Creation of type-safe, RESTful web applications.

Version on this page:1.4.2
LTS Haskell 22.26:
Stackage Nightly 2024-06-22:
Latest on Hackage:

See all snapshots yesod appears in

MIT licensed and maintained by Michael Snoyman
This version can be pinned in stack with:yesod-1.4.2@sha256:d72434f12fe3aa6992ed476c98cc2add94b6f94cfdbbea99307c0d463128b5f6,2265


The yesod package groups together the various Yesod related packages into one cohesive whole. This is the “battery loaded” version of Yesod, whereas most of the core code lives in yesod-core.

For the yesod executable, see yesod-bin.

Yesod is fully documented on its website.



  • Do not parse string environment variables into numbers/booleans #1061


Provide the Yesod.Default.Config2 module, for use by newer scaffoldings.