An uroboros program with 100+ programming languages

A flexible framework for maintainable Ruby apps

💨 Writing Fast Ruby 😍 -- Collect Common Ruby idioms.

Rails authentication with email & password.

Efficient and thread-safe code loader for Ruby

Automated code reviews via mutation testing - semantic code coverage.

Ruby Tests Profiling Toolbox

A Ruby library for testing your library against different versions of dependencies.

Convert markdown to keynote

High-level image processing wrapper for libvips and ImageMagick/GraphicsMagick

A NES emulator written in Ruby

Track the load progress of your Bundler-based projects

A collection of emoji aliases for core Ruby methods

Query Method Calls from Ruby Programs

Mry Migrates .Rubocop.Yml

Dump compiled iseq by binary (kakidasu) and load binary (yomidasu)

_ allows you to write Ruby script by using only _.

ActiveRecord sanitization using Loofah and Nokogiri

A fast TOML parser gem fully compliant with TOML v1.0.0

RuboCop configuration which has the same code style checking as official Ruby on Rails

Rack middleware to capture incoming HTTP requests/responses with VCR

Ruby client for Hugging Face API

Async I/O using Ruby Fiber

Overload for Ruby

Launch [debugger](https://github.com/ruby/debug) if spec is failed.

Change a non-default gem to a default gem in your local environment

A prism backend for the whitequark/parser gem

Ruby implementation of the programming language ModanShogi (LLVM support thanks by ujihisa and nanki)