rspec-rails integrates the Rails testing helpers into RSpec.

Kaminari is a Scope & Engine based, clean, powerful, agnostic, customizable and sophisticated paginator for Rails 4+

factory_girl provides a framework and DSL for defining and using factories - less error-prone, more explicit, and all-around easier to work with than fixtures.

Easy upload management for ActiveRecord

Upload files in your Ruby applications, map them to a range of ORMs, store them on different backends.

This gem is used by GitHub to render any fancy markup such as Markdown, Textile, Org-Mode, etc. Fork it and add your own!

Create JSON structures via a Builder-style DSL

Shoulda Matchers provides RSpec- and Minitest-compatible one-liners to test common Rails functionality that, if written by hand, would be much longer, more complex, and error-prone.

A Ruby framework for rapid API development with great conventions.

help to kill N+1 queries and unused eager loading.

Use webpack to manage app-like JavaScript modules in Rails

Ruby API for Elasticsearch. See the `elasticsearch` gem for full integration.

Active Merchant is a simple payment 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 feel natural to Ruby users and to abstract as many parts as possible away from the user to offer a consistent inter...

Object oriented authorization for Rails applications

Automatic Rails code style checking tool. A RuboCop extension focused on enforcing Rails best practices and coding conventions.

Ransack is the successor to the MetaSearch gem. It improves and expands upon MetaSearch's functionality, but does not have a 100%-compatible API.

Ransack is the successor to the MetaSearch gem. It improves and expands upon MetaSearch's functionality, but does not have a 100%-compatible API.

[Backported security patched version] A Ruby framework for rapid API development with great conventions.

Tame Rails' multi-line logging into a single line per request

The git gem provides an API that can be used to create, read, and manipulate Git repositories by wrapping system calls to the git command line. The API can be used for working with Git in complex interactions including branching and merging, object inspection and manipulation, history, patch gene...