A complete web framework for Ruby
     Lotus - A complete web framework for Ruby lotus, a complete web framework for ruby
                 
            
                
                
                Logic-less Ruby templates.
     {{ mustache }}
                 
            
                
                
                A Ruby gem to transform HTML + CSS into PDFs using the command-line utility wkhtmltopdf
                 
            
                
                
                AASM - State machines for Ruby classes (plain Ruby, ActiveRecord, Mongoid, MongoMapper)
                 
            
                
                
                Library for stubbing and setting expectations on HTTP requests in Ruby.
                 
            
                
                
                MacRuby is an implementation of Ruby 1.9 directly on top of Mac OS X core technologies such as the Objective-C runtime and garbage collector, the LLVM compiler infrastructure and the Foundation and ICU frameworks.
                 
            
                
                
                **Grit is no longer maintained. Check out libgit2/rugged.** Grit gives you object oriented read/write access to Git repositories via Ruby.
     grit
                 
            
                
                
                A rich Ruby API and DSL for the Elasticsearch search engine
     tire.rb
                 
            
                
                
                Ruby process monitor
     God - A Process Monitoring Framework in Ruby
                 
            
                
                
                A Ruby gem for on-the-fly processing - suitable for image uploading in Rails, Sinatra and much more!
     Dragonfly