The GNU Prolog native compiler
Interpreter and compiler for the Seed7 programming language.
Simple ⇒ Object-Oriented ⇒ Functional
Tool support for the Z formal notation
Delphi : VRCalc++ OOSL & + (Paged List, TextEditor, VRAstroVision ...)
Scripting engine for Pascal compilers.
Delphi Java - VRCalc++ OOSL (Script) and + (Binary Exec Distro)
Emulator of the ancient 8 bit microprocessor SC/MP 2
A minimalistic but complete standard Forth compiler in C
CSS validation and advanced preprocessor with nesting and variables
A Java VM for ARDUINO and other micros using the leJOS runtime.
Learning programming language for kids
MIPS processor in Java
BCPL was designed by Martin Richards at Cambridge University (1966)
An object-oriented script language to embed in any application
A stack-oriented programming language suitable for code golfing
Java-based Dialect of the Unicon Programming Language
An object oriented language for concurrent software development
Java Internet Prolog (Moved to GitHub)
Graph algorithms interpreter, IDE, debugger, 3D visualizations.
miniasm is a short bytecode based assebler, interpreter and compiler