A Haskell library that simplifies access to remote data, such as databases or web-based services.

Lenses, Folds, and Traversals - Join us on web.libera.chat #haskell-lens

A fast Haskell JSON library

Haskell code prettifier

A streaming data library

A Testing Framework for Haskell

Cloud Haskell core libraries

Persistence interface for Haskell allowing multiple storage methods.

Type safe interface for working in subcategories of Hask

Parser combinators with highlighting, slicing, layout, literate comments, Clang-style diagnostics and the kitchen sink

free monads

constructive abstract algebra

Kan extensions, Kan lifts, the Yoneda lemma, and (co)monads generated by a functor

Haskell combinators for executing IO actions in parallel on a thread pool

Simple Virtual Machine written in Haskell

Utility for creating .hsc files from C API header files

Folds and sequence algebras

yet-another Lisp Interpreter written in Haskell