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