ReDNS is a pure Ruby DNS library with drivers for reactor-model engines such as EventMachine

Redo implements the `Command` pattern, also known as `Action` or `Transaction` pattern, with undo and redo support in ruby

Wrapping redoc.min.js library with ruby gem for easy use in Rails projects

[OpenCV][opencv] is a computer vision library.

Red Optuna is a hyperparameter optimization framework. You can optimize hyperparameter automatically.

Ruby library for consuming Redox JSON APIs

Ruby wrapper for the RedoxEngine Engine API

Red Palette provides features for dealing with palette.

Simple, elegant & efficient ORM for Redis

A Ruby wrapper for RedPen

RedPenRuby is a Ruby wrapper for redpen: a text inspection tool.

Plasma is an in-memory object store and cache for big data. red-plasma is deprecated since 10.0.0. red-plasma will not be released from Apache Arrow 12.0.0 or so.

A nice little gem that integrates Redmine, Todo.txt and Pomodoro.app

RedPotion - The best combination of RubyMotion tools and libraries

Additional command line generators for RedPotion. Adds scaffolding, form, and model generators.

Rails wrapper for Redis

Provides DOM, Ajax, JSON functionality for Red. Heavy usage of jQuery.

Build maintainable Ruby apps

Use WebMock to test applications that aren't running in the same process as the tests

Simple web scraper gem that returns the next show at Red Rocks.