Setler is a Gem that lets one easily implement the "Feature Flags" pattern, or add settings to individual models. This is a cleanroom implementation of what the 'rails-settings' gem does. It's been forked all over the place, and my favorite version of it doesn't have any tests and doesn't work with settings associated with models.

Shopify's modern front-end tooling, nicely packaged for Rails

Integrate modern JavaScript build system with Rails.

Simple datatables to rails mapping using meta_search, will_paginage and jsonify

Parse, store retreive and format hashtags in your text.

A Rails engine that adds a piece of middleware to the top of your middleware stack that looks for redirect rules stored in your database and redirects you accordingly.

A simple ruby on rails sitemap generator

Shared mustache templates for rails 3

Rails plugin to automatically minify JS and CSS when their bundles get cached. Send in those patches!

Description of SpectatorSport.

An animated CSS3 loading spinner with VML fallback for IE.

Rack middleware which will look up your assets manifest file and redirect a request with no digest in the file name to the version with digest in the file name.

Adds info about number of sql queries done during request to your rails logs.

Health monitoring Rails plug-in, which checks various services (db, cache, sidekiq, redis, etc.).

A Rails gem to supply a front-end and reporting capability to the Surveyor gem.

Replace the Rails system confirm box with SweetAlert2

A tight DSL to build tables of ActiveRecord or Mongoid models with sorting, pagination, finding/filtering, selecting and batch actions. Tries to do for tables what formtastic and simple_form did for forms.

ActiveStorage integration plugin for the Trestle admin framework.

A rich text editor for everyday writing

TrustyCms is a simple and powerful publishing system designed for small teams. It is built with Rails and is similar to Textpattern or MovableType, but is a general purpose content management system--not merely a blogging engine.