Rails internals: application bootup, plugins, generators, and rake tasks.

Protocol Buffers are Google's data interchange format.

A flexible two-column Jekyll theme.

A simple Jekyll theme for words and pictures.

Send RPCs from Ruby using GRPC

Selenium implements the W3C WebDriver protocol to automate popular browsers. It aims to mimic the behaviour of a real user as it interacts with the application's HTML. It's primarily intended for web application testing, but any web-based task can automated.

Rack provides a minimal, modular and adaptable interface for developing web applications in Ruby. By wrapping HTTP requests and responses in the simplest way possible, it unifies and distills the API for web servers, web frameworks, and software in between (the so-called middleware) into a single...

rspec-expectations provides a simple, readable API to express expected outcomes of a code example.

RSpec's 'test double' framework, with support for stubbing and mocking

Diff::LCS computes the difference between two Enumerable sequences using the McIlroy-Hunt longest common subsequence (LCS) algorithm. It includes utilities to create a simple HTML diff output format and a standard diff-like tool. This is release 1.4.3, providing a simple extension that allows fo...

Support utilities for RSpec gems

A common interface to multiple JSON libraries, including Oj, Yajl, the JSON gem (with C-extensions), the pure-Ruby JSON gem, NSJSONSerialization, gson.rb, JrJackson, and OkJson.

Ruby FFI library

Helpers for making new Huginn Agents

The mime-types library provides a library and registry for information about MIME content type definitions. It can be used to determine defined filename extensions for MIME types, or to use filename extensions to look up the likely MIME type definitions. Version 3.0 is a major release that requi...

ZURB Foundation on Sass/Compass

A really Ruby Mail handler.

A pure ruby implementation of the RFC 7519 OAuth JSON Web Token (JWT) standard.

Vagrant is a tool for building and distributing development environments.

Rack::Test is a small, simple testing API for Rack apps. It can be used on its own or as a reusable starting point for Web frameworks and testing libraries to build on.