The PHP Interpreter
Tools for BPF-based Linux IO analysis, networking, monitoring, etc.
A command line tool for URL parsing and manipulation
Export disassemblies into Protocol Buffers
Windows installer development tool
WYSIWIG conditional compilation preprocessor for Java etc.
On GitHub now!
Text scraping and data munging language.
Automated software application for constructing and building projects.
Open Source Penetration Testing / Ethical Hacking Framework
Script language for processing binary data