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validates_timeliness

Date and time validation plugin for ActiveModel and Rails. Supports multiple ORMs and allows custom date/time formats.

timeliness

Fast date/time parsing for the control freak.

active_enum

Define enum classes in Rails and use them to enumerate ActiveRecord attributes, with I18n support

grouped_validations

Validation groups for ActiveRecord

capybara-screenshot

Automatically save screen shots when a Cucumber Capybara scenario fails

forgery

Easy and customizable generation of forged data.

xid

ActiveRecord extension to retrieve current transaction ID

audited

Audited (formerly acts_as_audited) is an ORM extension that logs all changes to your Rails models.

grpc

The C based gRPC (C++, Python, Ruby, Objective-C, PHP, C#)

machinist

Fixtures aren't fun. Machinist is.

rails

Ruby on Rails

rspec-expectations

Rspec-2 expectations (should and matchers)

abacus_count

`ActiveRecord::Base#count` and other calculations as subqueries.

builder

capistrano-slack

Capistrano slack integration.

clockwork

A scheduler process to replace cron.

compendium

Ruby on Rails reporting framework

counter_culture

Turbo-charged counter caches for your Rails app.

devise_invitable

An invitation strategy for devise

dossier

Ruby-based report generation/presentation Rails engine.

ember-rails

Ember for Rails 3.1+

graphiti-api.github.io

Github Pages Project

herokuish

Utility for emulating Heroku build and runtime tasks in containers

homebrew-versioned

Version locked formula no longer available

mustache

Logic-less Ruby templates.

mustache-rails

Mustache Rails adapter

puma

A Ruby/Rack web server built for parallelism

scenic

Versioned database views for Rails

two_factor_authentication

Two factor authentication extension for Devise

wicked_pdf

PDF generator (from HTML) plugin for Ruby on Rails