Top Haskell GitHub Repositories & Open Source Projects (2026)

An automatic prover of termination of logic programs and narrowing

A type-checker for the λΠ-modulo calculus.

A compiler for C-Minus written in Haskell that targets an architecture called TM. I wrote this for a Compilers course. It could stand to be refactored in a few places, but overall I'm pretty proud of it.

Simple thread management

Haskell bindings for TagLib (so you can read and write id3 tags)

Experimental Haskell blog publishing.

A Haskell library for generating new names without threading state.

Barak's Forward Automatic Differentiation

A pure Haskell interface to the Tokyo Tyrant database server via its binary protocol

Fancier network library for Haskell

Modular haskell hirc bot

husky is a command line shell for UNIX-like OS written in haskell.

Haskell leap second table with leap seconds announced at library release time.

UNIX deamon writing utilities for Haskell

A link between Happstack and FastCGI

Haskell bindings to the ALSA libray

Simple Haskell model of context semantics

bindings to libattr for haskell

Command-line Facebook

Extensible, typed, scanf- and printf-like functions for formatted reading and showing in Haskell