Developed by devhub.io
REST API for any Postgres database
Universal markup converter
ShellCheck, a static analysis tool for shell scripts
Compiler for Elm, a functional language for reliable webapps.
A Haskell library that simplifies access to remote data, such as databases or web-based services.
The Haskell Tool Stack
Hybrid textual and visual functional programming.
Language, engine, and tooling for expressing, testing, and evaluating composable language rules on input strings.
A Dependently Typed Functional Programming Language
Building a modern functional compiler from first principles. (http://dev.stephendiehl.com/fun/)