Ruby

Octiconsprimer/octicons

A scalable set of SVG icons handcrafted by GitHub for GitHub and other applications.

kaminarikaminari/kaminari

A scope-based, customizable paginator for Ruby web apps supporting multiple ORMs and template engines.

Punditelabs/pundit

A minimal authorization library for Ruby on Rails using plain Ruby classes and object-oriented design.

Simple Formplataformatec/simple_form

A Rails form builder with a simple DSL that generates forms without imposing markup opinions.

simple_formheartcombo/simple_form

A Rails form builder with a simple DSL that generates forms without imposing markup opinions.

chefchef/chef

A powerful automation platform that transforms infrastructure into code for configuration management at any scale.

factory_botthoughtbot/factory_bot

A fixtures replacement library for Ruby that provides a straightforward syntax for setting up test data objects.

Gitlabsameersbn/docker-gitlab

A Dockerized GitLab CE image for self-hosted source code management and DevOps lifecycle.

OmniAuthomniauth/omniauth

A Rack-based Ruby library that standardizes multi-provider authentication for web applications.

Pumapuma/puma

A simple, fast, multi-threaded, and highly parallel HTTP 1.1 server for Ruby/Rack applications.

Puppetpuppetlabs/puppet

An automated administrative engine for Linux, Unix, and Windows systems that performs tasks based on centralized specifications.

Surewe-promise/sure

A community-maintained, self-hostable personal finance and wealth management app for tracking and managing your finances.

Foundation for Emailszurb/foundation-emails

A framework for creating responsive HTML emails that work across all email clients, including Outlook.

Scientistgithub/scientist

A Ruby library for carefully refactoring critical paths by comparing old and new code behavior in production.

github-changelog-generatorgithub-changelog-generator/github-changelog-generator

Automatically generates a changelog file from GitHub tags, issues, labels, and pull requests.

github-changelog-generatorgithub-changelog-generator/github-changelog-generator

Automatically generates a changelog from GitHub tags, issues, labels, and pull requests.

Jazzyrealm/jazzy

A command-line tool that generates Apple-style API documentation for Swift and Objective-C projects.

jazzyrealm/jazzy

A command-line tool that generates Apple-style API documentation for Swift and Objective-C projects.

Bulletflyerhzm/bullet

A Ruby gem that detects N+1 queries, unused eager loading, and missing counter caches to improve application performance.

brakemanpresidentbeef/brakeman

A static analysis security vulnerability scanner for Ruby on Rails applications.

PaperTrailairblade/paper_trail

Track changes to your Rails models for auditing, versioning, and reverting to previous states.

Better Errorscharliesome/better_errors

A Rack middleware that replaces standard Rails/Rack error pages with an interactive, feature-rich debugging interface.

better_errorsBetterErrors/better_errors

A Rack middleware that replaces standard Rails/Rack error pages with a more informative and interactive debugging interface.

Prypry/pry

A runtime developer console and IRB alternative for Ruby with powerful introspection and debugging capabilities.

MailCatchersj26/mailcatcher

A development SMTP server that catches and displays emails in a web interface for testing.

react-railsreactjs/react-rails

Integrate React.js with Rails views, controllers, and asset pipelines for server-side and client-side rendering.

dotenvbkeepers/dotenv

A Ruby gem that loads environment variables from .env files into ENV, primarily for development.

searchkickankane/searchkick

An intelligent search library for Ruby on Rails that learns from user behavior and provides advanced features like stemming, misspellings, and synonyms.

lolcatbusyloop/lolcat

A command-line tool that adds rainbow colorization to text output, making terminal output more visually appealing.

Chartkickankane/chartkick

Create beautiful JavaScript charts with one line of Ruby, eliminating the complexity of charting libraries.

WhatWeburbanadventurer/WhatWeb

A next-generation web scanner that identifies websites and their technologies using over 1800 plugins with configurable aggression levels.

guardguard/guard

A command-line tool that automates tasks by running custom rules when files or directories are modified.

Geocoderalexreisner/geocoder

A complete Ruby geocoding solution with forward/reverse geocoding, IP address lookup, and ActiveRecord/Mongoid integration.

Hanamihanami/hanami

A full-stack Ruby web framework built from smaller, single-purpose libraries for maintainable applications.

FriendlyIdnorman/friendly_id

A comprehensive slugging and permalink plugin for ActiveRecord that creates human-friendly URLs and works with strings as numeric IDs.

Foremanddollar/foreman

A process manager for Procfile-based applications that runs multiple processes from a single command.