Simulate multi-table inheritance for activerecord models using a polymorphic association

MySQL index hint support for ActiveRecord

Rails ActiveRecord connector for Google Spanner Database

Fast Rails serializer with built-in caching

When ShamRack doesn't quite cut it; when your JavaScript and non-Ruby code needs to hit an external API for your tests; when you're excited about spinning up a full server instead of faking out Net::HTTP: we present the Discoball.

Easy Parallel Executing using Celluloid

Patches Date, Time, and DateTime ruby classes to keep track of precision

Faster implementation of Haml template language.

Fluentd plugin to rewrite tags/values along with pattern matching and re-emit them.

https://github.com/tsukasaoishi/fresh_connection

Shared code for Pact gems

lazy_migrate lets you easily see which migrations have and have not been run, and makes it easy to up/down/migrate/rollback your migrations through a terminal UI. You can even bump migration versions in the event that you've just pulled master and somebody else merged their migration before yours.

Automatic detecting missing I18n translations tool.

A basic Mandrill delivery method for Rails.

Provides fields and methods for the rating manipulation on Mongoid documents.

Improve perceived performance of your rails application with minimum effort

Browse, subscribe, view and revert changes to records when using Rails and the `paper_trail` gem.

Browse, subscribe, view and revert changes to records when using Rails and the `paper_trail` gem.

Debugging toolbar for Rack applications implemented as middleware. Based on logical-insight and rack-bug.

Run your data migration tasks in a db:migrate-like manner