Hotwire Astra UI provides production-ready, accessible modal dialogs for Rails apps using Turbo Frames and Stimulus. Importmap-friendly, server-rendered, and framework-free, with stacked modals, CSS-driven animations, and full customization via CSS variables.

HotwireBits provides 240+ beautifully designed, accessible UI components for Ruby on Rails. Each component ships in ERB partial and ViewComponent formats with Tailwind CSS v4 styling, Stimulus interactivity, and Turbo compatibility including Turbo Native.

A datecpicker exclusively for Rails apps with Hotwire and Stimulus.

Infold provides Scaffolding functionality specifically for Internal tools. Enables fast build, elegant UI/UX, flexible customization.

IronAdmin is a convention-over-configuration admin panel engine for Ruby on Rails that automatically generates CRUD interfaces from your models with built-in support for search, filters, scopes, custom actions, theming, and policy-based authorization.

A Rails engine for managing and publishing content with a flexible schema.

Jigsaw Engine

JSAdmin exposes Active Record models through a generic CRUD UI built with Tailwind CSS and Hotwire.

Kozenet UI is a modern, production-ready component library for Ruby on Rails. Built with ViewComponent and Tailwind CSS, it provides beautiful, accessible, and customizable UI components with dynamic theming support. Features CSP-compliant styling, dark mode, and smooth animations.

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).

Low-code platform for building information systems: write the metadata (models, UI presenters, permissions, and more) in YAML or DSL, and the Rails mountable engine builds the app for you.

Lookout is a fork of Ahoy Captain with SQLite support, continued maintenance, and modern Rails 8 compatibility. Full-featured analytics dashboard with conversion funnels, goals tracking, and beautiful visualizations.

masks is a ruby library and rails engine that adds simple, extensible auth to most applications. DO NOT USE

Material is Google’s open-source design system. Design and build beautiful, usable products with Material.

Material Design with ViewComponent

Fast and awesome tables, with pagination, sorting, filtering and custom views.

MetaWorkflows provides a flexible framework for creating and executing AI-powered workflows with human interaction points, built as a Rails engine for easy integration into existing applications.

Provides a Milkdown-based rich markdown editor as a Rails engine with Stimulus controllers, importmap integration, and rails-active-ui components.

A simple TreeView Rails 8+ gem based on Stimulus (no jQuery is required). A server side handling of the tree is included. The client side display of the usual legend can be adapted to the user's requirements to include links.