Learn it. Build it. Ship it for others.

🚀 CKEditor 5 Ruby Gem – a powerful WYSIWYG editor for Rails! Smooth integration with web components and helper methods. 💎 Supports GPL & commercial licenses, flexible CDN options, and translations.…

Xournal++ is a handwriting notetaking software with PDF annotation support. Written in C++ with GTK3, supporting Linux (e.g. Ubuntu, Debian, Arch, SUSE), macOS and Windows 10. Supports pen input fr…

A terminal-based Rails log viewer with real-time monitoring and filtering capabilities

See what sticks

Practical algorithms for modern Ruby and Rails developers.

Free universal database tool and SQL client

Turbo-charged counter caches for your Rails app.

Preline UI is an open-source set of prebuilt UI components based on the utility-first Tailwind CSS framework.

Ruby on Rails website builder

Solr-powered search for Ruby objects

An opinionated language server for Ruby

Real World Rails applications and their open source codebases for developers to learn from

🍯 Unobtrusive and flexible spam protection for Rails apps

memcached development tree

Generate Automatic Interactive Documentation for Your Rails API

Camaleon CMS is a dynamic and advanced content management system based on Ruby on Rails

🃏🗑 Soft deletes for ActiveRecord done right

Build LLM-powered applications in Ruby

Simple Turn-based Game

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

🍺 The Package Manager for Everywhere

Live reload gem for Hotwire Rails apps.

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Monitor performance of you Rails applications (self-hosted and free)

Empowering everyone to build reliable and efficient software.

Learn Go with test-driven development

Open-source UI component library and front-end development framework based on Tailwind CSS

🌼 🌼 🌼 🌼 🌼  The most popular, free and open-source Tailwind CSS component library

Learn how to design large-scale systems. Prep for the system design interview. Includes Anki flashcards.