Static page caching for Action Pack (removed from core in Rails 4.0)

Parameter Validation and Type Coercion for Rails

Full HMAC auth implementation for use in your gems and Rails apps.

A drop-in replacement for e.g. MemCacheStore to store Rails sessions (and Rails sessions only) in Redis. For great glory!

Client library for the Central Authentication Service (CAS) protocol.

Easily switch current user to speed up development

APN on Rails is a Ruby on Rails gem that allows you to easily add Apple Push Notification (iPhone) support to your Rails application.

Formtastic form builder to generate Twitter Bootstrap-friendly markup.

APN on Rails is a Ruby on Rails gem that allows you to easily add Apple Push Notification (iPhone) support to your Rails application.

APN on Rails is a Ruby on Rails gem that allows you to easily add Apple Push Notification (iPhone) support to your Rails application.

Don’t fool around with adding tracking partials to your app and concentrate on the things that matter.

Bh - Bootstrap Helpers

Out-of-Band Server Triggered DOM Operations

Offsite Payments is a simple abstraction library used in and sponsored by Shopify. It is written by Tobias Luetke, Cody Fauser, and contributors. The aim of the project is to put as simple an abstraction as possible on top of offsite (often called hosted) payment pages, and allow contributors to ...

Interact with REST services in an ActiveRecord-like manner

Library for building Telegram Bots with Rails integration

A library to make creating negative captchas less painful

Rails performance tests (removed from core in Rails 4.0)

Configurable, but assumes a conservative strategy by default with a goal to solve many search engine index problems: multiple hostnames, inbound links with arbitrary parameters, trailing slashes.

DbCharmer is a Rails plugin (and gem) that could be used to manage AR model connections, implement master/slave query schemes, sharding and other magic features many high-scale applications need.