Out of band authentication via Authentify
A simple collection of geographic names and abbreviations for Rails apps (includes replacements for country_select and state_select)
Platform aware .profile generator
The missing package manager for OS X.
rails engine to manage polymorphic-uploads with optional importing
Automagically store attributes ending with _ip as an integer in the DB
Track changes to your models' data. Good for auditing or versioning.
validate model attributes follow specific guidelines e.g. only printable characters, no whitespace, etc
expose precense-validation in a more controller-friendly manner
Ruby Object Oriented Design Inferometer
use paper_trail within rspec, conveniently
Helping Rspec and Rspec-rails play nicely with RR the test double framework
Infrastructure automation and management system
machina to automatically parse (with the chronic gem) date/datetime attributes upon assignment
machina to automatically generate UUIDs upon object instantiation.
Rails app that runs my intranet
A streaming JSON parsing and encoding library for Ruby (C bindings to yajl)