Ruby

Do it like => validates :photos, attached: true, content_type: ['image/png', 'image/jpg', 'image/jpeg'], size: { less_than: 500.kilobytes }, limit: { min: 1, max: 3 }, aspect_ratio: :landscape, dimension: { width: { in: 800..1600 }

Collection of RSpec/MiniTest matchers and Cucumber steps for testing email in a ruby app using ActionMailer or Pony

A Ruby Implementation of the Model Context Protocol

Simple, efficient worker queue for Ruby & PostgreSQL.

The most Token-efficient open-source AI Agent

A tool for embedding XXE/XML exploits into different filetypes

An intelligent — pure Ruby — WHOIS client and parser.

RSpec tests for your AWS resources.

Usable, fast, simple HTTP 1.1 for Ruby

Oga is an XML/HTML parser written in Ruby.

Structured prompts, vault templates, and archive guides for AI-assisted genealogy research. Built for Claude Code.

Use ESM with importmap to manage modern JavaScript in Rails without transpiling or bundling.

An attempt to abstract this "init" script madness.

Ruby gem for phone validation and formatting using google libphonenumber library data

:books: The Open Source Discovery Service

The Ruby Spreadsheet by ywesee GmbH

RSpec driven API testing framework

Pluggable Ruby translation framework

Provide powerful tools for seccomp analysis

Save time and headaches, and create a more easily maintainable set of pages, with ActiveScaffold. ActiveScaffold handles all your CRUD (create, read, update, delete) user interface needs, leaving you more time to focus on more challenging (and interesting!) problems.

Configuration management tool inspired by Chef, but simpler and lightweight. Formerly known as Lightchef.

The Self-Coding System for Your App — Alan AI SDK for Cordova

`github` command line helper for simplifying your GitHub experience.

CLI tooling framework with simple interactive widgets

ORM agnostic truly Object-Oriented view helper for Rails 4, 5, 6, 7, and 8

Adds typed jsonb backed fields to your ActiveRecord models.

Simple Lightweight Option Parsing - ✨ new contributors welcome ✨

A lightweight Ruby client for the Docker Remote API

:zap: Powerful tool for avoiding N+1 DB or HTTP queries

Make any Ruby object quack like ActiveRecord