Google's Engineering Practices documentation
Cucumber for JavaScript
Create consistent Uml diagrams
transfer xml into specific text-formats (html, dot, source-code, ...)
Shell script to print the help message for the shell script.
NSD graphical editor, for Java development and rev-engineering
proof verifier for mathematical proofs and documentation generator
Writing use cases
Web-based editor for the Gateway Description Language (GDL).
Additional dictionary files for the NetBeans spellchecker.