Kile is a feature-rich LaTeX editor
Source code to formatted text converter
A wiki using HAppS, pandoc, and git
Another drawing editor for LaTeX with PSTricks & TikZ
Book of elementary algorithms and data structures
wxMEdit, Cross-platform Text/Hex Editor, Improved Version of MadEdit
A framework for implementing a presentation layer.
Vector drawing program for LaTeX using PSTricks
A fast DVI to SVG converter
proof verifier for mathematical proofs and documentation generator