A free C, C++ and Fortran IDE
A whole-program optimizing compiler for Standard ML
Graphical programming. Includes n-dimensional sorting.
Electronic design and programming tools suite like Eagle, MpLab
Deemon Scripting Language
A Compiler Development Toolkit
Go to github.com/vlm/asn1c for the latest version.
WIttgen is a two-instruction programming language modeled on the mind.