.6.12 X.509 Certificate and CRL validation
nightly-2026-01-18 Xauth-0.1 A binding to the X11 authentication library
lts-9.21 xdcc-1.1.4 A wget-like utility for retrieving files from XDCC bots on IRC
nightly-2026-01-18 xdg-basedir-0.2.2 A basic implementation of the XDG Base Directory specification
lts-24.28 xdg-desktop-entry-0.1.1.2 Parse files conforming to the xdg desktop entry spec
nightly-2026-01-18 xdg-userdirs-0.1.0.2 Basic implementation of XDG user directories specification
nightly-2026-01-18 xeno-0.6 A fast event-based XML parser in pure Haskell
lts-14.26 xenstore-0.1.1 Xenstore client access
lts-6.35 xformat-0.1.2.1 Extensible, type-safe formatting with scanf- and printf-like functions
nightly-2026-01-17 xhtml-3000.2.2.1 An XHTML combinator library
nightly-2026-01-18 xls-0.1.3 Parse Microsoft Excel xls files (BIFF/Excel 97-2004)
lts-8.24 xlsior-0.1.0.1 Streaming Excel file generation and parsing
nightly-2026-01-18 xlsx-1.2.0 Simple and incomplete Excel file parser/writer
lts-20.26 xlsx-tabular-0.2.2.1 Xlsx table cell value extraction utility
nightly-2026-01-18 xml-1.3.14 A simple XML library
nightly-2026-01-18 xml-basic-0.1.3.3 Basics for XML/HTML representation and processing
nightly-2026-01-18 xmlbf-0.7 XML back and forth! Parser, renderer, ToXml, FromXml, fixpoints
nightly-2026-01-18 xmlbf-xeno-0.2.2 xeno backend support for the xmlbf library
nightly-2026-01-18 xmlbf-xmlhtml-0.2.2 xmlhtml backend support for the xmlbf library
nightly-2026-01-18 xml-conduit-1.10.1.0 Pure-Haskell utilities for dealing with XML with the conduit package
lts-14.27 xml-conduit-parse-0.3.1.2 Streaming XML parser based on conduits
nightly-2026-01-18 xml-conduit-writer-0.1.1.6 Warm and fuzzy creation of XML documents
nightly-2026-01-18 xmlgen-0.6.2.2 Fast XML generation library
nightly-2026-01-18 xml-hamlet-0.5.0.3 Hamlet-style quasiquoter for XML content
nightly-2026-01-18 xml-helpers-1.0.0 Some useful helper functions for the xml library
nightly-2026-01-18 xmlhtml-0.2.5.4 XML parser and renderer with HTML 5 quirks mode
nightly-2026-01-18 xml-html-qq-0.1.0.1 Quasi-quoters for XML and HTML Documents
nightly-2026-01-18 xml-indexed-cursor-0.1.1.0 Indexed XML cursors similar to 'Text.XML.Cursor' from xml-conduit
lts-14.26 xml-isogen-0.3.0 Generate XML-isomorphic types
nightly-2026-01-18 xml-lens-0.3.1 Lenses, traversals, and prisms for xml-conduit
nightly-2026-01-18 xml-parser-0.1.1.2 XML parser with informative error-reporting and simple API
nightly-2026-01-18 xml-picklers-0.3.6 XML picklers based on xml-types, ported from hexpat-pickle
lts-18.28 xml-to-json-2.0.1 Library and command line tool for converting XML files to json
nightly-2026-01-18 xml-to-json-fast-2.0.0 Fast, light converter of xml to json capable of handling huge xml files
nightly-2026-01-18 xml-types-0.3.8 Basic types for representing XML
nightly-2026-01-18 xmonad-0.18.0 A tiling window manager
nightly-2026-01-18 xmonad-contrib-0.18.1 Community-maintained extensions for xmonad
lts-20.26 xmonad-extras-0.17.0 Third party extensions for xmonad with wacky dependencies
nightly-2026-01-18 xor-0.0.1.4 Efficient XOR masking
nightly-2026-01-18 xss-sanitize-0.3.7.2 sanitize untrusted HTML to prevent XSS attacks
lts-16.31 xturtle-0.2.0.0 turtle like LOGO
lts-11.22 xxhash-0.0.2 A Haskell implementation of the xxHash algorithm
nightly-2026-01-18 xxhash-ffi-0.3.1 Bindings and high-level helpers for xxHash
lts-9.21 yackage-0.8.1 Personal Hackage replacement for testing new packages
lts-9.21 yahoo-finance-api-0.2.0.3 Read quotes from Yahoo Finance API
nightly-2019-07-31 yam-0.7 A wrapper of servant
nightly-2019-07-31 yam-datasource-0.7 Yam DataSource Middleware
nightly-2026-01-18 yaml-0.11.11.2 Support for parsing and rendering YAML documents
lts-6.35 yaml-light-0.1.4 A light-weight wrapper with utility functions around HsSyck
lts-19.33 yamlparse-applicative-0.2.0.1 Declaritive configuration parsing with free docs
nightly-2026-01-18 yaml-unscrambler-0.1.0.21 Flexible declarative YAML parsing toolkit
lts-24.28 Yampa-0.15 Elegant Functional Reactive Programming Language for Hybrid Systems
lts-11.22 YampaSynth-0.2 Software synthesizer
nightly-2019-07-31 yam-redis-0.7 Yam Redis Middleware
nightly-2026-01-18 yarn-lock-0.6.5 Represent and parse yarn.lock files
lts-7.24 yarr-1.4.0.2 Yet another array library
lts-24.28 yaya-0.6.2.3 Total recursion schemes
lts-24.28 yaya-containers-0.1.2.2 Pattern functors and instances for types in the containers package
lts-24.28 yaya-hedgehog-0.3.0.5 Hedgehog testing support for the Yaya recursion scheme library
lts-24.28 yaya-quickcheck-0.2.0.3 QuickCheck testing support for the Yaya recursion scheme library
lts-24.28 yaya-unsafe-0.4.1.4 Non-total extensions to the Yaya recursion scheme library
lts-14.26 yeshql-4.1.0.1 YesQL-style SQL database abstraction (legacy compatibility wrapper)
nightly-2026-01-18 yeshql-core-4.2.0.0 YesQL-style SQL database abstraction (core)
lts-14.27 yeshql-hdbc-4.1.0.2 YesQL-style SQL database abstraction (HDBC backend)
nightly-2026-01-18 yesod-1.6.2.1 Creation of type-safe, RESTful web applications
lts-20.26 yesod-alerts-0.1.3.0 Alert messages for the Yesod framework
lts-24.28 yesod-auth-1.6.11.3 Authentication for Yesod
lts-9.21 yesod-auth-account-1.4.3 An account authentication plugin for Yesod
lts-6.35 yesod-auth-account-fork-2.0.3 An account authentication plugin for Yesod
nightly-2026-01-18 yesod-auth-basic-0.1.0.3 Yesod Middleware for HTTP Basic Authentication
nightly-2018-03-10 yesod-auth-bcryptdb-0.3.0.1 Authentication plugin for Yesod
lts-6.35 yesod-auth-deskcom-1.4.0 Desk.com remote authentication support for Yesod apps
nightly-2022-02-07 yesod-auth-fb-1.10.1 Authentication backend for Yesod using Facebook
lts-24.28 yesod-auth-hashdb-1.7.1.7 Authentication plugin for Yesod
lts-3.22 yesod-auth-oauth-1.4.0.2 OAuth Authentication for Yesod
lts-24.28 yesod-auth-oauth2-0.7.4.0 OAuth 2.0 authentication plugins
lts-21.25 yesod-auth-oidc-0.1.4 A yesod-auth plugin for multi-tenant SSO via OpenID Connect
lts-24.28 yesod-bin-1.6.2.3 The yesod helper executable
nightly-2026-01-18 yesod-core-1.6.28.1 Creation of type-safe, RESTful web applications
nightly-2026-01-18 yesod-csp-0.2.7.1 Add CSP headers to Yesod apps
lts-9.21 yesod-default-1.2.0 Default config and main functions for your yesod application (deprecated)
nightly-2026-01-18 yesod-eventsource-1.6.0.1 Server-sent events support for Yesod apps
lts-8.24 yesod-fay-0.8.0 Utilities for using the Fay Haskell-to-JS compiler with Yesod
lts-22.44 yesod-fb-0.6.1 Useful glue functions between the fb library and Yesod
nightly-2026-01-18 yesod-form-1.7.9 Form handling support for Yesod Web Framework
nightly-2026-01-18 yesod-form-bootstrap4-3.0.1.1 renderBootstrap4
lts-10.10 yesod-form-richtext-0.1.0.2 Various rich-text WYSIWYG editors for Yesod forms
nightly-2026-01-18 yesod-gitrepo-0.3.0 Host content provided by a Git repo
nightly-2026-01-18 yesod-gitrev-0.2.2 A subsite for displaying git information
lts-9.21 yesod-job-queue-0.3.0.4 Background jobs library for Yesod
lts-5.18 yesod-mangopay-1.12 Yesod library for MangoPay API access
nightly-2026-01-18 yesod-markdown-0.12.6.14 Tools for using markdown in a yesod application
lts-22.44 yesod-middleware-csp-1.2.0 A middleware for building CSP headers on the fly
nightly-2026-01-18 yesod-newsfeed-1.7.0.0 Helper functions and data types for producing News feeds
nightly-2026-01-18 yesod-page-cursor-2.0.1.0
nightly-2026-01-18 yesod-paginator-1.1.2.2 A pagination approach for yesod
nightly-2026-01-18 yesod-persistent-1.6.0.8 Some helpers for using Persistent from Yesod
nightly-2026-01-18 yesod-recaptcha2-1.0.2.1 yesod recaptcha2
nightly-2026-01-18 yesod-routes-flow-3.0.0.2 Generate Flow routes for Yesod
nightly-2026-01-18 yesod-sitemap-1.6.0 Generate XML sitemaps
lts-24.28 yesod-static-1.6.1.0 Static file serving subsite for Yesod Web Framework
lts-10.10 yesod-static-angular-0.1.8 Yesod generators for embedding AngularJs code into yesod-static at compile time
lts-11.22 yesod-table-2.0.3 HTML tables for Yesod
lts-24.28 yesod-test-1.6.19 integration testing for WAI/Yesod Applications
nightly-2022-02-07 yesod-text-markdown-0.1.10 Yesod support for Text.Markdown
nightly-2026-01-18 yesod-websockets-0.3.0.3 WebSockets support for Yesod
nightly-2026-01-18 yes-precure5-command-5.5.3 Extended yes command to reproduce phrases in Yes! Precure 5
nightly-2026-01-18 yggdrasil-schema-1.0.0.6
nightly-2026-01-18 yi-0.19.3 Yi editor
nightly-2026-01-18 yi-core-0.19.4 Yi editor core library
lts-24.28 yi-frontend-pango-0.19.2 Pango frontend for Yi editor
nightly-2026-01-18 yi-frontend-vty-0.19.1 Vty frontend for Yi editor
lts-11.22 yi-fuzzy-open-0.17.1 Fuzzy open plugin for yi
lts-11.22 yi-ireader-0.17.1 Yi editor incremental reader
nightly-2026-01-18 yi-keymap-cua-0.19.0 Cua keymap for Yi editor
nightly-2026-01-18 yi-keymap-emacs-0.19.0 Emacs keymap for Yi editor
nightly-2026-01-18 yi-keymap-vim-0.19.0 Vim keymap for Yi editor
nightly-2026-01-18 yi-language-0.19.2 Collection of language-related Yi libraries
nightly-2026-01-18 yi-misc-modes-0.19.1 Yi editor miscellaneous modes
nightly-2026-01-18 yi-mode-haskell-0.19.1 Yi editor haskell mode
nightly-2026-01-18 yi-mode-javascript-0.19.1 Yi editor javascript mode
nightly-2026-01-18 yi-rope-0.11 A rope data structure used by Yi
lts-11.22 yi-snippet-0.17.1 Snippet support for yi
nightly-2026-01-18 yjsvg-0.2.0.1 make SVG string from Haskell data
nightly-2026-01-18 yjtools-0.9.18 some tools for Monad, List, Tuple and so on
nightly-2026-01-18 yoga-0.0.0.8 Bindings to Facebook's Yoga layout library
nightly-2026-01-18 youtube-0.2.1.1 Upload video to YouTube via YouTube API
lts-16.31 zasni-gerna-0.0.7.1 lojban parser (zasni gerna)
nightly-2026-01-18 zenacy-html-2.1.2 A standard compliant HTML parsing library
nightly-2026-01-18 zenacy-unicode-1.0.3 Unicode utilities for Haskell
nightly-2026-01-18 zenc-0.1.2 GHC style name Z-encoding and Z-decoding
lts-19.33 zero-0.1.5 Semigroups with absorption
nightly-2026-01-18 zeromq4-haskell-0.8.0 Bindings to ZeroMQ 4.x
nightly-2026-01-18 zeromq4-patterns-0.3.1.0 Haskell implementation of several ZeroMQ patterns
nightly-2026-01-18 zigzag-0.1.0.0 Zigzag encoding of integers into unsigned integers
nightly-2026-01-18 zim-parser-0.2.1.0 Read and parse ZIM files
lts-21.25 zio-0.1.0.2 App-centric Monad-transformer based on Scala ZIO (UIO + ReaderT + ExceptT)
nightly-2026-01-18 zip-2.2.1 Operations on zip archives
nightly-2026-01-18 zip-archive-0.4.3.2 Library for creating and modifying zip archives
lts-21.25 zipper-extra-0.1.3.2 Zipper utils that weren't in Control.Comonad.Store.Zipper
nightly-2026-01-18 zippers-0.3.2 Traversal based zippers
nightly-2026-01-18 zip-stream-0.2.2.0 ZIP archive streaming using conduits
lts-10.10 ziptastic-client-0.3.0.3 A type-safe client for the Ziptastic API for doing forward and reverse geocoding
lts-10.10 ziptastic-core-0.2.0.3 Core Servant specification for the Ziptastic API for doing forward and reverse geocoding
nightly-2026-01-18 zlib-0.7.1.1 Compression and decompression in the gzip and zlib formats
nightly-2026-01-18 zlib-bindings-0.1.1.5 Low-level bindings to the zlib package
nightly-2026-01-18 zlib-clib-1.3.1 zlib C library bits
lts-6.35 zlib-enum-0.2.3.1 Enumerator interface for zlib compression
lts-19.33 zlib-lens-0.1.2.1 Lenses for zlib
lts-10.10 zm-0.3.2 Language independent, reproducible, absolute types
lts-7.24 zoom-refs-0.0.0.1 Zoom (~ Functor) and pairing (~ Applicative) for mutable references
nightly-2026-01-18 zot-0.0.3 Zot language
nightly-2026-01-18 zstd-0.1.3.0 Haskell bindings to the Zstandard compression algorithm
lts-20.26 ztail-1.2.0.3 Multi-file, colored, filtered log tailer
lts-22.44 zxcvbn-hs-0.3.6 Password strength estimation based on zxcvbn
lts-18.28 zydiskell-0.2.0.0 Haskell language binding for the Zydis library, a x86/x86-64 disassembler