Speeds up the Rails 3 asset pipeline by only recompiling changed assets

A wysiwyg text editor for Twitter Bootstrap

Chosen is a javascript library of select box enhancer for jQuery and Protoype. This gem integrates Chosen with Rails asset pipeline for easy of use.

3rd party dependency-free solution how to monitor performance of your Rails applications.

Rocket Pants adds JSON API love to Rails and ActionController, making it simpler to build API-oriented controllers.

Generate a slug – transliteration with a lot of options

Provides a Jasmine Spec Runner that plays nicely with Rails 3.2 assets and sets up jasmine-headless-webkit

Operational controls for Active Job

Process your Paperclip attachments in the background with ActiveJob

Easily switch current user to speed up development

No longer maintained - use webpacker instead.

A simple gem for using Backbone with Rails (>= 3.1), based on thoughtbot's 'Backbone.js on Rails'

Translations for the devise gem

Compile Haml CoffeeScript templates in the Rails asset pipeline.

Captcha Gem for Rails, which generates captcha image by Rust.

Browserify + Rails = CommonJS Heaven

Quickly build modern single-page React, Vue and Svelte apps using classic server-side routing and controllers.

Out-of-Band Server Triggered DOM Operations

Test your Rails Engines without needing a full Rails app

Foundation on Sass/Compass