Awesome Rails Gems

Flexible authentication solution for Rails with Warden.

Simple, efficient background processing for Ruby

A Ruby static code analyzer and formatter, based on the community Ruby style guide.

The administration framework for Ruby on Rails applications.

⚡ A Scope & Engine based, clean, powerful, customizable and sophisticated paginator for Ruby webapps

Minimal authorization through OO design and pure Ruby classes

Forms made easy for Rails! It's tied to a simple DSL, with no opinion on markup.

A library for setting up Ruby objects as test data.

A static analysis security vulnerability scanner for Ruby on Rails applications

A Ruby gem to load environment variables from `.env`.

A community-driven Ruby on Rails style guide

FriendlyId is the “Swiss Army bulldozer” of slugging and permalink plugins for ActiveRecord. It allows you to create pretty URL’s and work with human-friendly strings as if they were numeric ids for ActiveRecord models.

:tada: Makes http fun again!

Object-based searching.

Pagination library for Rails and other Ruby applications

🛒 Solidus, the open-source eCommerce framework for industry trailblazers.

Decorators/View-Models for Rails Applications

AASM - State machines for Ruby classes (plain Ruby, ActiveRecord, Mongoid, NoBrainer, Dynamoid)

Agnostic pagination in plain ruby

Code coverage for Ruby with a powerful configuration library and automatic merging of coverage across test suites

Fast, Nimble PDF Writer for Ruby

Annotate Rails classes with schema and routes info

🐬 Beautiful, performant feature flags for Ruby.

A ruby implementation of the RFC 7519 OAuth JSON Web Token (JWT) standard.

Debugging in Ruby

OpenAI API + Ruby! 🤖❤️ GPT-5 & Realtime WebRTC compatible!

Easy activity tracking for models - similar to Github's Public Activity

A Ruby gem to transform HTML + CSS into PDFs using the command-line utility wkhtmltopdf

A Ruby Library for dealing with money and currency conversion.

Search Engine Optimization (SEO) for Ruby on Rails applications.

Patch-level verification for Bundler

Boot large Ruby/Rails apps faster

Notifications for Ruby on Rails applications

An invitation strategy for devise

Do some browser detection with Ruby. Includes ActionController integration.

All sorts of useful information about every country packaged as convenient little country objects. It includes data from ISO 3166 (countries and states/subdivisions ), ISO 4217 (currency), and E.164 (phone numbers).

The push notification service for Ruby.

:briefcase: Manage application specific business logic.

Turbo-charged counter caches for your Rails app.

A Ruby library that encodes QR Codes

Lightweight job scheduler extension for Sidekiq

lol_dba is a small package of rake tasks that scan your application models and displays a list of columns that probably should be indexed. Also, it can generate .sql migration scripts.

pg_search builds ActiveRecord named scopes that take advantage of PostgreSQL’s full text search

Optimize images using multiple utilities

Versatile PDF creation and manipulation for Ruby

🚀 Configurable framework agnostic plain Ruby 📨 email validator/verifier. Verify email via Regex, DNS, SMTP and even more. Be sure that email address valid and exists.

Ruby gem for phone validation and formatting using google libphonenumber library data

Web-friendly image processing macros for libvips and ImageMagick

A RuboCop extension focused on enforcing Rails best practices and coding conventions.

Code style checking for RSpec files.