FastPage applies the MySQL "deferred join" optimization to your ActiveRecord offset/limit queries.

Ruby client for The Google Distance Matrix API

Govkit lets you quickly get encapsulated Ruby objects for common open government APIs. We're starting with Sunlight's Open States API and the Project Vote Smart API.

hamlit-rails provides generators for Rails 4.

Access controls for project hydra

I18n date/number parsing/localization

An instagram bot works without instagram api, only needs your username and password

Handle iTunes In App Purchase Receipt Verification

The JitPreloader has the ability to send notifications when N+1 queries occur to help guage how problematic they are for your code base and a way to remove all of the commons explicitly or automatically

Rails drop in for Varnish support.

HBase Ruby client API

Common code, such as validators and mixins, that are shared between ActiveModels in metasploit-framework and ActiveRecords in metasploit_data_models.

brings some functional goodness to ruby by giving you some monads

Create and modify your notifications through a simple API.

Deliver your notifications to various services.

Render your notifications in various contexts.

Integrates with your authentication solution to craft a personalized user notification platform.

The substitution can be formatted using a syntax that looks like method calls

The official Ruby wrapper for the Podio API used and maintained by the Podio team

Simple gem to translate routes in Rails 3.x based on translate_routes