OnixOS Arch is a Linux-based and open source distribution.
Agena is an interpreted procedural programming language.
Binary Modular DataFlow Machine (BMDFM)
The open sourced NetRexx reference implementation
an object-oriented language with late binding
Expert System Tool
ALFOUR Programming language. Simple, safe, power, multi-platform.
AQ is an interpreted programming language. It is fast, small, simple a
Interpreter and compiler for the Seed7 programming language.
Hobby programming language for application development
The language used in the AP CSP Exam, now a programming language!
Basic programming language for Windows & Linux
a self-contained development environment for embedded systems.
An object-based programming language
A modern descendant of the Icon programming language.
Simple and flexible programming language for applications development
An hack of Jscheme with a lot of enhancements and additional features.
PEARL Compiler and Runtime System
EDITEL is a screen editor/code generator for GnuCOBOL programmers
PyConda is a simple, Python-based programming language.
KAGSA PROGRAMMING LANGUAGE
Dyalect is a programming language for .NET Core