asdf : Extendable version manager with support for Ruby, Node.js, Elixir, Erlang & more
rsizr : rsizr is a Flash application that lets you resize JPG, PNG, and GIF images on your computer. With rsizr, in addition to normal image rescaling and cro...
RoundPic : Online tool for making anti-aliased rounded corners (very Web 2.0!) for avatars and images
Check easily whether a gem is ready for Rails 4 or not.
