Tool support for the Z formal notation
Interpreter and compiler for the Seed7 programming language.
Advanced TECO dialect and interactive screen editor based on Scintilla
object orientated scripting language
DPDL (Dynamic Packet Definition Language) is a small framework library
eXist-db is a feature rich Open Source native XML database
A free, cross-platform emulator for GW-BASIC, PCjr & Tandy BASIC
A Java VM for ARDUINO and other micros using the leJOS runtime.
MIPS processor in Java
Template-based code generation language.
Scheme Interpreter implemented in Java
An object-oriented script language to embed in any application
Readable Lisp/S-expressions with infix, functions, and indentation
A Logo interpreter and programming environment specialized for schools
Java Internet Prolog (Moved to GitHub)
foundation of the General Intelligence Operating System
A piece of useless crap
C-like language parser, bytecode generator and a VM
Graph algorithms interpreter, IDE, debugger, 3D visualizations.