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-ag...

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

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 attributio...

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 Ra...

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.

Add support for different credentials for different environments to Rails

Add logger for error monitoring.

Babel adapter for the Rails asset pipeline.

Rails-Fort provides a modern, animated progress bar for form completion tracking. It automatically detects form fields and displays visual progress as users fill out forms, with multiple customizable effect types including solid, gradient, sections, flash, and merge animations.

Backports for Rails::Generator::TestCase helper modules for Rails 3.2

Rails GuardDog: Beyond brakeman — AI injection, DoS, supply chain, GraphQL auth, and more

highlight.js in gemified, easily Rails-digestible form

A command like history for rails

A bunch of frequently used HTML helpers for Rails apps.

iframe-resizer js package for rails