Git a wiki with it is a plugin for rails that add simple wikis implimented in git

Washington, DC Metro Rails information, including lines, stations and arrival/departure predictions.

RailRoad is a class diagrams generator for Ruby on Rails applications.

Rake tasks to check your Rails models for missing indexes

API Client for Deckchair.com. Includes view helpers for Rails

A Rack application for debugging in API server on Rails. Debug exception with json.

Find records for Rails controller actions declaratively.

ArrayAttributes - Rails Concern to encapsulate common array attributes methods

Deebee is a convenient and fast web interface for your DB. As a Sinatra app, it can be used standalone or mounted within your Rails app.

Favors speed over size of minified JS, works on any ruby platform, works well with the Rails asset pipeline and Sprockets

declarative_authorization is a Rails plugin for authorization based on readable authorization rules.

Decent Ham generates rails crud using decent_exposure and haml.

A gem to automate using gl-matrix with Rails 3

Automatically detect mobile requests from mobile devices in your Rails application.

Provides generated html data for Rails applications

Rails and Mongoid simplest helpers possible to directly upload file to S3 without hitting the server. Support concurrent uploads, progress bars, and more.

Replacement of Rails `link_to` method with static HTML

depwhack is a tool for comparing local and remote gem dependencies for a Rails project.

Change the behavior of ActionMailer::Base in Rails to allways use delayed_job's send_later method.

Rails plugin for saving additional data for model.