Offsite Payments is a simple abstraction library used in and sponsored by Shopify. It is written by Tobias Luetke, Cody Fauser, and contributors. The aim of the project is to put as simple an abstraction as possible on top of offsite (often called hosted) payment pages, and allow contributors to easily help services such as Shopify extend the number of offsite payment services they support.

PJAX integration for Rails

Bootstrap CSS (with Sass flavour) and JS toolkits for Rails 3 projects

This gem can be useful, if you need to upload files to your API from mobile devises.

Adds Dropzone, a great JS File upload by Matias Meno, to the Rails Asset pipeline.

Inky is an HTML-based templating language that converts simple HTML into complex, responsive email-ready HTML. Designed for Foundation for Emails

Easy model creation and reference in your cucumber features

A quick and easy way to visually test out your application's API.

Routing filters wraps around the complex beast that the Rails routing system is, allowing for unseen flexibility and power in Rails URL recognition and generation.

Drag&Drop GUI for awesom_nested_set. Render Tree Helper. Very fast! Ready for Rails 4

Drag&Drop GUI helper for awesome_nested_set gem. Sortable tree view helper

Spec::Rails (a.k.a. RSpec on Rails) is a Ruby on Rails plugin that allows you to drive the development of your RoR application using RSpec, a framework that aims to enable Example Driven Development in Ruby.

It's an admin, obviously.

Integrates ServiceWorker into the Rails asset pipeline.

Ruby on Rails data listing gem with built-in sorting, filtering and in-place editing.

A simple cms and blogging engine for rails apps.

Wiselinks makes following links and submitting some forms in your web application smarter and faster

lazy_preload implementation for ActiveRecord models

ActiveRecord Connections Magic (slaves, multiple connections, etc)

ActiveRecord Connections Magic (slaves, multiple connections, etc)