Ruby: 2 CPUs = 2x Testing Speed for RSpec, Test::Unit and Cucumber

minitest provides a complete suite of testing facilities supporting TDD, BDD, mocking, and benchmarking.

Debugging in Ruby

OpenAI API + Ruby! 🤖❤️ GPT-5 & Realtime WebRTC compatible!

Elasticsearch integrations for ActiveModel/Record and Ruby on Rails

HTTP (The Gem! a.k.a. http.rb) - a fast Ruby HTTP client with a chainable API, streaming support, and timeouts

A high-performance web server for Ruby, supporting HTTP/1, HTTP/2 and TLS.

REST client for Google APIs

Ruby's bikeshed-proof linter and formatter 🚲

Roo provides an interface to spreadsheets of several sorts.

Rails application preloader

Sucker Punch is a Ruby asynchronous processing library using concurrent-ruby, heavily influenced by Sidekiq and girl_friday.

Examples from the book Design Patterns in Ruby by Russ Olsen. # ruby 2.2.0

Do some browser detection with Ruby. Includes ActionController integration.

SitemapGenerator is a framework-agnostic XML Sitemap generator written in Ruby with automatic Rails integration. It supports Video, News, Image, Mobile, PageMap and Alternate Links sitemap extensio…

A make-like build utility for Ruby.

An awesome asynchronous event-driven reactor for Ruby.

Build reactive applications with the Rails tooling you already know and love.

The push notification service for Ruby.

Routing Tree Web Toolkit

🔐 oauth2 - A Ruby wrapper for the OAuth 2.0, & 2.1 Authorization Frameworks, including OpenID Connect (OIDC)

Type Signature for Ruby

Step-by-step debugging and stack navigation in Pry

ReCaptcha helpers for ruby apps

A Ruby language server.

Ruby integrations for Elasticsearch

A Ruby library that encodes QR Codes

Headless Chrome Ruby API

The PDF::Reader library implements a PDF parser conforming as much as possible to the PDF specification from Adobe.

Ruby's Most Advanced Authentication Framework