Barkeep – Barkeep is a fast, fun way to review code. Engineering organizations can use it to keep the bar high.
Brakeman – A static analysis security vulnerability scanner for Ruby on Rails applications.
Cane – Code quality threshold checking as part of your build.
Coverband – Rack middleware to help measure production code coverage.
Fasterer – Make your Rubies go faster with this command line tool highly inspired by fast-ruby and Sferik’s talk at Baruco Conf.
Flay – Flay analyzes code for structural similarities. Differences in literal values, variable, class, method names, whitespace, programming style, braces vs do/end, etc are all ignored. Making this totally rad.
Flog – Flog reports the most tortured code in an easy to read pain report. The higher the score, the more pain the code is in.
fukuzatsu – Complexity analysis tool with a rich web front-end.