Minitest
TestingFast and simple testing suite
Products using Minitest
Devise
GemFlexible authentication solution for Rails. The standard for user auth in Rails apps.
Conductor
GemA control plane for self-hosted Rails operations. One place to run, monitor, and maintain apps across mixed infrastructure - Kamal and Docker or native Caddy and Puma. Fleet dashboard, SSH execution, deploys, backups, alerts, and recurring jobs over servers you already own.
InventList is the public home for indie builders. Log every ship (releases, features, bug fixes), build Series with live embeds of your actual work, keep a journey dashboard, and share your story in one permanent place. Includes a CLI for shipping from the terminal, roadmaps, collections, and a weekly "What Shipped This Week" digest. Free forever, built for operators-of-one who ship in public.
InkPen
GemA modern, TipTap-based rich text editor for Ruby on Rails applications
Rails Expert
SaaSWhere Rails experts meet businesses A curated marketplace for Rails expertise. No bidding wars. Just experts who ship.
Set a deadline you can't change. Build in public. Miss it and your project goes to the graveyard.
Pagy
SaaSFast, lightweight pagination gem for Ruby apps, designed to be simpler and more performant than older pagination libraries.
Flipper
GemFeature flag library for Ruby that lets you roll out features gradually, run A/B tests, and toggle functionality without deploying.
Rails
GemThe web application framework that powers this entire directory - convention over configuration, batteries included.
Monitor performance of you Rails applications (self-hosted and free)
Predicate
GemA lightweight, high-performance predicate evaluation library for Ruby/Rails applications with automatic caching, TTL support
Jazari
GemOperating procedures you can call, instead of documents you hope someone reads. Recipes as data, per-subject runbooks, stable names for rituals, and per-run evidence — so did-last-nights-run-complete is a query, not a guess. Ruby 3.2+, Rails 7.1+, PostgreSQL.
Rails Markup
GemPoint-and-click annotation tool for Rails apps. Click any element, describe what needs to change, and your AI agent reads and acts on your feedback via MCP. Screenshots with drawing tools, kanban board, author attribution, and notification hooks.
Gitlabhq
SaaSGitLab CE Mirror | Please open new issues in our issue tracker on GitLab.com
Rails Erd
GemGenerate Entity-Relationship Diagrams for Rails applications
Webpacker
GemUse Webpack to manage app-like JavaScript modules in Rails
Draper
GemDecorator/view-model library for Rails that keeps presentation logic out of models and views, in dedicated decorator classes.
Ahoy
GemSimple, first-party analytics library for Rails that tracks visits and events directly in your own database, no third party required.
Rails gem that integrates Bootstrap's CSS framework into a Rails app's asset pipeline for quick, responsive styling.