- laser 395 Static analysis and style linter for Ruby code.
- ruby-patches 117 A collection of patches for Ruby - any implementation. Install with RVM!
- hash_syntax 84 Converts Ruby files to and from Ruby 1.9's Hash syntax
- amp 83 Version Control in Ruby. Mercurial Compatible. Big ideas.
- harsh 81 Harsh: Another Rails Syntax Highlighter. Ultraviolet-based syntax highlighting for rails, for ERb or Haml. Better than the rest.