The Hecl Programming Language is a high-level scripting language implemented in Java. Hecl Programming Language is intended to be small, extensible, extremely flexible, and easy to learn and use.

PATH is a very different programming language than what you are probably used to if youre an average programmer. If youve programmed in the language Brainf*ck, youll recognize the memory cell architecture.

Transmuter Programming Language is an extremely dynamic, biologically-inspired prototyping language providing a framework for experimenting with naturally evolving systems of objects over the net, and for exploring new ideas about recombinant softwar

Qu is a powerful full-featured object oriented programming language. It is an Open Source software. The Qu Programming Language is absolutely free (as in free lunch) and distributed under the GNU General Public License (GPL).

Io is small prototype-based programming language.

The Complex Language project is an object oriented programming language intended for scripting or rapid prototyping of applications. The design goals were to have very few simple but powerful concepts and to be easy to use and easy to learn.

brainwash project is an open source interpreter for the Brainfuck programming language, written in ANSI C.

mod_perl project brings together the full power of the Perl programming language and the Apache HTTP server. You can use Perl to manage Apache, respond to requests for web pages and much more.

Inline-API is a Perl module that teach you how to bind a programming language to Perl using Inline.pm. SYNOPSIS #!

OSSP js is a stand-alone distribution of the JavaScript (JS) programming language reference implementation from Mozilla -- aka "JSRef" or "SpiderMonkey".

MIT/GNU Scheme is an implementation of the Scheme programming language, providing an interpreter, compiler, source-code debugger, integrated Emacs-like editor, and a large runtime library.

X10 project is a new object-oriented, type-safe programming language for programming the next generation of high performance systems. X10 is designed and developed by IBM.

GvTags is a lightweight yet powerful tag library and template engine for the dynamic programming language Groovy. The tag library can be used to generate Web pages with powerful tag support.

ChucK is a new audio programming language for real-time synthesis, composition, and performance - fully supported on MacOS X, Windows, and Linux.

Nemerle is a high-level statically-typed programming language for the .NET platform. It offers functional, object-oriented and imperative features. Nemerle project has a simple C#-like syntax and a powerful meta-programming system.

Bake is a small domain specific programming language for describing how to transform one file into another. Bake uses the typical topological sort, but has features that make describing this relatively easy.

eGTK is a binding between the Eiffel programming language and the GTK+ widget toolkit. eGTK works with two compilers: the GNU SmallEiffel compiler and ISE Eiffel (commercial compiler). Gtk+ is a widget toolkit for X-window systems.

Grail is an extensible Internet browser written entirely in the interpreted object-oriented programming language Python. It runs on Unix, Windows and Macintosh. Grail is easily extended to support new protocols or file formats.

Polymorphic XML Parser is a validating XML parser for the programming language Objective Caml.

Alice is a functional programming language based on Standard ML, extended with rich support for concurrent, distributed, and constraint programming..