A ruby code beautifier/prettifier cleans ruby code for you [and give it the right indentation, etc.] What it does: you run rbeautify on poorly-aligned code, like def go if 3 stuff end end and it automatically converts said code to def go if 3 stuff end end Quite convenient for those of us who edit using editors without auto format. It also helps find indentation mismatches [i.e. missing end's and }'s ] by cleaning up the code so you can see scopes, and warning you where it sees mismatches [similar to ruby19 -w but better]. Many thanks to the original author [I just gemif-ied his existing script]. http://www.arachnoid.com/ruby/rubyBeautifier.html Installation: gem sources -a http://gems.github.com sudo gem install rogerdpack-rbeautify Usage: rbeautify