Rails

Scenicthoughtbot/scenic

Adds methods to ActiveRecord::Migration to create and manage versioned database views in Rails applications.

shoulda-matchersthoughtbot/shoulda-matchers

RSpec and Minitest-compatible one-liner matchers for testing common Rails functionality like validations and associations.

Wicked Pdfmileszs/wicked_pdf

A Ruby on Rails plugin that generates PDF files from HTML views using wkhtmltopdf.

Logrageroidrage/lograge

A Ruby gem that replaces Rails' verbose default request logging with a single, structured line per request.

Devise token authlynndylanhurley/devise_token_auth

Token-based authentication for Rails JSON APIs, seamlessly integrated with Devise and multiple client libraries.

Auditedcollectiveidea/audited

An ActiveRecord extension for Rails that logs all changes to your models, including who made them and why.

High Voltagethoughtbot/high_voltage

A Rails engine for easily including static pages like 'About us' or marketing content in your application.

rolifyRolifyCommunity/rolify

A simple Ruby role management library with resource scoping, designed to integrate with authentication and authorization gems.

Peekpeek/peek

A profiling tool for Rails applications that displays performance metrics in a top-mounted bar.

factory_bot_railsthoughtbot/factory_bot_rails

A fixtures replacement library for Rails testing with a straightforward definition syntax and multiple build strategies.

gongazay/gon

A Ruby gem that seamlessly passes Rails controller variables to JavaScript, eliminating the need for data attributes or inline scripts.

elasticsearch-railselastic/elasticsearch-rails

A suite of Ruby gems providing seamless Elasticsearch integration for ActiveModel/Record, Rails applications, and Ruby objects.

Cellstrailblazer/cells

A view component library for Ruby and Rails that encapsulates UI into reusable, testable view models.

cellsapotonick/cells

A view component library for Ruby and Rails that encapsulates UI parts into reusable, testable view models.

cocoonnathanvda/cocoon

A Rails gem for dynamically adding and removing nested forms using jQuery, compatible with Formtastic, SimpleForm, and default forms.

Derailed Benchmarksschneems/derailed_benchmarks

A suite of performance benchmarking tools for Ruby on Rails applications to identify memory leaks and optimize speed.

public_activitychaps-io/public_activity

A Ruby gem for tracking model changes and creating activity feeds in Rails applications, similar to GitHub's public activity.

paranoiarubysherpas/paranoia

A Rails gem for soft-deleting records by setting a deleted_at timestamp instead of removing them from the database.

Paranoiaradar/paranoia

A Rails gem for soft-deleting records by setting a deleted_at timestamp instead of removing them from the database.

springrails/spring

A Rails application preloader that speeds up development by keeping the app running in the background.

Apartmentinfluitive/apartment

A Ruby gem for implementing database multi-tenancy in Rails applications using PostgreSQL schemas or separate databases.

apipie-railsapipie/apipie-rails

A DSL and Rails engine for documenting RESTful APIs directly in Ruby code, with live updates and JSON output.

ApipieApipie/apipie-rails

A DSL and Rails engine for documenting RESTful APIs by describing code through Ruby, not comments.

SitemapGeneratorkjvarga/sitemap_generator

A framework-agnostic Ruby gem for generating XML sitemaps with Rails integration and support for multiple sitemap extensions.

rubygems.orgrubygems/rubygems.org

The Ruby community's open-source gem hosting service, providing a public repository for Ruby libraries.

Awesome Nested Setcollectiveidea/awesome_nested_set

A Ruby on Rails ActiveRecord implementation of the nested set pattern for efficient hierarchical data management.

Karafkakarafka/karafka

A Ruby and Rails multi-threaded framework for building efficient Kafka-based event-driven applications.

CKEditorgaletahub/ckeditor

A Ruby on Rails integration gem for CKEditor 4.x, providing WYSIWYG editor functionality with file upload support.

Rpushrpush/rpush

A Ruby gem for sending push notifications to iOS, Android, Windows, and web platforms with reliability and advanced features.

Exception Notificationsmartinez87/exception_notification

A Rails plugin that sends email notifications when exceptions occur in your application.

globalizeglobalize/globalize

Rails I18n library for ActiveRecord model translations, enabling multilingual content storage in separate tables.

ActiveInteractionAaronLasseigne/active_interaction

A service object framework for Rails that encapsulates business logic with input validation and type safety.

counter_culturemagnusvk/counter_culture

A Rails gem providing advanced, flexible counter caches that update on value changes and support multi-level relations.

ActsAsListswanandp/acts_as_list

An ActiveRecord plugin for managing ordered lists of items with scoped positioning and reordering methods.

Respondersheartcombo/responders

A set of Rails responders to dry up your application by automating common response patterns.

Respondersplataformatec/responders

A set of Rails responders to dry up your application by automating common response patterns like flash messages and HTTP caching.