A mountable Rails engine that provides a full-featured web interface for documenting database schemas — tables, columns, relationships, constraints, change tracking, ER diagrams, Excel export, and i18n support (EN/JA).

DBViewer is a mountable Rails engine that provides a simple interface to view database tables and their records.

Deadfire - lightweight css preprocessor

Provides components and controllers for building real-time video chat features in Rails applications using WebRTC, Action Cable, Turbo Streams, and Stimulus.

font-awesome-propshaft provides the Font-Awesome web fonts and stylesheets as a Rails engine for use with the asset pipeline.

Goodmin is an admin framework for Rails 8+. Use it to build dedicated admin sections for your apps, or stand alone admin apps such as internal tools.

Hephaestus is a Rails generator to create plugs for Yetto.

Jigsaw Engine

An open source Rails 8+ engine built on `layered-ui-rails` that provides a multi-provider AI assistant with streaming responses and a full conversation UI.

An open source Rails 8+ engine built on Tailwind CSS, providing customisable WCAG 2.2 AA compliant design tokens, utility classes, and Stimulus controllers for theme switching, mobile navigation, slide-out panels, modals, and tabs. Integrates with the gems you already use (Devise, Pagy, Ransack).

Mission Control dashboard for monitoring and managing SolidCache

A gem that extracts the styling and theming components from my Rails applications for reuse across multiple projects

Better websites on Rails.

Shared development tools, configurations, and utilities for Panda CMS and its related projects

A lightweight Rails engine for managing entity-based feature flags with built-in caching support. Pin features to any ActiveRecord model with polymorphic associations, providing a flexible alternative to traditional feature flags. Includes a configurable cache expiry, and isolated namespace to avoid conflicts.

Adds asset compression to Propshaft. Compresses with gzip, brotli, and/or zstandard.

Adds a propshaft compiler to add coverage to your JavaScript files

Receive normalized Apple and Google in-app purchase webhooks in your Rails app. Optionally integrates with the Pay gem automatically.

Quick way to inspect your Rails database, see content of tables, filter, export them to CSV, Excel, EXPLAIN SQL and run SQL queries.

Realtime debug dashboard for Rails applications