websockets

A sensible and clean way to write WebSocket-capable servers in Haskell.

Version on this page:	0.12.7.3
LTS Haskell 24.24:	0.13.0.0@rev:5
Stackage Nightly 2025-12-20:	0.13.0.0@rev:5
Latest on Hackage:	0.13.0.0@rev:5

See all snapshots websockets appears in

BSD-3-Clause licensed by Siniša Biđin <[email protected]> Jasper Van der Jeugt <[email protected]> Steffen Schuldenzucker <[email protected]> Alex Lang

Maintained by Jasper Van der Jeugt

This version can be pinned in stack with:websockets-0.12.7.3@sha256:c4133af18fb420527b30507a69ff20d6819b79f02643051f1ed97aba0468846c,7976

Module documentation for 0.12.7.3

Network
- Network.WebSockets

Depends on 17 packages(full list with versions):

async, attoparsec, base, base64-bytestring, binary, bytestring, bytestring-builder, case-insensitive, clock, containers, entropy, network, random, SHA, streaming-commons, text, websockets

Used by 15 packages in lts-18.28(full list with versions):

buttplug-hs-core, greskell-websocket, morpheus-graphql-subscriptions, net-mqtt, network-messagepack-rpc-websocket, reanimate, skews, slack-api, threepenny-gui, wai-websockets, websockets, websockets-snap, wss-client, wuss, yesod-websockets

This library allows you to write WebSocket-capable servers.

An example server: https://github.com/jaspervdj/websockets/blob/master/example/server.lhs

An example client: https://github.com/jaspervdj/websockets/blob/master/example/client.hs