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 modular CMS for Ruby on Rails 5 with an intuitive out-of-the-box interface to manage and customize components. Use Binda if you want to speed up your setup process and concentrate directly on what your application is about. Please read the documentation for more information and a quick start guide.

Use Bootflat (a flat adaptation of Bootstrap on Rails)

This gem provides views to add users (probably front-end or mobile developers) to your Rails 5 so they can create clients and manage tokens. With this, you can authenticate all requests and eventually track usage by each client.

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

Flexslider 2 Rails Gem

formtastic-plus-bootstrap makes a formtastic form to look like a bootstrap form.

Large collection of useful Rails 3.1 helpers for SEO, Metatags, Facebook OG tags, integration for analytics services like google, woopra, olark, mixpanel and much much more...

This is the basic module of Golden Cobra. It offers Devise, ActiveAdmin, an article module, a menu module and global settings for an CMS

Mission Control for your projects and teams

Convenient use of inline_styles gem with Rails 3.1+ and Rails 4

Lalala: Probably the best CMS in the world

Bootstrap tools - UI Kit, Devise Views, and Component Partials

Bootstrap tools - UI Kit, Devise Views, and Component Partials

Web UI for MailyHerald - Email processing solution for Ruby on Rails applications

mapbox-gl-rails provides Mapbox GL JS sources and stylesheets as a Rails engine for use with the asset pipeline.

The peoplefinder provides searchable staff profiles for your organisation. Since it's a rails engine, you can re-skin it for your organisation.

Rails gem for easy prettyPhoto (v3.1.5) integration. See http://www.no-margin-for-errors.com/projects/prettyphoto-jquery-lightbox-clone/ for more information on how to use prettyPhoto.

Direct upload to a Qiniu storage bucket.

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