🍺 The missing package manager for macOS (or Linux)

🍻 A CLI workflow for the administration of macOS applications distributed as binaries

The Cocoa Dependency Manager.

Effing package management! Build packages for multiple platforms (deb, rpm, etc) with great ease and sanity.

A Chef Cookbook manager

minitest provides a complete suite of testing facilities supporting TDD, BDD, and benchmarking.

Mutation testing for Ruby. AI writes your code. AI writes your tests. But who tests the tests?

Acceptance test framework for web applications

The RSpec monorepo

Ruby: 2 CPUs = 2x Testing Speed for RSpec, Test::Unit and Cucumber

Record your test suite's HTTP interactions and replay them during future test runs for fast, deterministic, accurate tests.

A Ruby library for testing your library against different versions of dependencies.

A mocking and stubbing library for Ruby

Library for stubbing and setting expectations on HTTP requests in Ruby.

A gem providing "time travel", "time freezing", and "time acceleration" capabilities, making it simple to test time-dependent code. It provides a unified method to mock Time.now, Date.today, and DateTime.now in a single call.

Rails application preloader

A PhantomJS driver for Capybara

Headless Chrome Ruby API

Development tool to mock API endpoints quickly and easily - NOT MAINTAINED

Faker refactored.

Watir Powered By Selenium

Test command-line applications with Cucumber-Ruby, RSpec or Minitest.

The instafailing RSpec progress bar formatter

Easy and customizable generation of forged data.

Spinach is a BDD framework on top of Gherkin.

Knapsack splits tests evenly across parallel CI nodes to run fast CI build and save you time.

Generate mocks from ActiveRecord models for unit tests that run fast because they don’t need to load Rails or a database.

a small RSpec clone

An Automatic Automated Test Writer

RR is a test double framework that features a rich selection of double techniques and a terse syntax. ⛺

A Ruby-based framework for acceptance testing

Run RSpec tests on multiple cores. Like parallel_tests but with incremental summarized output. Originally extracted from the Discourse and Rubygems source code.

Custom Emoji Formatters for RSpec

Isolated tests in Ruby.

Create some fake personalities

Principled Test Framework for Ruby and MRuby

DNS mock server written on 💎 Ruby. Mimic any DNS records for your test environment with fake DNS server.

💎 Ruby SMTP mock. Mimic any 📤 SMTP server behavior for your test environment with fake SMTP server.

A library for generating fake data such as names, addresses, and phone numbers.

A home for issues that are common to multiple cucumber repositories

Simple one-liner tests for common Rails functionality

A library for setting up Ruby objects as test data.

A platform for community discussion. Free, open, simple.

The participatory democracy framework. A generator and multiple gems made with Ruby on Rails

A Rails gem to send messages inside a web application

The best Rails forums engine ever.

Check how many times url was shared in social networks, e.g. share counts

Q/A based social network

A privacy-aware, distributed, open source social network.

Deploy web apps anywhere.

Logstash - transport and process your logs, events, or other data

Server automation framework and application

Cloud Foundry BOSH is an open source tool chain for release engineering, deployment and lifecycle management of large scale distributed services.

Blazing fast deployer and server automation tool

A mass deployment tool for Docker fleets

Einhorn: the language-independent shared socket manager

A capistrano/rails plugin that makes it easy to deploy/manage/scale to various service providers, including EC2, DigitalOcean, vSphere, and bare metal servers.

Sunzi: Server configuration automation for minimalists

SSH private and public key generator in pure Ruby (RSA & DSA)

ruby bindings for liblxc

Easy full stack backup operations on UNIX-like systems.

Configuration management tool inspired by Chef, but simpler and lightweight. Formerly known as Lightchef.

Chef Infra, a powerful automation platform that transforms infrastructure into code automating how infrastructure is configured, deployed and managed across any environment, at any scale

Simple positioning for Active Record models.

🃏🗑 Soft deletes for ActiveRecord done right

Just the right amount of Rails eager loading

Track changes to your rails models

Audited (formerly acts_as_audited) is an ORM extension that logs all changes to your Rails models.

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

An ActiveRecord plugin for managing lists.

Easily and efficiently make your ActiveRecord models support hierarchies

Bit array for ActiveRecord

A tagging plugin for Rails applications that allows for custom tagging along dynamic contexts.

A library for bulk insertion of data into your database using ActiveRecord.

Organise ActiveRecord model into a tree structure

acts_as_paranoid for Rails 5, 6 and 7

An awesome replacement for acts_as_nested_set and better_nested_set.

Attach comments to ActiveRecord's SQL queries

Enumerated attributes with I18n and ActiveRecord/Mongoid support

Database changes log for Rails

Easy multi-tenancy for Rails in a shared database setup.

ActiveRecord plugin allowing you to hide and restore records without actually deleting them.

An acts_as_sortable/acts_as_list replacement built for Rails 4+

Efficient bulk inserts with ActiveRecord

Handle unread records and mark them as read with Ruby on Rails

ActsAsTree -- Extends ActiveRecord to add simple support for organizing items into parent–children relationships.

Allow you to pluck attributes from nested associations without loading a bunch of records.

Multi-user non-linear history tracking, auditing, undo, redo for mongoid.

ActiveRecord Mixin for Safe Destroys

Easy multi-tenanting for Rails5 (or Rails4) + Devise

This gem implements a flexible time-ordered activity feeds commonly used within social networking applications. As events occur, they are pushed into the Feed and distributed to all users that need to see the event. Upon the user visiting their "feed page", a pre-populated ordered list of events is returned by the library.

Download, unpack from a ZIP/TAR/GZ/BZ2 archive, parse, correct, convert units and import Google Spreadsheets, XLS, ODS, XML, CSV, HTML, etc. into your ActiveRecord models. Uses RemoteTable gem internally.

Collection of ActiveModel/ActiveRecord validators

A tree structure for Mongoid documents using the materialized path pattern

Rails Plugin - soft-delete your ActiveRecord records. It's like an explicit version of ActsAsParanoid

A data migration and visualization command line gem in Ruby

n Booleans = 1 Integer, saves columns and migrations.

ActiveRecord Sharding Plugin

Simplified snapshots and restoration for ActiveRecord models and associations with a transparent white-box implementation

Extending Arel

An ActiveRecord plugin for atomic archiving and unarchiving of object trees. Inspired by ActsAsParanoid and PermanentRecord

Make use of recursive queries in Rails when using Postgresql or SQLite

⭐ A true Bayesian rating system with scope and cache enabled

Database multi-tenancy for Rack (and Rails) applications

Reputation engine for Rails apps

Flexible authentication solution for Rails with Warden.

OmniAuth is a flexible authentication system utilizing Rack middleware.

Doorkeeper is an OAuth 2 provider for Ruby on Rails / Grape.

A simple ruby authentication solution.

🔐 oauth2 - A Ruby wrapper for the OAuth 2.0, & 2.1 Authorization Frameworks, including OpenID Connect (OIDC)

Ruby's Most Advanced Authentication Framework

An authentication system generator for Rails applications.

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

General Rack Authentication Framework

Magical Authentication

Oath is rails authentication made simple. Previously known as Monban

JWT authentication solution for Rails APIs

Rails authentication with email & password.

Metasploit Framework

Next generation web scanner

🔑 Hash type identifier (CLI & lib)

Rack middleware for blocking & throttling

Ronin is a Free and Open Source Ruby Toolkit for Security Research and Development. Ronin also allows for the rapid development and distribution of code, exploits, payloads, etc, via 3rd-party git repositories.

Patch-level verification for Bundler

Pipal, THE password analyser

CMS/LMS/Library etc Versions Fingerprinter

Manages application of security headers with many safe defaults

Create agents that monitor and act on your behalf. Your agents are standing by!

🚫 Stop saying "you forgot to …" in code review (in Ruby)

A framework for gradual system automation

Polyglot workflows without leaving the comfort of your technology stack.

Ruby support for Neovim

🚀 The easiest way to automate building and releasing your iOS and Android apps

A platform for developing apps using JRuby on Android.

☁️ Try the demo project of any Android Library

PubNub Ruby-based APIs

🔬 A Ruby library for carefully refactoring critical paths.

A static analysis security vulnerability scanner for Ruby on Rails applications

A fast, powerful type checker designed for Ruby

A Ruby code quality reporter

Quick automated code review of your changes

⚡ Don't make your Rubies go fast. Make them go fasterer ™. ⚡

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

Code smell detector for Ruby

Ruby production code coverage collection and reporting (line of code usage)

🏥 A Ruby gem that helps you refactor your legacy code

Flog reports the most tortured code in an easy to read pain report. The higher the score, the more pain the code is in.

A Rake task gem that helps you find the unused routes and controller actions for your Rails 3+ app

Flay analyzes code for structural similarities. Differences in literal values, variable, class, method names, whitespace, programming style, braces vs do/end, etc are all ignored.

A fist full of code metrics

pippi

Catch unsafe migrations in development

The tool to avoid various issues due to inconsistencies and inefficiencies between a database schema and application models.

Versioned database views for Rails

A performance dashboard for Postgres

Catch unsafe PostgreSQL migrations in development and run them easier in production (code helpers for table/column renaming, changing column type, adding columns with default, background migrations, etc).

Generic connection pooling for Ruby

Rails Database Viewer and SQL Query Runner

Strategies for cleaning databases in Ruby. Can be used to ensure a clean state for testing.

Online MySQL schema migrations

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.

Rails task to dump your data to db/seeds.rb

Adds foreign key helpers to migrations and correctly dumps foreign keys to schema.rb

Advanced seed data handling for Rails, combining the best practices of several methods together.

Seedbank gives your seed data a little structure. Create seeds for each environment, share seeds between environments and specify dependencies to load your seeds in order. All nicely integrated with simple rake tasks.

Polo travels through your database and creates sample snapshots so you can work with real world data in development.

SchemaPlus provides a collection of enhancements and extensions to ActiveRecord

Database constraints made easy for ActiveRecord.

Upsert on MySQL, PostgreSQL, and SQLite3. Transparently creates functions (UDF) for MySQL and PostgreSQL; on SQLite3, uses INSERT OR IGNORE.

Seamless second database integration for Rails.

Read from standby databases for ActiveRecord

💨 Writing Fast Ruby 😍 -- Collect Common Ruby idioms.

RSpec Best Practices

A community-driven Ruby coding style guide

Ruby Tricks, Idiomatic Ruby, Refactoring and Best Practices

📚 Fundamental programming with ruby examples and references. It covers threads, SOLID principles, design patterns, data structures, algorithms. Books for reading. Repo for website https://github.com/khusnetdinov/betterdocs

A community-driven Ruby on Rails style guide

Simple, but flexible HTTP client library, with support for multiple backends.

Rack Middleware for handling Cross-Origin Resource Sharing (CORS), which makes cross-origin AJAX possible.

Pure Ruby implementation of HTTP/2 protocol

🎉 Makes http fun again!

Simple HTTP and REST client for Ruby, inspired by microframework syntax for specifying actions.

Typhoeus wraps libcurl in order to make fast and reliable requests.

Heavy metal SOAP client

Usable, fast, simple HTTP 1.1 for Ruby

DeviceDetector is a precise and fast user agent parser and device detector written in Ruby

'httpclient' gives something like the functionality of libwww-perl (LWP) in Ruby.

Log and Analyze Outgoing HTTP Requests

Ruby HTTP client based on libcurl

Secret User Agent of HTTP

A lightweight, thread-safe Ruby library for parsing Accept-Language HTTP headers as defined in RFC 2616.

HTTP (The Gem! a.k.a. http.rb) - a fast Ruby HTTP client with a chainable API, streaming support, and timeouts

📮 A fully featured open source mail delivery platform for incoming & outgoing e-mail

First-party email analytics for Rails

Making HTML emails comfortable for the Ruby rockstars

A curses threads-with-tags style email client (mailing list: supmua@googlegroups.com)

Preview mail in the browser instead of sending.

A Really Ruby Mail Library

CSS styled emails without the hassle.

Simplify receiving email in Rails (deprecated)

Gibbon is an API wrapper for MailChimp's API

Send e-mail straight from forms in Rails with I18n, validations, attachments and request information.

📫 Rails Engine to preview emails in the browser

Incoming! helps you receive email in your Rack apps.

The express way to send mail from Ruby.

Multithreaded, Postgres-based, Active Job backend for Ruby on Rails.

A super efficient Amazon SQS thread based message processor for Ruby.

A Ruby job queue that uses PostgreSQL's advisory locks for speed and reliability.

Ruby and Rails efficient Kafka processing framework

Makes your background jobs interruptible and resumable by design.

Make your long-running sidekiq jobs interruptible and resumable.

Database based asynchronous priority queue system -- Extracted from Shopify

Fast and distributed workflow runner using ActiveJob and Redis

Simple and reliable beanstalkd job queue for ruby

Ordered background jobs processing

Idiomatic, fast and well-maintained JRuby client for RabbitMQ

A fast background processing framework for Ruby and RabbitMQ

Bunny is a popular, easy to use, mature Ruby client for RabbitMQ

Resque is a Redis-backed Ruby library for creating background jobs, placing them on multiple queues, and processing them later.

Sucker Punch is a Ruby asynchronous processing library using concurrent-ruby, heavily influenced by Sidekiq and girl_friday.

Manage complex tmux sessions easily

Ruby string class extension. It add some methods to set color, background color and text effect on console easier using ANSI escape sequences.

A Ruby gem that beautifies the terminal's ls command, with color and font-awesome icons. 🎉

Friendly English-like interface for your command line. Don't remember a command? Ask Betty.

Ruby/ProgressBar is a text progress bar library for Ruby.

Ruby ASCII Table Generator, simple and feature rich.

The best data slicer! Watch a 3 minute screencast at http://tableprintgem.com

Terminal output styling with intuitive and clean API.

STDOUT text formatting

Ruby in your shell!

Ruby gem for ANSI terminal colors 🎨︎ VERY FAST

Colorful Terminal Spinner for Ruby 😀︎

Plain text table generator for Ruby, with a DRY, column-based API

Pretty print your Ruby objects with style -- in full color and with proper indentation

A Ruby Gem that adds annotations to your Rails models and route files.

A simple, Git-powered wiki with a local frontend and support for many kinds of markup and content.

Automatically generate change log from your tags, issues, labels and pull requests on GitHub.

Ruby on Rails API documentation tool

Automatically generate API documentation from RSpec

Add OAPI/swagger v2.0 compliant documentation to your grape API

RDoc produces HTML and online documentation for Ruby projects.

A documentation analysis tool for the Ruby language

A Rails engine to provide the ability to add documentation to a Rails application

Library add improve test log for RSpec and WebMock, validate its according to API Blueprint and Open API, show the documentation coverage with log.

A markdown based documentation system for style guides.

Spree is an API-first, open-source eCommerce platform for fast growing businesses and enterprises. Spree supports complex commerce scenarios natively — from B2B wholesale to multi-vendor marketplace to global multi-region or multi-tenant distributor platforms. Use each model independently or combine them as your business evolves.

Ruby library for the Stripe API.

💳 ruby gem for validating credit card numbers, generating valid numbers, luhn checks

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

Braintree Ruby library

Workarea is an enterprise-grade Ruby on Rails commerce platform

Active Merchant is a simple payment abstraction library extracted from Shopify. The aim of the project is to feel natural to Ruby users and to abstract as many parts as possible away from the user to offer a consistent interface across all supported gateways.

Ruby on Rails Ecommerce platform, perfect for your small business solution.

help to kill N+1 queries and unused eager loading

Ruby Tests Profiling Toolbox

Profiler for your development and production Ruby rack apps.

Go faster, off the Rails - Benchmarks for your whole Rails app

Sampling CPU profiler for Ruby

a sampling call-stack profiler for ruby 2.2+

A ruby profiler. See https://ruby-prof.github.io for more information.

Provides iteration per second benchmarking for Ruby

⚡ Powerful tool for avoiding N+1 DB or HTTP queries

Take a peek into your Rails applications.

A new profiler for Ruby. With a GUI

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

Intelligent search made easy

Object-based searching.

Ruby integrations for Elasticsearch

High-level Elasticsearch Ruby framework based on the official elasticsearch-ruby client

Textacular exposes full text search capabilities from PostgreSQL, and allows you to declare full text indexes. Textacular will extend ActiveRecord with named_scope methods making searching easy and fun!

Solr-powered search for Ruby objects

Sphinx/Manticore plugin for ActiveRecord/Rails

Search engine like fulltext query support for ActiveRecord

Easily search you ActiveRecord models with a simple query language that converts to SQL.

Ruby client for Typesense: https://github.com/typesense/typesense

Simple ElasticSearch client for ruby with AR integration

The Ruby bindings of Groonga.

Simple full text search for Mongoid ORM

Map incoming controller parameters to named scopes in your resources

Liquid markup language. Safe, customer facing template language for flexible web apps.

Logic-less Ruby templates.

Generic interface to multiple Ruby template engines

The Curly template language allows separating your logic from the structure of your HTML templates.

Slim is a template language whose goal is to reduce the syntax to the essential parts without becoming cryptic.

HTML Abstraction Markup Language - A Markup Haiku

Alba is a JSON serializer for Ruby, JRuby and TruffleRuby.

Simple, Fast, and Declarative Serialization Library for Ruby

Jbuilder: generate JSON objects with a Builder-style DSL

An opinionated toolkit for writing excellent APIs in Ruby.

Ruby library for defining, generating and validating JSON Schema

A fast JSON:API serializer for Ruby (fork of Netflix/fast_jsonapi)

General ruby templating with json, bson, xml, plist and msgpack support

Parse and render REST API documents using representers.

A plugin for versioning Rails based RESTful APIs.

🍰 Version Cake is an unobtrusive way to version APIs in your Rails or Rack apps

makes creating API responses in Rails easy and fun

A dead simple API wrapper

Build JSON API-compliant APIs on Rails with no (or less) learning curve.

Speedy Rails JSON serialization with built-in caching

🥞 The thin API stack.

ActiveModel::Serializer implementation and Rails hooks

Interact with REST services in an ActiveRecord-like manner

Her is an ORM (Object Relational Mapper) that maps REST resources to Ruby objects. It is designed to build applications that are powered by a RESTful API instead of a database.

Easy file attachment management for ActiveRecord

Classier solution for file uploads for Rails, Sinatra and other Ruby web frameworks

A Ruby gem for on-the-fly processing - suitable for image uploading in Rails, Sinatra and much more!

File Attachment toolkit for Ruby applications

Ruby file uploads, take 3

Yet another approach to file upload

Upload files securely

A tool to download, compile, and install Ruby on Unix-like systems.

Manage your app's Ruby environment

Installs Ruby, JRuby, TruffleRuby, or mruby

A tool for changing your $GEM_HOME

Simple ruby version manager for fish

Changes the current Ruby

A command-line power tool for Twitter.

A Rubyesque interface to Gmail, with all the tools you'll need.

A lightweight, efficient Ruby gem for interacting with Whatsapp Cloud API.

A simple wrapper for posting to slack channels

The official gem for the Instagram API

A Ruby gem for communicating with the Twilio API and generating TwiML

A simple EventMachine-based library for consuming Twitter's Streaming API.

Ruby wrapper and CLI for the GitLab REST API

Terjira is a very interactive and easy to use CLI tool for Jira.

A Rubyesque interface to Gmail. Connect to Gmail via IMAP and manipulate emails and labels. Send email with your Gmail account via SMTP. Includes full support for parsing and generating MIME messages.

Ruby wrapper for the LinkedIn API

The reliable YouTube API Ruby client

Implementation of the Trello API for Ruby

Ruby library for Pusher Channels HTTP API

HipChat HTTP API Wrapper in Ruby with Capistrano hooks

Ruby client for the Wikipedia API

Ad Manager SOAP API Client Libraries for Ruby

A Ruby wrapper for the Slack API

Ruby client library for Dropbox API v2

You can easily make Slack Bot!! ⭐

A Ruby client for the Notion API

Upload and manage your assets in the iTunes Store using the iTunes Store’s Transporter (iTMSTransporter).

A full-stack Facebook Graph API wrapper.

Buff is a Ruby Wrapper for the Buffer API

A Ruby interface to the Twitter API.

A Ruby client for the Salesforce REST API.

Lightweight Ruby

A high performance implementation of the Ruby programming language, built on GraalVM.

The Rubinius Language Platform

a work-in-progress Ruby compiler, written in Ruby and C++

JRuby, an implementation of Ruby on the JVM

Ruby ♥︎ JavaScript

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

A Rails form builder plugin with semantically rich and accessible markup.

Dynamic nested forms using jQuery made easy; works with formtastic, simple_form or default forms

Form objects decoupled from models.

Official repository of the bootstrap_form gem, a Rails form builder that makes it super easy to create beautiful-looking forms using Bootstrap 5.

Making dynamic surveys should be easy!

Rails form builder for Bootstrap 4 markup that actually works!

The simplest way to group temporal data

Rails engine for cache-friendly, client-side local time

Chronic is a pure Ruby natural language date parser.

TZInfo - Ruby Timezone Library

Ruby Date Recurrence Library - Allows easy creation of recurrence rules and fast querying

Date and time validation plugin for ActiveModel and Rails. Supports multiple ORMs and allows custom date/time formats.

Support for doing time math in business hours and days

Lets you find ActiveRecord + Mongoid objects by year, month, fortnight, week and more!

Date and time formatting for humans.

Recurring events library for Ruby. Enumerable recurrence objects and convenient chainable interface.

A collection of Ruby methods to deal with statutory and other holidays. You deserve a holiday!

⏰ A modern ruby gem allowing to do time calculation with business / working hours.

Time calculations using business hours.

Accurate current and historical timezones for Ruby with support for Geonames and Google latitude - longitude lookups.

⌛ Ruby library to compute distance of dates in words. Originally built for Jekyll.

Gem which calculates the difference between two times

Tiny DSL for idiomatic date parsing and formatting in Ruby

Ruby's bikeshed-proof linter and formatter 🚲

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

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

Code style checking for RSpec files.

An extension of RuboCop focused on code performance checks.

Prettier Ruby Plugin

niceql gem repo. Nice, colorized SQL formatting in ruby.

Fluentd: Unified Logging Layer (project under CNCF)

An attempt to tame Rails' default policy to log everything.

Log outgoing HTTP requests in ruby

A flexible logging library for use in Ruby programs based on the design of Java's log4j library.

A Ruby structured logging is capable of handling a message, custom data or an exception easily and generates JSON or human readable logs.

Log4r is a comprehensive and flexible logging library for use in Ruby programs. It features a heirarchical logging system of any number of levels, custom level names, multiple output destinations per log event, custom formatting, and more.

Simple logging

Dead simple Ruby Syslog logger

A Rails engine that helps you put together a super-flexible admin dashboard.

A robust Admin Interface for Ruby on Rails apps

A modern, responsive admin framework for Ruby on Rails

Save time and headaches, and create a more easily maintainable set of pages, with ActiveScaffold. ActiveScaffold handles all your CRUD (create, read, update, delete) user interface needs, leaving you more time to focus on more challenging (and interesting!) problems.

Low-code Admin panel and Business intelligence Rails engine. No DSL - configurable from the UI. Rails Admin, Active Admin, Blazer modern alternative.

Rapid scaffold builder for Turbo-Rails and Hotwire. Get the tutorial now at:

RailsAdmin is a Rails engine that provides an easy-to-use interface for managing your data

Minimal authorization through OO design and pure Ruby classes

Authorization framework for Ruby/Rails applications

The authorization Gem for Ruby on Rails.

Yet another role-based authorization system for Rails

Multi-role and whitelist based authorization gem for Rails (and not only Rails!)

Scope-based authorization for Ruby on Rails.

Easy to use and read action and content based authorizations.

Simple role-based authorization library for Ruby on Rails

scheduler for Ruby (at, in, cron and every jobs)

Cron jobs in Ruby

Scheduler / Cron for Sidekiq jobs

A light-weight job scheduling system built on top of Resque

An enhancement for Heroku Scheduler + Sidekiq for scheduling jobs at specific times.

A lightweight cron scheduler for the async job worker Que

A ruby job scheduler which runs jobs each in their own thread in a persistent process.

🕰️ Monitor your cron jobs

Synchronises Assets between Rails and S3

⚡️ Vite.js in Ruby, bringing joy to your JavaScript experience

Bundler-like DSL + rake tasks for Bower on Rails

Autoprefixer for Ruby and Ruby on Rails

Rack-based asset packaging system

Use Webpack to manage app-like JavaScript modules in Rails

A gem. For Emoji. For everyone. ❤

👎 🚋 Less.js For Rails

Bundler for Sprockets

A Lightweight Sass Tool Set

Sentry SDK for Ruby

The official Airbrake library for Ruby applications

BugSnag error monitoring & reporting software for rails, sinatra, rack and ruby

Better error page for Rack apps

The open source error catcher that's Airbrake API compliant 🇺🇦

Exception Notifier Plugin for Rails

Ruby on Rails Custom Error Pages

Exception tracking and logging from Ruby to Rollbar

Nested exceptions for Ruby

Fast, Nimble PDF Writer for Ruby

PDF generator (from HTML) plugin for Ruby on Rails

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

Versatile PDF creation and manipulation for Ruby

Super simple PDF invoicing

A Pure ruby library to merge PDF files, number pages and maybe more...

Tool for extracting pages from pdf as images and text as strings.

A Ruby library to plot charts in PDF files

RGhost is a document creation and conversion API. It uses the Ghostscript framework for the format conversion, utilizes EPS templates and is optimized to work with larger documents. Support(PDF,PS,GIF,TIF,PNG,JPG,etc)

A framework for creating e-books from Markdown using Ruby. Using the Prince PDF generator, you'll be able to get high quality PDFs. Also supports EPUB, Mobi, Text and HTML generation.

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

Simple Rails app configuration

Easiest way to add multi-environment yaml settings to Rails, Sinatra, Padrino and other Ruby projects.

Configuration library for Ruby gems and applications

A super cool, simple, and feature rich configuration system for Ruby apps.

Sail is a lightweight Rails engine that brings an admin panel for managing configuration settings on a live Rails app

Ensures presence and type of your app's ENV-variables (mirror)

"Global" provides accessor methods for your configuration data

A surprisingly configurable convention-based approach to managing your application's custom configuration settings.

The simplest yaml to ENV config loader.

Flexible configuration for Ruby applications

Configus helps you easily manage environment specific settings

A high-performance web server for Ruby, supporting HTTP/1, HTTP/2 and TLS.

iodine - HTTP / WebSockets Server for Ruby with Pub/Sub support

A High Performance HTTP Server for Ruby

A very fast & simple Ruby web server

TorqueBox Ruby Platform

A Ruby/Rack web server built for parallelism

Sequel: The Database Toolkit for Ruby

The Official Ruby Object Mapper for MongoDB

Object-Hash Mapping for Redis

Data mapping and persistence toolkit for Ruby

Map Redis types directly to Ruby objects

Ruby persistence framework with entities and repositories

Ruby ORM for RethinkDB

Ruby: parallel processing made simple and fast

EventMachine: fast, simple event-processing library for Ruby programs

Fine-grained concurrency for Ruby

Modern concurrency tools including agents, futures, promises, thread pools, supervisors, and more. Inspired by Erlang, Clojure, Scala, Go, Java, JavaScript, and classic concurrency patterns.

brain-dead simple parallel processing for ruby

Hashie is a collection of classes and mixins that make Ruby hashes more powerful.

Addressable is an alternative implementation to the URI implementation that is part of Ruby's standard library. It is flexible, offers heuristic parsing, and additionally provides extensive support for IRIs and URI templates.

The wise choice for Ruby memoization

[DISCONTINUED ] Attributes on Steroids for Plain Old Ruby Objects

What ActiveModel left out

Ruby Facets

Takes some boilerplate out of Ruby with methods like attr_initialize.

Docile keeps your Ruby DSLs tame and well-behaved

Small, focused, awesome methods added to core Ruby classes. Home of the endlessly useful nil_chain.

Ruby core extentions and class utilities for Hanami

Efficient, Immutable, Thread-Safe Collection classes for Ruby

Code. Music. Live.

🎧 A Slack-Powered music bot for Spotify

🎹🎸A music theory library with a command-line interface

Fastest end-to-end CSV ingestion for Ruby (with C acceleration). SmarterCSV auto-detects formats, applies smart defaults, and returns Rails-ready hashes for seamless use with ActiveRecord, Sidekiq, parallel jobs, and S3 pipelines — even for messy user-uploaded real-world data.

Ruby algorithms and data structures. C extensions

ID3-based implementation of the ML Decision Tree algorithm

Calling Python functions from the Ruby language

Data Analysis in RUby

Tools for scientific computation in Ruby

Official gem repository: Ruby kernel for Jupyter/IPython Notebook

Versioned fork of the OpenCV gem for Ruby

A general classifier module to allow Bayesian and other types of classifications. A fork of cardmagic/classifier.

Dense and sparse linear algebra library for Ruby via SciRuby

BloomFilter(s) in Ruby: Native counting filter + Redis counting/non-counting filters

Ruby/Numo::NArray - New NArray class library

RGL is a framework for graph data structures and algorithms in Ruby.

bioruby

Ruby & C implementation of Jaro-Winkler distance algorithm which supports UTF-8 string.

A suite for basic and advanced statistics on Ruby.

daru-view is for easy and interactive plotting in web application & IRuby notebook. daru-view is a plugin gem to the existing daru gem.

Probability distributions for Ruby.

Ruby bindings for the SQLite3 embedded database

A modern, simple and very fast Mysql library for Ruby - binding to libmysql

A PostgreSQL client library for Ruby

Trilogy is a client library for MySQL-compatible database servers, designed for performance, flexibility, and ease of embedding.

Lightweight Redis Client

A Ruby client library for Redis

The Official MongoDB Ruby Driver

SQL Server Adapter For Rails

TinyTDS - Simple and fast FreeTDS bindings for Ruby using DB-Library.

A thin Ruby wrapper to the Neo4j Rest API

[MAINTENANCE ONLY] DataStax Ruby Driver for Apache Cassandra

Manage translation and localization with static analysis, for Ruby i18n

Rails I18n de-facto standard library for ActiveRecord model/data translation.

Internationalization (i18n) library for Ruby

🌐 Minimalistic and fast i18n library for Ruby

Repository for collecting Locale data for Ruby on Rails I18n as well as other interesting, Rails related I18n stuff

Ruby implementation of the ICU (International Components for Unicode) that uses the Common Locale Data Repository to format dates, plurals, and more.

Tolk is a web interface for doing i18n translations packaged as an engine for Rails applications

I18n tool to translate your Ruby application.

Translations with speech synthesis in your terminal as a ruby gem

Ruby GetText, but 12x faster + 530x less garbage + simple + clean namespace + threadsafe + extendable + multiple backends

Geospatial data library for Ruby

Complete Ruby geocoding solution.

Enables easy Google map + overlays creation in Ruby apps

Official Geokit Gem. Geokit gem provides geocoding and distance/heading calculations. Pair with the geokit-rails plugin for full-fledged location-based app functionality.

The Ruby gem for querying Maxmind.com's GeoIP database, which returns the geographic location of a server given its IP address

Interactor provides a common interface for performing complex user interactions.

A micro library providing Ruby objects with Publish-Subscribe capabilities

💼 Manage application specific business logic.

Series of Actions with an emphasis on simplicity.

Compose your business logic into commands that sanitize and validate input.

A slice of functional programming to chain ruby services and blocks, thus providing a new approach to flow control. Make them flow!

Create encapsulated systems of objects and focus on their interactions

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

Build LLM-powered applications in Ruby

Rumale is a machine learning library in Ruby

Artificial Intelligence for Ruby - A Ruby playground for AI researchers

Transform ML models into a native code (Java, C, Python, Go, JavaScript, Visual Basic, C#, R, PowerShell, PHP, Dart, Haskell, Ruby, F#, Rust) with zero dependencies

Deep learning for Ruby, powered by LibTorch

Ruby library for interfacing with FANN (Fast Artificial Neural Network)

Deep learning for Ruby

Ruby language bindings for LIBSVM

PredictionIO Ruby SDK

Machine Learning & Data Mining with JRuby

Guard::LiveReload automatically reload your browser when 'view' files are modified.

The Listen gem listens to file modifications and notifies you about the changes.

Restarts an app when the filesystem changes. Uses growl and FSEventStream if on OS X.

A trusty CLI companion to monitor file changes and automatically run the corresponding Ruby specs. Ready to assist on any Ruby project, no setup needed!

Guard is a command line tool to easily handle events on file system modifications.

SitemapGenerator is a framework-agnostic XML Sitemap generator written in Ruby with automatic Rails integration. It supports Video, News, Image, Mobile, PageMap and Alternate Links sitemap extensions and includes Rake tasks for managing your sitemaps, as well as many other great features.

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.

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

Rails middleware gem for prerendering javascript-rendered pages on the fly for SEO

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

A statesmanlike state machine library.

A minimal finite state machine with a straightforward syntax.

Ruby finite-state-machine-inspired API for modeling workflow

Adds support for creating state machines for attributes on any Ruby class

State machine extracted from ActiveModel

Minimal Finite State Machine

A super-slim statemachine-like support library

Step-by-step debugging and stack navigation in Pry

The gem that has been saving people from typos since 2014

Debugging in Ruby

Rails >= 3 pry initializer

Displays the results of every line of code in your file

☠️ A development tool that reveals your UI's bones

ObjectTracer tracks objects and records their activities

🐬 Beautiful, performant feature flags for Ruby.

Feature flippers.

Experiment Driven Development for Ruby

A Rails Engine framework that helps safe and rapid feature prototyping

Unleash client SDK for Ruby

📈 The Rack Based A/B testing framework

🏆 The Best Pagination Ruby Gem 🥇

Find next / previous Active Record(s) in one query

Pagination library for Rails and other Ruby applications

Cursor-based pagination for ActiveRecord

Manage Procfile-based applications

Ruby process monitor

Process monitoring tool. Inspired from Bluepill and God.

🐊 Run processes in the background (and foreground) on Mac & Linux from a Procfile (for production and/or development environments)

simple process monitoring tool

A Rails plugin which provides a health checking and monitoring API of various services and application aspects.

Manage your Redis instance (see keys, memory used, connected client, etc...)

Parse Photoshop files in Ruby with ease

FastImage finds the size or type of an image given its uri by fetching as little as needed

mini replacement for RMagick

High-level image processing wrapper for libvips and ImageMagick/GraphicsMagick

Ruby extension for the libvips image processing library.

Ruby bindings for ImageMagick

Ruby wrapper around pHash, the perceptual hash library for detecting duplicate multimedia files

Better ImageMagick for Ruby

Mechanize is a ruby library that makes automated web interaction easy.

A batteries-included framework for easy web-scraping. Just add CSS! (Or do more.)

Lightweight Ruby web crawler/scraper with an elegant DSL which extracts structured data from pages.

Write web scrapers in Ruby using a clean, AI-assisted DSL. Kimurai uses AI to figure out where the data lives, then caches the selectors and scrapes with pure Ruby. Get the intelligence of an LLM without the per-request latency or token costs.

Ruby gem for web scraping purposes. It scrapes a given URL, and returns you its title, meta description, meta keywords, links, images...

A versatile Ruby web spidering library that can spider a site, multiple domains, certain links or infinitely. Spidr is designed to be fast and easy to use.

Ruby gem that fetches images and metadata from a given URL. Much like popular social website with link preview.

A make-like build utility for Ruby.

General purpose Command Line Interface (CLI) framework for Ruby

Toolkit for developing sleek command line apps.

Make awesome command-line applications the easy way

Simple Lightweight Option Parsing - ✨ new contributors welcome ✨

The complete solution for Ruby command-line executables

a Ruby command-line application framework

Run shell commands safely, even with user-supplied values

a class factory and dsl for generating command line programs real quick

Optimist is a commandline option parser for Ruby that just gets out of your way.

Decorators/View-Models for Rails Applications

A set of Rails responders to dry up your application

Wrap your objects with a helper to easily show them

A helper for creating declarative interfaces in controllers

Make highcharts a la ruby , works in rails 5.X / 4.X / 3.X, and other ruby web frameworks

Generate Entity-Relationship Diagrams for Rails applications

Ruby on Rails model and controller UML class diagram generator. (`brew/port/apt-get install graphviz` before use!)

Create beautiful generative geometric background images from a string.

[MIRROR] Ruby interface to the GraphViz graphing tool

Beautiful and interactive visualizations for your ruby web pages powered by ApexCharts.JS. 📊

kramdown is a fast, pure Ruby Markdown superset converter, using a strict syntax definition and supporting several common extensions.

The safe Markdown parser, reloaded.

A ruby gem to liberate content from Microsoft Word documents

A pure-Ruby Markdown-superset interpreter (Official Repo).

ZMediumToMarkdown is a powerful tool that allows you to effortlessly download and convert your Medium posts to Markdown format.

A fully configurable and extendable Git hook manager

ruby bindings to libgit2

Reflow automatically creates pull requests, ensures the code review is approved, and squash merges finished branches to master with a great commit message template.

A web frontend for Git repositories

✂️ Peruse and delete git branches ergonomically

Find the first broken commit without having to learn git bisect

A Rails application template with our standard defaults, optimized for deployment on Heroku.

Rails Composer. The Rails generator on steroids for starter apps.

Opinionated rails application templates.

Bootstrappers is the base Rails application using Bootstrap template and other goodies.

Rails application generator that builds applications with the common customization stuff already done.

The web app builder for Rails (moved from tablatom/hobo)

Ruby access to the clipboard on Windows, Linux, macOS, Java, WSL and more platforms 📋︎

Improvements for Ruby's IRB console 💎︎

Supercharged method introspection in IRB

IRB with Typed Completion

A runtime developer console and IRB alternative with powerful introspection capabilities.

A framework for building reusable, testable & encapsulated view components in Ruby on Rails.

View components for Ruby and Rails.

Object-oriented views in Ruby.

An opinionated way of organizing front-end code in Ruby on Rails, based on components

The official AWS SDK for Ruby

Rails engine providing access to files in cloud storage

CloudFormation made easy

The Ruby cloud services library.

Simple, powerful, first-party analytics for Rails

Rails Plugin that tracks impressions and page views

Tracking made easy: Don’t fool around with adding tracking and analytics partials to your app and concentrate on the things that matter.

First-party, privacy-focused traffic analytics for Ruby on Rails applications.

Google Analytics Reporting API Client for Ruby

Ruby library to perform server-side tracking into the official Google Analytics Measurement Protocol

Ruby implementation of GraphQL

Simple authorization gem for GraphQL 🔒

A query batching executor for the graphql gem

High performance memcached client for Ruby

IdentityCache is a blob level caching solution to plug into Active Record. Don't #find, #fetch!

📰 Pooled active support compliant caching with redis

Write Through and Read Through caching library inspired by CacheMoney and cache_fu, support ActiveRecord 4, 5 and 6.

A set of Rack middleware and cache helpers that implement various caching strategies.

Action caching for Action Pack (removed from core in Rails 4.0)

Kashmir is a Ruby DSL that makes serializing and caching objects a snap.

Cache Active Model Records in Rails 3

A self-hosted, anti-social RSS reader.

A feed parsing library

A simple, flexible, extensible, and liberal RSS and Atom reader for Ruby. It is designed to be backwards compatible with the standard RSS parser, but will never do RSS generation.

feedparser gem - (universal) web feed parser and normalizer (XML w/ Atom or RSS, JSON Feed, HTML w/ Microformats e.g. h-entry/h-feed or Feed.HTML, Feed.TXT w/ YAML, JSON or INI & Markdown, etc.)

Extensible Ruby wrapper for Atom and RSS parsers

Your Rails variables in your JS

render_async lets you include pages asynchronously with AJAX

Rails view helper to manage "active" state of a link

Bootstrap Helpers for Ruby

Page-specific javascript for Rails applications with the ability of passing data.

Collection of filters that transform plain text into HTML code.

Business intelligence made simple

The exceptionally handsome dashboard framework for Rails.

ComfortableMexicanSofa is a powerful Ruby on Rails 5.2+ CMS (Content Management System) Engine

CMS for Rails. For Reals.

Storytime is a Rails 4+ CMS and blogging engine, with a core focus on content. It is built and maintained by @cultivatelabs

A self hosted Web publishing platform on Rails.

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

A repository of geographic regions for Ruby

E164 international phone number normalizing, splitting, formatting.

Ruby: country/language names and 2-letter-code pairs, in 85 languages, for country/language i18n

Postal code / zipcode validation for Rails, supporting 233 country codes

Convert country names and codes to a standard.

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).

Notifications for Ruby on Rails applications

The push notification service for Ruby.

webpush, Encryption Utilities for Web Push protocol

iOS, Android and Windows Phone Push Notifications made easy!!

Build reactive applications with the Rails tooling you already know and love.

Open Pusher implementation compatible with Pusher libraries

Use simple commands on the server to control client browsers in real-time

Build realtime Ruby web applications. Created by the fine folks at Poll Everywhere.

A next-generation progressive site generator & fullstack framework, powered by Ruby

A collection of awesome Jekyll goodies (tools, templates, plugins, guides, etc.)

Fast, simple, configurable photo portfolio website generator

Easily include static pages in your Rails app.

OctoLinker — Links together, what belongs together

the 5k pocket full-of-gags web microframework

minimalist framework for building rack applications

A minimalistic microframework built on top of Rack.

Simple router for web applications

The advanced business logic framework for Ruby.

Boot large Ruby/Rails apps faster

A streaming JSON parsing and encoding library for Ruby (C bindings to yajl)

Provides a C-optimized method for determining if a string is blank.

Quickly get a count estimation for large tables (>99% of accuracy for PostgreSQL).

A faster alternative to the custom use of `in_batches` with `pluck`

bcrypt-ruby is a Ruby binding for the OpenBSD bcrypt() password hashing algorithm, allowing you to easily store a secure hash of your users' passwords.

Easy to use cryptographic framework for data protection: secure messaging with forward secrecy and secure data storage. Has unified APIs across 14 platforms.

Ruby FFI binding to the Networking and Cryptography (NaCl) library (a.k.a. libsodium)

Sym is a command line utility and a Ruby API that makes it trivial to encrypt and decrypt sensitive data. Unlike many other existing encryption tools, sym focuses on usability and streamlined interface (CLI), with the goal of making encryption easy and transparent. The result? There is no excuse for keeping your application secrets unencrypted :)

A collection of links to Ruby Natural Language Processing (NLP) libraries, tools and software

Pragmatic Segmenter is a rule-based sentence boundary detection gem that works out-of-the-box across many languages.

A Ruby natural language processor.

Natural language processing framework for Ruby.

Collection of text algorithms. gem install text

Simple sentiment analysis with Ruby

A Ruby-based parsing DSL based on parsing expression grammars.

Ruby speech recognition with Pocketsphinx

A pure Ruby code highlighter that is compatible with Pygments

Fast and easy syntax highlighting for selected languages, written in Ruby.

💎 Ruby wrapper for Pygments syntax highlighter

xlsx generation with charts, images, automated column width, customizable styles and full schema validation. Axlsx excels at helping you generate beautiful Office Open XML Spreadsheet documents without having to understand the entire ECMA specification. Check out the README for some examples of how easy it is. Best of all, you can validate your xlsx file before serialization so you know for sure that anything generated is going to load on your client's machine.

Roo provides an interface to spreadsheets of several sorts.

Spreadsheet Architect is a library that allows you to create XLSX, ODS, or CSV spreadsheets super easily from ActiveRecord relations, plain Ruby objects, or tabular data.

Simple yet powerful ruby ffmpeg wrapper for reading metadata and transcoding movies

Get video info from Dailymotion, Vimeo, Wistia, and YouTube URLs.

Tools to transcode, inspect and convert videos.

Ruby on Rails CRM platform

A web application to manage complex group hierarchies with members, events and a lot more.

Ruby Optimized XML Parser

High-performance HTML5 parser for Ruby based on Lexbor, with support for both CSS selectors and XPath.

ROXML is a module for binding Ruby classes to XML. It supports custom mapping and bidirectional marshalling between Ruby and XML using annotation-style class methods, via Nokogiri or LibXML.

Object to XML mapping library, using Nokogiri (Fork from John Nunemaker's Happymapper)

HTML processing filters and utilities

ReCaptcha helpers for ruby apps

🍯 Unobtrusive and flexible spam protection for Rails apps

Easy Akismet and TypePad AntiSpam integration for Rails

Voight-Kampff is a Ruby gem that detects bots, spiders, crawlers and replicants

Text-based logic question captcha's for Rails 🚫🤖

A Ruby Library for dealing with money and currency conversion.

A library for converting various objects into `Money` objects.

A gem that calculates the exchange rate using published rates from European Central Bank. Compatible with the money gem

A simple Ruby on Rails plugin for creating and managing a breadcrumb navigation.

Flexible Ruby on Rails breadcrumbs plugin.

A ruby gem for creating navigations (with multiple levels) for your Rails, Sinatra or Padrino applications. Render your navigation as html list, link list or breadcrumbs.

Manages and displays breadcrumb trails in Rails app - lean & mean.

Ruby on Jets

Really simple rubygem hosting

A RubyGems.org cache and private gem server

Gem to automatically make a rubygems mirror.

A drop in replacement for geminabox written in Go

Ruby and Ruby on Rails bookmarks collection

Performances & exceptions monitoring for Ruby on Rails applications

Skylight agent for Ruby

ScoutAPM Ruby Agent. Supports Rails, Sinatra, Grape, Rack, and many other frameworks

Ruby Agent for Instrumental Application Monitoring

New Relic RPM Ruby Agent

🔥🔥🔥 Open source Reverse ETL - alternative to hightouch and census.

Expose libstemmer_c to Ruby

csvreader library / gem - read tabular data in the comma-separated values (csv) format the right way (uses best practices out-of-the-box with zero-configuration)

Stream JSON data based on various criteria (key, nesting level, etc).

Efficient and thread-safe code loader for Ruby

A Ruby library that encodes QR Codes

DSL Framework consisting of a DSL Engine and a Data-Binding Library used in Glimmer DSL for SWT (JRuby Desktop Development GUI Framework), Glimmer DSL for Opal (Pure Ruby Web GUI), Glimmer DSL for LibUI (Prerequisite-Free Ruby Desktop Development GUI Library), Glimmer DSL for Tk (Ruby Tk Desktop Development GUI Library), Glimmer DSL for GTK (Ruby-GNOME Desktop Development GUI Library), Glimmer DSL for XML (& HTML), and Glimmer DSL for CSS

A set of bindings for the GNOME libraries to use from Ruby.

An easy to install gem version of the Ruby bindings to Qt

FXRuby is an extension module for Ruby that provides an interface to the FOX GUI toolkit.

Re:VIEW is flexible document format/conversion system

a generic EPUB library for Ruby : supports EPUB 3

A Ruby implementation of an Event Store based on Active Record

Easy Diffing in Ruby

Find source repositories for ruby gems. Open, compare, and update outdated gem versions

Returns the difference between two JSON files.

A simple game engine built using raylib and mruby

🎨 The Ruby 2D gem

3D Graphics Library for Ruby.

A DSL for building fun, high-performance DNS servers.

PacketFu, a mid-level packet manipulation library for Ruby

Dnsruby is a feature-complete DNS(SEC) client for Ruby, as used by many of the world's largest DNS registries and the OpenDNSSEC project

Cross-platform Ruby library for managing child processes.

Ruby process spawning library

A unit handling library for ruby

Encapsulate measurements and their units in Ruby and Ruby on Rails.

blockchain (crypto) tools, libraries & scripts in ruby

A Ruby implementation of Bitcoin HD Wallets (Hierarchical Deterministic) BIP32

Ciri is an Ethereum implementation written in Ruby.

Open-source crypto currency exchange software

Rails 8 app template: Devise auth, Stripe billing, Tailwind CSS, admin panel, SEO helpers, etc

Don't reinvent the wheel for every new Rails project. Use sane Defaults.

A command line interface for smithing Ruby gems.

slideshow gems - write your slides / talks / presentations in plain text with markdown formatting conventions