CommunityEngine is a free, open-source social network platform for Ruby on Rails applications. Drop it into your new or existing application, and you’ll instantly have all the features of a basic community site.

jQuery plugin for drop-in fix binded events problem caused by Turbolinks

A Rails Engine to preview plain text and html email in your browser

Enhanced AJAX handling for Rails apps.

Use render in your Rails controllers and handle the response with Turbolinks.

AJAX/Rails engine file browser for cloud storage services

A series of helpers for consistency among HashiCorp's middleman sites

Page-specific javascript for Rails done right

Faalis is a ruby on rails engine which provides a platform to easily build a web application. Features like Dashboard, complex code generation and other awesome features. For more information checkout the docs.

A simple to use Rails-Engine-Gem that offers an admin interface for trusted user. Easy integratable and highly configurable and agnostic. Works with ActiveRecord and Mongoid.

A tool for automated testing and debugging of automation scripts (e.g., Chef).

Initjs helps you organize your javascript to play nice with Rails' asset pipeline. Providing a simple and automatic way to execute your javascript into a specific page.

Page-specific javascript for Rails applications with the ability of passing data.

Best rails admin panel. Great mechanism for customization and rapid development

Ruby on Rails lacks a recommended way to structure your frontend code for many years. Tao on Rails is the framework to fill the gap which will modularize your page with the new Custom Elements v1 API.

Gem that focus on making a public site's resources very quickly while being very configurable!, supports facebook sharing, instagram and google analytics integration

Blogelator is an easy way to add a blog to your Rails app.

A simple rails chat gem that leverages ActionCable

Turbolinks Plugin for ClientSideValidaitons

Provide backend functions for Comable.