Symja - Java computer algebra language & symbolic math library
A hex editor Eclipse plugin and multi-platform desktop application
CAM XML Editor for XML+JSON+Hibernate+SQL Open-XDX sponsored by Oracle
EditBox is the Eclipse plugin for source code background highlighting.
Encrypt and manage secret text data
a DSL for type systems, reduction rules, interpreters for Xtext langs
Extractor Files is an index
Product Backlog Eclipse connector for Mylyn
Simply text editor for php, jsp, html, etc...
Pascal and Java Scintilla wrappers
Octave Eclipse GUI
Facebook & Google Chat for eclipse in perfect camouflage. Enjoy
Lua Editor