Mail provides a nice Ruby DSL for making, sending and reading emails
Retrieve the source code for a method
Manipulate images with minimal use of memory via ImageMagick
Your personal string matching expert
Fast mime detection by extension or content
A Ruby library for accessing memcached
Maruku is a Markdown-superset interpreter written in Ruby
Simple mime type detection using magic numbers file names and extensions
Manipulate and transform HTML/XML documents and fragments
Use to match path patterns such as gitignore
Ruby Modelling and Generator Framework
An optimized implementation of the JPEG-LS standard