Deploy web apps anywhere
Acceptance test framework for web applications
Advisory locking for ActiveRecord
A Ruby/Rack web server built for concurrency
Build Ruby on Rails apps 10x faster
Pagination library for Rails, Sinatra, Merb, DataMapper, and more
A Rails engine that helps you put together an admin dashboard
Classy web-development dressed in a DSL
Stylish Graph APIs
Simple, powerful, first-party analytics for Rails
A flexible framework for maintainable Ruby apps
Complete Ruby geocoding solution
RailsAdmin is a Rails engine that provides an easy-to-use interface
Rack middleware for blocking & throttling
Better error page for Rack apps
The Ruby 2D gem
Textacular exposes full text search capabilities from PostgreSQL
A Ruby gem and unofficial documentation of Tesla's JSON API
Two-factor authentication system
Authorization Gem for Ruby on Rails