Symja - Java computer algebra language & symbolic math library
Launch an external diff tool like WinMerge in Eclipse
EditBox is the Eclipse plugin for source code background highlighting.
Performance and Productivity at Scale
Vim-like editing in Eclipse
Literate programming for eclipse
Paste from your Copy history!
Pure Trait-based Programming on the Java Platform
a DSL for type systems, reduction rules, interpreters for Xtext langs
Small plug-ins for fixing Eclipse bugs or adding some basic features.
Product Backlog Eclipse connector for Mylyn