JSON implementation for Ruby
Shale is a Ruby object mapper and serializer for JSON, YAML, TOML
Interact with REST services in an ActiveRecord-like manner
Heavy metal SOAP client
A Ruby/Rack web server built for concurrency
Pluggable Ruby translation framework
Fast, Nimble PDF Writer for Ruby
Music score editor
Oga is an XML/HTML parser written in Ruby
Generates pretty HTML, LaTeX, markdown, with biodata feeded as input
An ICAP Services Factory