The best Rails 6.0+ forums engine ever. Its goal is to be as simple and feature rich as possible. Thredded works with SQLite, MySQL (v5.6.4+), and PostgreSQL. See the demo at https://thredded.org/.

Offload CarrierWave's image processing and storage to a background process using Delayed Job, Resque, Sidekiq, Qu, Queue Classic or Girl Friday

Brings before_commit, after_commit, and after_rollback transactional callbacks outside of your ActiveRecord models.

JWT authentication for devise with configurable token revocation strategies

Manage badges, points and rankings (reputation) in your Rails app.

Integrates the AWS Ruby SDK with Ruby on Rails

The dynamic stylesheet language for the Rails asset pipeline. Allows other gems to extend Less load path.

BrowserCMS is a general purpose, open source Web Content Management System (CMS) that supports Ruby on Rails v3.2. It can be used as a standalone CMS, added to existing Rails projects or extended using Rails Engines.

Adds simple rake commands for seeding your database. Simple dependencies let you organise your seeds. If you are using Rails, Seedbank extends Rails seeds and lets you add seeds for each environment.

Devise extension to allow authentication via LDAP

Automatically eager loads Rails associations as associations are traversed

Every Rails page has footnotes that gives information about your application and links back to your editor.

Direct Upload to Amazon S3 With CORS and jquery-file-upload

Adds footnotes to each page in your Rails app, containing useful development information as well as links to edit the controllers and views in your editor.

Stripe webhook integration for Rails applications.

The exceptionally handsome dashboard framework for Rails.

Mailgun's Official Ruby SDK for interacting with the Mailgun API.

Semantic UI, converted to Sass and ready to drop into Rails, Compass, or Sprockets.

Helper for add social share feature in your Rails app. Twitter, Facebook, Weibo, Douban, QQ, Tumblr ...

declarative_authorization is a Rails plugin for authorization based on readable authorization rules.