A high-performance web server for Ruby, supporting HTTP/1, HTTP/2 and TLS.

Validate and Run GitHub Actions locally.

GitHub Action to build and push Docker images with Buildx

Generate Mermaid ERD from your Ruby on Rails application.

Website for Ruby no Kai

Alba is a JSON serializer for Ruby, JRuby and TruffleRuby.

deck is a tool for creating deck using Markdown and Google Slides.

Allows Sequel to reuse Active Record's database connection

Thor is a toolkit for building powerful command-line interfaces.

Good things come in small packages.

技術同人誌「AWSとRubyではじめるサーバーレス入門」のサポートページ

Pure Ruby LALR parser generator

Ruby gem for calling observability APIs

✨ Innovative and open-source visualization application that transforms various data formats, such as JSON, YAML, XML, CSV and more, into interactive graphs.

minica is a small, simple CA intended for use in situations where the CA operator also operates each host where a certificate will be used.

SAML SSO for Ruby

Ruby's Most Advanced Authentication Framework

World's most advanced database DevSecOps solution for Developer, Security, DBA and Platform Engineering teams. The GitHub/GitLab for database DevSecOps.

Sequel: The Database Toolkit for Ruby

TiDB - the open-source, cloud-native, distributed SQL database designed for modern applications.

Print go mod dependency tree

Automatically generates beautiful and easy-to-read ER diagrams from your database.

Splits the testing in Go into a subset and run it. It is useful for the CI environment.

GitHub's Online Schema-migration Tool for MySQL

Ruby's bikeshed-proof linter and formatter 🚲

testing a github action

A GitHub Action to ensure all Rails application foreign key columns are indexed

memory_profiler for ruby