Project converting the TeX source code from Web to C. Download of code and information on the conversion.

Omega is an extension of TeX developed by John Plaice (Universite Laval, Canada) and Yannis Haralambous (Atelier Fluxus Virus, France) aimed primarily at improving TeX's multilingual abilities.

A standard of \specials for turning (La)TeX documents in hyperdocuments supported by previewers for DVI and Postscript files.

An extended version of TeX that can create PDF directly from TeX source files and enhance the result of TeX typesetting with the help of PDF. When PDF output is not selected, pdfTeX produces normal DVI output.

Python programming plus TeX typesetting. Information about the concept, documents and links to the SourceForge page with download and mailing list. Also home of Active TeX, a forerunner of PyTeX, and the TeX daemon.

An extended version of pdfTeX using Lua as an embedded scripting language. Roadmap, FAQs, source code and documentation.

Program licensed under the GNU GPL which parses LaTeX math expressions emitting images which can be used directly in HTML documents. Introduction, manual and download.

New TeX engine in development, written in Java and based on NTS, -TeX, pdfTeX, and (Omega). Development information, documentation, mailing lists and download.

A modern and free C++ implementation of TeX based on CommonTeX.

Allows to manipulate TeX internals using the Scheme programming language. Sourceforge project page and guides.