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

Rails Admin plugin to manage Globalize translations

master-slave replication helper for ActiveRecord

Enables direct file uploads to Amazon S3 and provides a flexible pattern for your Rails app to asynchronously ingest the files.

Add social network capabilities to your projects.

Allow prices to be configured in quantity ranges for each variant

BitPay connector for the Spree shopping cart

Simple contact form manager for Spree

Integrates Mercado Pago with Spree

Calculate weight based charges for a Spree order

Javascript timezone detection that also sets Time.zone for Rails to use

Management panel for TheRole on Bootstrap3

Simple and real-life tested Rails::Engine admin interface

Allows to define special attributes for ActiveAdmin panel to make it AJAX loadable and auto-updatable

APIc is a bolt on API console for Rails 3+ applications. It rounds up your endpoints and makes it dead easy to configure, send, review and replay any request.

Gem provide scripts and helpers for initialize different select2 elements: static, ajax and multi-ajax. Moreover this gem is foundation for other gems. For example for AutoSelect2Tab.

Separate pages resource for brightcontent

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

Canvas LTI and OAUTH2 mountable engine

Allows you to create .js.coffee views