Top RUBY GitHub Repositories & Tools (2026)

Collection of RSpec/MiniTest matchers and Cucumber steps for testing email in a ruby app using ActionMailer or Pony

Build and distribute Linux packages from sources in an automatic, consistent and reproducible way #obs

Stylish Graph APIs, built on JSON:API

Internationalization (i18n) library for Ruby

Sentry SDK for Ruby

SQL Server Adapter For Rails

Rack::Test is a small, simple testing API for Rack apps.

Warbler chirpily constructs .war files of your Ruby applications.

File Based CMS and Static Site Generator

A ruby gem for creating navigations (with multiple levels) for your Rails, Sinatra or Padrino applications. Render your navigation as html list, link list or breadcrumbs.

The swiss army knife of RBI generation

An embeddable fulltext search engine. Groonga is the successor project to Senna.

Code style checking for RSpec files.

Ruby bindings for the SQLite3 embedded database

undercover warns about methods, classes and blocks that were changed without tests, to help you easily find untested code and reduce the number of bugs. It does so by analysing data from git diffs, code structure and SimpleCov coverage reports

Ruby gem for colorizing printed text on ANSI terminals

DSL Framework consisting of a DSL Engine and a Data-Binding Library used in Glimmer DSL for SWT (JRuby Desktop Development GUI Framework), Glimmer DSL for Opal (Pure Ruby Web GUI), Glimmer DSL for LibUI (Prerequisite-Free Ruby Desktop Development GUI Library), Glimmer DSL for Tk (Ruby Tk Desktop Development GUI Library), Glimmer DSL for GTK (Ruby-GNOME Desktop Development GUI Library), Glimmer DSL for XML (& HTML), and Glimmer DSL for CSS

A versatile Ruby web spidering library that can spider a site, multiple domains, certain links or infinitely. Spidr is designed to be fast and easy to use.

A helper for launching cross-platform applications in a fire and forget manner.

MSYS2 based RubyInstaller for Windows