Client Side Validations made easy for Ruby on Rails

Sucker Punch is a Ruby asynchronous processing library using concurrent-ruby, heavily influenced by Sidekiq and girl_friday.

Notifications for Ruby on Rails applications

Ruby on Jets

Ruby on Rails API documentation tool

Do some browser detection with Ruby. Includes ActionController integration.

SitemapGenerator is a framework-agnostic XML Sitemap generator written in Ruby with automatic Rails integration. It supports Video, News, Image, Mobile, PageMap and Alternate Links sitemap extensio…

An awesome replacement for acts_as_nested_set and better_nested_set.

The Ruby community's gem hosting service.

An awesome asynchronous event-driven reactor for Ruby.

A platform to create, publish and edit sites

All sorts of useful information about every country packaged as convenient little country objects. It includes data from ISO 3166 (countries and states/subdivisions ), ISO 4217 (currency), and E.16…

Magical authentication for Rails 3 & 4

A fast background processing framework for Ruby and RabbitMQ

Create reports based on your log files. Supports Rails, Apache, MySQL, Delayed::Job, and other formats.

Ckeditor 4.x integration gem for rails

Routing Tree Web Toolkit

Exception Notifier Plugin for Rails

Payments for Ruby on Rails apps

Easiest way to add multi-environment yaml settings to Rails, Sinatra, Padrino and other Ruby projects.

A Ruby gem for on-the-fly processing - suitable for image uploading in Rails, Sinatra and much more!

**Grit is no longer maintained. Check out libgit2/rugged.** Grit gives you object oriented read/write access to Git repositories via Ruby.

YARD is a Ruby Documentation tool. The Y stands for "Yay!"

Ruby Tests Profiling Toolbox

Ruby integrations for Elasticsearch

IdentityCache is a blob level caching solution to plug into Active Record. Don't #find, #fetch!

Headless Chrome Ruby API

Easily and efficiently make your ActiveRecord models support hierarchies

Identify database issues before they hit production.