Universal markup converter

ShellCheck, a static analysis tool for shell scripts

Parsing, analyzing, and comparing source code across many languages

A strongly-typed language that compiles to JavaScript

Compiler for Elm, a functional language for reliable webapps.

The core of xmonad, a small but functional ICCCM-compliant tiling window manager

Building a modern functional compiler from first principles. (http://dev.stephendiehl.com/fun/)

A RESTful Haskell web framework built on WAI.

The Eta Programming Language, a dialect of Haskell on the JVM

Bundle of all core development tools for Elm

Command line tool to share Elm libraries