Live Mermaid ERD viewer for any Rails app, mounted as a real-time route, powered by Hotwire
Developer experience
Component previews, API docs and coverage — the tooling around the code.
The tooling around the code is quietly expensive: a component workshop, an API documentation portal, a coverage service, a mail sandbox. Each is modest on its own and each is a separate account, a separate bill and a separate thing to keep in sync with the repository.
Mounted, they read the real code. API docs generated from specs that must pass cannot drift; a component preview that renders the actual partial cannot lie about it.
Developer experience engines
Tramway
29Start your Rails project with Tramway
Demo Mode
28A configurable demo mode for your Rails app. Specify your desired "personas" and Demo Mode will handle the rest
Allows for easy design version previews in Ruby on Rails. 0 database, 0 config, 0 admin
Collect gems used by applications
Lesli
28Ruby on Rails SaaS Development Framework
Turbo Live
27Async, progressively enhanced, live components for Ruby applications that work over Websockets and HTTP
Add persisted fields to active record models without migrations
Ruby Native
24Turn your existing Rails app into a native iOS and Android app with Ruby Native
Seamless real-time updates for Inertia.js Rails apps using ActionCable
Railsified Shoelace style
ERD Map
22Visualize, explore, and interact with your Rails application's models and associations with ease
Extend any ActiveRecord object to have one or more named addresses. Includes a geographic region aware custom form input backed by Carmen
The next_rails_scaffold gem is a powerful extension to the standard Ruby on Rails scaffold generator
LLM evaluation engine for Rails
Vitals Image
21Image tags that conform with web vitals
Command Deck
21Command Deck is a tiny, dev-only Rails engine that gives you a floating panel to run custom actions and quick admin tasks without opening Rails console
:earth_africa: A Rails plugin to populate a state/province select box from country_select
A collection of active storage analyzers
Dbwatcher
20Track and visualize database changes in Rails applications
Pi SDK Rails
19A Rails engine from pi-apps
Rails Age
18Rails ApacheAge Plugin
Mechanical
17All models in a single table, new attributes without migrations. Works like regular AR model
Simple style guide for Rails 7.2+