Resque is a Redis-backed Ruby library for creating background jobs, placing them on multiple queues, and processing them later.
Simple, but flexible HTTP client library, with support for multiple backends.
The participatory democracy framework. A generator and multiple gems made with Ruby on Rails
Date and time validation plugin for ActiveModel and Rails. Supports multiple ORMs and allows custom date/time formats.
Optimize images using multiple utilities
:twisted_rightwards_arrows: Seamlessly specify multiple redirections URLs for your pages and posts.