ERB, TailwindCSS, and StimulusJS UI components based on Shadcn/UI.

Monitoring engine for RubyLLM

FindBug is a Sentry-like error tracking and performance monitoring gem that stores data locally using Redis and your database. Features include exception capture, performance instrumentation, alerting, and a built-in dashboard.

Glancer is a Ruby on Rails engine that enables natural language queries over your database using RAG and LLMs.

Koi CMS admin framework

Dashboard for managing servers.

NoPassword is a Ruby on Rails gem that allows session authentication with a token or a magic link via an email sent to the user; there is no need for a password.

Rails admin engine

Experimental replacement for the promotion system in Solidus

Modern fully featured storefront and checkout for Spree Commerce

SuperAdmin is a mountable Rails engine that provides a full-featured administration interface inspired by Administrate and ActiveAdmin, built for modern Rails 7+ applications.

Validate your Rails forms remotely in real time using ActionCable. Also validate client side using native HTML validations and present them in a much 'prettier' format.

AdvancedSelect provides helper-rendered Rails partials, Stimulus dropdown behavior, Turbo Stream-compatible option updates, plain CSS, and i18n defaults while leaving data loading, authorization, and endpoints to the host app.

Functional JavaScript for Rails.

Collection of ViewComponents objects for backoffice

An enhanced file upload field for Rails forms, powered by web components. Provides drag-and-drop uploads, image/video previews, and seamless ActiveStorage integration.

A Rails engine that provides a beautiful dashboard to monitor and debug HTTP requests, similar to Laravel Telescope. Includes a terminal UI with vim keybindings.

With this gem, you can efficiently create beautiful index and form pages, and form fields with labels using the Bulma CSS library. You can also create embedded, editable multi-object subforms.

Cardinal AI is a local, per-repo AI Kanban tool: columns are policies, cards become Claude-powered worker agents, and work ships as pull requests. Run `cardinal` inside any git repository to get a board for it at http://localhost:4000.

Include the engine in your Rails app and you can view CSV files in your browser.