Rails asset wrapper for the Railscast look-n-feel, http://railscasts.com/"

Simple HTML5 charts using the canvas element

Provides an interactive Claude AI session directly in rails c, with Rails-aware context.

A Rack middleware, installed by a Railtie at the top of the stack, that requires a Cloudflare-added origin secret, strips client IP headers a visitor can forge, and sets the client IP from CF-Connecting-IP.

A collection of Rails generators that automate common code generation tasks in Rails applications.

A command palette for Rails using Stimulus and Ninja Keys.

A safe, browser-based Rails console you mount on your app.

RailsContractSync produces and maintains a single committed openapi.yml for a Rails JSON API by combining static route/strong-params introspection with runtime observation of real responses via a Rack middleware. The result is idempotent, preserves hand-written documentation, and is serializer-agnostic.

Rails engine, generators, ActiveJob support, inbox previews and rake tasks for Courrier.

Decrypt, edit, and encrypt Rails credentials.

Resolve git merge conflicts in Rails encrypted credentials by decrypting, merging, and re-encrypting them. Works with merge, rebase, and cherry-pick.

Breadcrumbs for Rails

rails-css_unused scans your stylesheets (CSS/SCSS/Sass) and all view templates (ERB, HAML, Slim), ViewComponents, Phlex components, and Stimulus JS controllers to report CSS class selectors that are defined but never referenced. Supports BEM naming, dynamic class detection, source-file attribution, CI exit codes, and configurable ignore lists — zero runtime overhead.

A Rails 8 engine providing a Stimulus 3 and Tailwind CSS 4 datepicker with accurate Ethiopian/Gregorian conversion.

A jQuery plugin to facilitate the handling of form field dependencies.

Rails Design Profiles keeps public DESIGN.md references separate from executable design tokens. Install an openly licensed reference, review it with your team or AI tools, and define a versioned YAML token profile. The Rails helper emits the active profile as --rdp-* CSS custom properties, and Rails tasks switch the application-wide profile without copying third-party CSS, assets, or branding.

RailsDiscordNotifier captures unhandled exceptions in your Rails application and sends detailed, redacted error reports to a Discord channel or a Google Chat space using an incoming webhook.

Too many users not enough brain memory? Use Rails easy sign in to add an easy menu for signing in with different users. Never need to remember users for demo-ing an app again.

Use the asset pipeline to provide Handlebars templates to EmberJS

Creates and manages internal Rails engines with configurable conventions, safe file mutations, parser-assisted route inspection, engine-specific migration installation, and Rails install generators.