The cross-platform toolkit
The open sourced NetRexx reference implementation
An hack of Jscheme with a lot of enhancements and additional features.
Interpreter and compiler for the Seed7 programming language.
PEARL Compiler and Runtime System
ALFOUR Programming language. Simple, safe, power, multi-platform.
Learning programming language for kids
An experimental programming language
foundation of the General Intelligence Operating System
Dataflow parallel programming language for clusters