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awesome-ruby

A collection of awesome Ruby libraries, tools, frameworks and software
https://github.com/eric-erki/awesome-ruby

Last synced: 3 days ago
JSON representation

  • Abstraction

    • ActiveInteraction - Manage application specific business logic.
    • Cells - View Components for Rails.
    • ActiveInteraction - Manage application specific business logic.
    • Apotomo - Based on Cells, Apotomo gives you widgets and encapsulation, bubbling events, AJAX page updates, rock-solid testing and more.
    • dry-rb - dry-rb is a collection of next-generation Ruby libraries, each intended to encapsulate a common task.
    • Surrounded - Encapsulated related objects in a single system to add behavior during runtime. Extensible implementation of DCI.
    • Decent Exposure - A helper for creating declarative interfaces in controllers.
    • Docile - A tiny library that lets you map a DSL (domain specific language) to your Ruby objects in a snap.
    • Interactor - Interactor provides a common interface for performing complex interactions in a single request.
    • Light Service - Series of Actions with an emphasis on simplicity.
    • Mutations - Compose your business logic into commands that sanitize and validate input.
    • Rails Event Store (RES) - A library for publishing, consuming, storing and retrieving events. It's your best companion for going with an event-driven architecture for your Rails application.
    • Trailblazer - Trailblazer is a thin layer on top of Rails. It gently enforces encapsulation, an intuitive code structure and gives you an object-oriented architecture.
    • Waterfall - A slice of functional programming to chain ruby services and blocks, thus providing a new approach to flow control.
    • wisper - A micro library providing Ruby objects with Publish-Subscribe capabilities.

  • Admin Interface

    • bhf - A simple to use Rails-Engine-Gem that offers an admin interface for trusted user.
    • RailsAdmin - A Rails engine that provides an easy-to-use interface for managing your data.
    • ActiveScaffold - ActiveScaffold provides quick and powerful user interfaces for CRUD (create, read, update, delete) operations for Rails applications. It's excellent for generating admin interfaces, managing Data-Heavy Applications, creating Widgets or for quick prototyping. ActiveScaffold is completly customizable and offers a bunch of additional features including searching, pagination, layout control and overrides of fields, forms and templates.
    • Administrate - A Rails engine that helps you put together a super-flexible admin dashboard, by Thoughtbot.
    • Trestle - A modern, responsive admin framework for Rails. Build a back-end in minutes that will grow with the needs of your application.

  • API Builder and Discovery

    • Her - an ORM that maps REST resources to Ruby objects. Designed to build applications that are powered by a RESTful API instead of a database.
    • Grape - An opinionated micro-framework for creating REST-like APIs in Ruby.
    • Version Cake - An unobtrusive way to version APIs in your Rails app.
    • versionist - A plugin for versioning Rails based RESTful APIs.
    • Fast JSON API - A lightning fast JSON:API serializer for Ruby Objects.
    • ActiveModel::Serializers - JSON serialization of objects.
    • Crepe - The thin API stack.
    • Her - an ORM that maps REST resources to Ruby objects. Designed to build applications that are powered by a RESTful API instead of a database.
    • jbuilder - Create JSON structures via a Builder-style DSL.
    • JSONAPI::Resources - JSONAPI::Resources, or "JR", provides a framework for developing a server that complies with the JSON API specification.
    • JSONAPI::Utils - JSONAPI::Utils is built on top of JSONAPI::Resources taking advantage of its resource-driven style and bringing an easy way to build modern JSON APIs with no or less learning curve.
    • Spyke - Interact with REST services in an ActiveRecord-like manner.
    • Blanket - A dead simple API wrapper.
    • Jsonite - A tiny, HAL-compliant JSON presenter for your APIs.
    • Pliny - Opinionated template Sinatra app for writing excellent APIs in Ruby.
    • rabl - General ruby templating with json, bson, xml, plist and msgpack support.
    • Rails::API - Rails for API only applications.
    • jsonapi-rb
    • Roar - Resource-Oriented Architectures in Ruby.

  • Authentication and OAuth

    • Monban - A very simple and extensible user authentication library for rails.
    • warden - General Rack Authentication Framework.
    • OAuth2 - A Ruby wrapper for the OAuth 2.0 protocol.
    • OmniAuth - A library that standardizes multi-provider authentication utilizing Rack middleware.
    • Rodauth - Authentication and account management framework for Rack applications.
    • Shield - Authentication protocol for use in your routing and model context.
    • Sorcery - Magical Authentication for Rails 4, and Rails 5.
    • Authlogic - Authlogic is a clean, simple, and unobtrusive ruby authentication solution.
    • Clearance - Small and simple email & password based authentication for Rails.
    • Devise - A flexible authentication solution for Rails based on Warden.
    • JWT - JSON Web Token implementation in Ruby.
    • Knock - Seamless JWT authentication for Rails API.
    • Monban - A very simple and extensible user authentication library for rails.
    • warden - General Rack Authentication Framework.
    • Doorkeeper - An OAuth2 provider for Rails.

  • Caching

    • Dalli - A high performance pure Ruby client for accessing memcached servers.
    • Action caching for Action Pack - Action caching for Action Pack.
    • Second Level Cache - Write-Through and Read-Through caching library for ActiveRecord 4.
    • redis-store - Redis Store provides a full set of stores (Cache, I18n, Session, HTTP Cache) for modern Ruby frameworks like: Ruby on Rails, Sinatra, Rack, Rack::Cache and I18n. It supports object marshalling, timeouts, single or multiple nodes, and namespaces.
    • Readthis - High performance, pooled, ActiveSupport compliant caching with Redis.
    • Record Cache - Cache Active Model Records in Rails 3.
    • Garner - A set of Rack middleware and cache helpers that implement various caching strategies.
    • Kashmir - Kashmir is a Ruby DSL that makes serializing and caching objects a snap.
    • redis-store - Redis Store provides a full set of stores (Cache, I18n, Session, HTTP Cache) for modern Ruby frameworks like: Ruby on Rails, Sinatra, Rack, Rack::Cache and I18n. It supports object marshalling, timeouts, single or multiple nodes, and namespaces.
    • IdentityCache - A blob level caching solution to plug into ActiveRecord.

  • CLI Builder

    • Thor - A toolkit for building powerful command-line interfaces.
    • TTY - Toolbox for developing CLI clients.
    • Optimist - A commandline option parser for Ruby that just gets out of your way.
    • Rake - A make-like build utility for Ruby.
    • Slop - Simple Lightweight Option Parsing.
    • Terrapin - A small command line library (Formerly Cocaine).
    • Clamp - A command-line application framework.
    • Commander - The complete solution for Ruby command-line executables.
    • GLI - Git-Like Interface Command Line Parser.
    • Hanami CLI - General purpose Command Line Interface (CLI) framework for Ruby.
    • Main - A class factory and DSL for generating command line programs real quick.
    • Thor - A toolkit for building powerful command-line interfaces.

  • CLI Utilities

    • Pastel - Terminal output styling with intuitive and clean API.
    • Awesome Print - Pretty print your Ruby objects with style -- in full color and with proper indentation
    • Betty - Friendly English-like interface for your command line. Don't remember a command? Ask Betty.
    • colorize - Extends String class or add a ColorizedString with methods to set text color, background color and text effects.
    • formatador - STDOUT text formatting.
    • Paint - Simple and fast way to set ANSI terminal colors.
    • colorls - Beautifies the `ls` command, with color and font-awesome icons.
    • Ru - Ruby in your shell.
    • Ruby/Progressbar - The most flexible text progress bar library for Ruby.
    • Tabulo - Ruby ASCII table generator. Produce highly readable terminal tables, even from large, unwieldy data sets and streams.
    • TablePrint - Slice your data from multiple DB tables into a single CLI view.
    • Terminal Table - Ruby ASCII Table Generator, simple and feature rich.
    • Tmuxinator - Create and manage complex tmux sessions easily.
    • Whirly - A simple, colorful and customizable terminal spinner library for Ruby.

  • Cloud

    • browse-everything - Multi-provider Rails engine providing access to files in cloud storage.
    • humidifier - Programmatically generate and manage AWS CloudFormation templates, stacks, and change sets.
    • AWS SDK for Ruby - The official AWS SDK for Ruby.
    • Fog - The Ruby cloud services library.

  • Code Formatting

    • Rubocop Rails - A RuboCop extension focused on enforcing Rails best practices and coding conventions.
    • Rubocop Rspec - Code style checking for RSpec files
    • Rubocop Performance - A RuboCop extension focused on code performance checks.
    • RuboCop - A static code analyzer, based on the community Ruby style guide.
    • prettier - A prettier plugin for the Ruby language.

  • Code Highlighting

    • pygments.rb - A Ruby wrapper for the Python pygments syntax highlighter.
    • CodeRay - Fast and easy syntax highlighting for selected languages.

  • Coding Style Guides

    • fast-ruby - Writing Fast Ruby. Collect Common Ruby idioms.
    • Best-Ruby - Ruby Tricks, Idiomatic Ruby, Refactoring & Best Practices.
    • fast-ruby - Writing Fast Ruby. Collect Common Ruby idioms.
    • Fundamental Ruby - Fundamental programming ruby with examples. Threads, design patterns, data structures, OOP SOLID principle, algorithms.
    • Rails style guide - Community-driven Rails best practices and style for Rails 3 and 4.
    • Ruby style guide - Community-driven Ruby coding style.

  • Configuration

    • Econfig - Flexible configuration for Rails applications.
    • Figaro - Simple, Heroku-friendly Rails app configuration using `ENV` and a single YAML file.
    • Chamber - Surprisingly customizable convention-based approach to managing your app's configuration.
    • Configatron - Simple and feature rich configuration system for Ruby apps.
    • dotenv - Loads environment variables from `.env`.
    • Envyable - The simplest YAML to ENV config loader.
    • Global - Provides accessor methods for your configuration data.
    • RailsConfig - Multi-environment yaml settings for Rails3.
    • Sail - A lightweight Rails engine that brings an admin panel for managing configuration settings on a live Rails app.
    • Configus - Helps you easily manage environment specific settings.
    • ENVied - ensure presence and type of your app's ENV-variables

  • Core Extensions

    • Finishing Moves - Small, focused, incredibly useful methods added to core Ruby classes. Includes the endlessly useful `nil_chain`.
    • Hashie - A collection of tools that extend Hashes and make them more useful.
    • Addressable - Addressable is a replacement for the URI implementation that is part of Ruby's standard library. It more closely conforms to RFC 3986, RFC 3987, and RFC 6570 (level 4), providing support for IRIs and URI templates.
    • Hamster - Efficient, immutable, and thread-safe collection classes for Ruby.
    • Hanami::Utils - Lightweight, non-monkey-patch class utilities for Hanami and Ruby app.
    • Ruby Facets - The premiere collection of general purpose method extensions and standard additions for Ruby.
    • ActiveAttr - What ActiveModel left out.
    • Virtus - Attributes on Steroids for Plain Old Ruby Objects.
    • AttrExtras - Takes some boilerplate out of Ruby with methods like attr_initialize.

  • Country Data

    • Carmen - A repository of geographic regions.
    • Countries - All sorts of useful information about every country packaged as pretty little country objects.
    • i18n_data - country/language names and 2-letter-code pairs, in 85 languages, for country/language i18n.
    • normalize_country - Convert country names and codes to a standard, includes a conversion program for XMLs, CSVs and DBs.
    • Phonelib - Ruby gem for phone validation and formatting using Google libphonenumber library data.
    • Phony - Fast international phone number (E164 standard) normalizing, splitting and formatting.
    • validates_zipcode - Postal code / zipcode validation for Rails, supporting 233 country codes.

  • Cryptocurrencies and Blockchains

    • Blockchain Lite - Build your own blockchains with crypto hashes; revolutionize the world with blockchains, blockchains, blockchains one block at a time.
    • Peatio - Most Advanced Cryptocurrency open-source assets exchange.

  • Date and Time Processing

    • business_time - Support for doing time math in business hours and days.
    • local_time - Rails Engine for cache-friendly, client-side local time.
    • montrose - a simple library for expressing, serializing, and enumerating recurring events in Ruby
    • time-lord - Adds extra functionality to the time class.
    • Chronic - A natural language date/time parser written in pure Ruby.
    • groupdate - The simplest way to group temporal data in ActiveRecord, arrays and hashes.
    • biz - Time calculations using business hours.
    • ByStar - Find ActiveRecord objects by year, month, fortnight, week and more!
    • timezone - Accurate current and historical timezones and transformations, with support for Geonames and Google latitude - longitude timezone lookups.
    • TZinfo - Provides daylight savings aware transformations between times in different timezones.
    • working_hours - A modern ruby gem allowing to do time calculation with working hours.
    • yymmdd - Tiny DSL for idiomatic date parsing and formatting.
    • time_diff - Calculates the difference between two time.
    • validates_timeliness - Date and time validation plugin for ActiveModel and Rails.
    • ice_cube - A date recurrence library which allows easy creation of recurrence rules and fast querying.

  • Documentation

    • GitHub Changelog Generator - Automatically generate change log from your tags, issues, labels and pull requests on GitHub.
    • Hanna - An RDoc formatter built with simplicity, beauty and ease of browsing in mind.
    • Asciidoctor - A fast, Ruby-based text processor & publishing toolchain for converting AsciiDoc to HTML5, DocBook, EPUB3, PDF & more.
    • Annotate - Add a comment documenting the current schema to the top or bottom of each of your ActiveRecord models.
    • Doctor - Doctor is a Documentation Server for all your docs in github.
    • Documentation - A Rails engine to provider the ability to add documentation to a Rails application.
    • GitHub Changelog Generator - Automatically generate change log from your tags, issues, labels and pull requests on GitHub.
    • grape-swagger - Add swagger compliant documentation to your Grape API.
    • Hologram - A markdown based documentation system for style guides. It parses comments in your CSS and helps you turn them into a beautiful style guide.
    • Apipie - Rails API documentation and display tool using Ruby syntax.
    • Gollum - A simple, Git-powered wiki with a sweet API and local frontend.
    • Hanna - An RDoc formatter built with simplicity, beauty and ease of browsing in mind.
    • RDoc - RDoc produces HTML and command-line documentation for Ruby projects.
    • rspec_api_documentation - Automatically generate API documentation from RSpec.
    • Inch - Inch is a documentation measurement and evalutation tool for Ruby code, based on YARD.

  • E-Commerce and Payments

    • credit_card_validations - A ruby gem for validating credit card numbers, generating valid numbers, Luhn checks.
    • Payola - Drop-in Rails engine for accepting payments with Stripe.
    • credit_card_validations - A ruby gem for validating credit card numbers, generating valid numbers, Luhn checks.
    • Payola - Drop-in Rails engine for accepting payments with Stripe.
    • SquareConnect - Square's SDK for payments and other Square APIs.
    • stripe-ruby - Stripe Ruby bindings.
    • Koudoku - Robust subscription support for Ruby on Rails apps using Stripe, including out-of-the-box pricing pages, payment pages, and subscription management.
    • Piggybak - Modular, Extensible open-source ecommerce solution for Ruby on Rails.
    • ROR Ecommerce - A Rails e-commerce platform.
    • Solidus - An open source, eCommerce application for high volume retailers.
    • Spree - Spree is a complete open source e-commerce solution for Ruby on Rails.
    • Active Merchant - A simple payment abstraction library extracted from Shopify.
    • Braintree - Braintree Ruby bindings.
    • Conekta - Conekta Ruby bindings.

  • Encryption

    • bcrypt-ruby - bcrypt-ruby is a Ruby binding for the OpenBSD bcrypt() password hashing algorithm.
    • Symmetric Encryption - Transparently encrypt ActiveRecord, Mongoid, and MongoMapper attributes. Encrypt passwords in configuration files. Encrypt entire files at rest.
    • Themis - crypto library for painless data security, providing symmetric and asymmetric encryption, secure sockets with forward secrecy, for mobile and server platforms.
    • bcrypt-ruby - bcrypt-ruby is a Ruby binding for the OpenBSD bcrypt() password hashing algorithm.
    • Sym - A time-saving symmetric encryption gem based on OpenSSL that uses 256bit (password-encrypted) keys. Read the key from STDIN, a file, ENV or, on a Mac: OS-X Keychain.

  • Form Builder

    • Rapidfire - Making dynamic surveys should be easy!
    • Rails Bootstrap Forms - Rails form builder that makes it super easy to create beautiful-looking forms with Twitter Bootstrap 3+.
    • Formtastic - A Rails form builder plugin with semantically rich and accessible markup.
    • Rapidfire - Making dynamic surveys should be easy!
    • Reform - Gives you a form object with validations and nested setup of models. It is completely framework-agnostic and doesn't care about your database.
    • Abracadabra - The gem that swaps out text with a fully-compliant Rails form in one click.
    • Cocoon - Dynamic nested forms using jQuery made easy; works with formtastic, simple_form or default forms.
    • Simple Form - Rails forms made easy.

  • Git Tools

    • Overcommit - A fully configurable and extendable Git hook manager.
    • git_reflow - An automated quality control workflow for Agile teams.
    • git-spelunk - Dig through git blame history.
    • git-up - Fetch and rebase all locally-tracked remote branches.
    • git-whence - Find which merge a commit came from.
    • git-auto-bisect - Find the commit that broke master.
    • Git Cop - Enforces consistent Git commits.
    • Rugged - Ruby bindings to libgit2.
    • ginatra - A web frontend for Git repositories.

  • GUI

    • Shoes - Shoes makes building little graphical programs for Mac, Windows, and Linux super simple.
    • RubyGnome2 - Ruby language bindings for the GNOME 2.0 development environment.
    • qtbindings - Allows the QT Gui toolkit to be used from Ruby.
    • Shoes - Shoes makes building little graphical programs for Mac, Windows, and Linux super simple.

  • HTML/XML Parsing

    • HappyMapper - Object to XML mapping library, using Nokogiri.
    • Nokogiri - An HTML, XML, SAX, and Reader parser with XPath and CSS selector support.
    • HappyMapper - Object to XML mapping library, using Nokogiri.
    • Oga - An XML/HTML parser written in Ruby. Oga does not require system libraries such as libxml, making it easier and faster to install on various platforms.
    • Ox - A fast XML parser and Object marshaller.
    • ROXML - Custom mapping and bidirectional marshalling between Ruby and XML using annotation-style class methods, via Nokogiri or LibXML.

  • Image Processing

    • ruby-vips - A binding for the libvips image processing library.
    • MiniMagick - A ruby wrapper for ImageMagick or GraphicsMagick command line.
    • PSD.rb - Parse Photoshop files in Ruby with ease.
    • RMagick - RMagick is an interface between Ruby and ImageMagick.
    • Skeptick - Skeptick is an all-purpose DSL for building and running ImageMagick commands.
    • Phasion - Ruby wrapper around pHash, the perceptual hash library for detecting duplicate multimedia files.

  • Internationalization

    • i18n - Ruby Internationalization and localization solution.
    • rails-i18n - Repository for collecting Locale data for Rails I18n as well as other interesting, Rails related I18n stuff.
    • Termit - Translations with speech synthesis in your terminal.
    • Globalize - Globalize builds on the I18n API in Ruby on Rails to add model translations to ActiveRecord models.
    • twitter-cldr-rb - Ruby implementation of the ICU (International Components for Unicode) that uses the Common Locale Data Repository to format dates, plurals, and more.
    • i18n-tasks - Manage missing and unused translations with the awesome power of static analysis.
    • FastGettext - Ruby internationalization tool with less memory, simple, clean namespace and threadsafe.
    • r18n - Advanced i18n library for Rails, Sinatra, desktop apps, models, works well with complex languages like Russian.
    • Tolk - A web interface for doing i18n translations packaged as a Rails engine.

  • IRB

    • rib - A lightweight and extensible IRB replacement.
    • Clipboard - Access to the system clipboard on Linux, MacOS and Windows.
    • Hirb - A mini view framework for console/irb that's easy to use, even while under its influence. Console goodies include a no-wrap table, auto-pager, tree and menu.
    • irbtools - Improvements for Ruby's IRB.
    • Looksee - A tool for illustrating the ancestry and method lookup path of objects. Handy for exploring unfamiliar codebases.
    • Pry - A powerful alternative to the standard IRB shell for Ruby.

  • Logging

    • Timber - Simple structured logging with context.
    • Semantic Logger - Scalable, next generation enterprise logging for Ruby.
    • Timber - Simple structured logging with context.
    • Cabin - Structured+contextual logging experiments in Ruby.
    • Fluentd - Fluentd collects events from various data sources and writes them to files, database or other types of storages.
    • HttpLog - Log outgoing HTTP requests.
    • Log4r - Log4r is a comprehensive and flexible logging library for use in Ruby programs.
    • Syslogger - A drop-in replacement for the standard Logger Ruby library, that logs to the syslog instead of a log file.
    • Yell - Your Extensible Logging Library.
    • Logging - A flexible logging library for use in Ruby programs based on the design of Java's log4j library.
    • Lograge - An attempt to tame Rails' default policy to log everything.
    • MongoDB Logger - MongoDB logger for Rails.
    • Scrolls - Simple logging.

  • Machine Learning

    • PredictionIO Ruby SDK - The PredictionIO Ruby SDK provides a convenient API to quickly record your users' behavior and retrieve personalized predictions for them.
    • AI4R - Algorithms covering several Artificial intelligence fields.
    • weka - Machine learning and data mining algorithms for JRuby.
    • Awesome Machine Learning with Ruby - A Curated List of Ruby Machine Learning Links and Resources.
    • rb-libsvm - Ruby language bindings for LIBSVM. SVM is a machine learning and classification algorithm.
    • ruby-fann - Ruby library for interfacing with FANN (Fast Artificial Neural Network).
    • rumale - A machine learninig library with interfaces similar to Scikit-Learn.

  • Mobile Development

    • RubyMotion - A revolutionary toolchain that lets you quickly develop and test full-fledged native iOS and OS X applications for iPhone, iPad, Mac and Android.
    • Ruboto - A platform for developing full stand-alone apps for Android using the Ruby language and libraries.
    • dryrun - Try any Android library on your smartphone directly from the command line.
    • fastlane - Connect all iOS deployment tools into one streamlined workflow.
    • Ruby Push Notifications - iOS, Android and Windows Phone Push notifications made easy.
    • Rpush - The push notification service for Ruby which supports Apple Push Notification Service, Google Cloud Messaging, Amazon Device Messaging and Windows Phone Push Notification Service.
    • RubyMotion - A revolutionary toolchain that lets you quickly develop and test full-fledged native iOS and OS X applications for iPhone, iPad, Mac and Android.
    • webpush - Encryption Utilities for Web Push protocol

  • Natural Language Processing

    • Parslet - A small Ruby library for constructing parsers in the PEG (Parsing Expression Grammar) fashion.
    • Awesome NLP with Ruby - Awesome List for Practical Natural Language Processing done in Ruby.
    • Parslet - A small Ruby library for constructing parsers in the PEG (Parsing Expression Grammar) fashion.
    • Treat - Treat is a toolkit for natural language processing and computational linguistics in Ruby.
    • pocketsphinx-ruby - Ruby speech recognition with Pocketsphinx.
    • Pragmatic Segmenter - Pragmatic Segmenter is a rule-based sentence boundary detection gem that works out-of-the-box across many languages.
    • Text - A collection of text algorithms including Levenshtein distance, Metaphone, Soundex 2, Porter stemming & White similarity.
    • Treetop - PEG (Parsing Expression Grammar) parser.
    • Words Counted - A highly customisable Ruby text analyser and word counter.
    • Ruby Natural Language Processing Resources - Collection of links to Ruby Natural Language Processing (NLP) libraries, tools and software.
    • Sentimental - Simple sentiment analysis with Ruby.

  • Navigation

    • loaf - Manages and displays breadcrumb trails in Rails app - lean & mean.
    • loaf - Manages and displays breadcrumb trails in Rails app - lean & mean.
    • Gretel - A Ruby on Rails plugin that makes it easy yet flexible to create breadcrumbs.
    • Simple Navigation - A ruby gem for creating navigation (html list, link list or breadcrumbs with multiple levels) for your Rails 2, 3 & 4, Sinatra or Padrino.
    • active_link_to - View helper to manage "active" state of a link.
    • Breadcrumbs on Rails - A simple Ruby on Rails plugin for creating and managing a breadcrumb navigation for a Rails project.

  • Networking

    • RubyDNS - A high-performance DNS server which can be easily integrated into other projects or used as a stand-alone daemon.
    • RubyDNS - A high-performance DNS server which can be easily integrated into other projects or used as a stand-alone daemon.
    • Dnsruby - A pure Ruby DNS client library which implements a stub resolver. It aims to comply with all DNS RFCs.

  • ORM/ODM

    • Neo4j.rb - A Neo4j OGM (Object-Graph-Mapper) for use in Ruby on Rails and Rack frameworks heavily inspired by ActiveRecord.
    • NoBrainer - A RethinkDB ORM for Ruby
    • Mongoid - An ODM (Object-Document-Mapper) framework for MongoDB in Ruby.
    • Ohm - Object-hash mapping library for Redis.
    • Perpetuity - Persistence gem for Ruby objects using the Data Mapper pattern.
    • Redis-Objects - Redis Objects provides a Rubyish interface to Redis, by mapping Redis data types to Ruby objects, via a thin layer over the redis gem.
    • ROM - Ruby Object Mapper (ROM) is an experimental Ruby library with the goal to provide powerful object mapping capabilities without limiting the full power of your datastore.
    • Sequel - Sequel is a simple, flexible, and powerful SQL database access toolkit for Ruby.
    • ActiveRecord - Object-relational mapping in Rails.
    • NoBrainer - A RethinkDB ORM for Ruby
    • MongoModel - Ruby ODM for interfacing with MongoDB databases.
    • Neo4j.rb - A Neo4j OGM (Object-Graph-Mapper) for use in Ruby on Rails and Rack frameworks heavily inspired by ActiveRecord.
    • DataMapper - ORM which works well with legacy databases. Last release (1.2.0) was on 13 October 2011.
    • Hanami::Model - A lean Repository-pattern based ORM framework for Hanami and modern Ruby applications.
    • MongoMapper - A Ruby Object Mapper for Mongo.

  • ORM/ODM Extensions

    • Espinita - Audit activerecord models like a boss.
    • mongoid-history - Multi-user non-linear history tracking, auditing, undo, redo for mongoid.
    • ranked-model - A modern row sorting library for ActiveRecord. It uses ARel aggressively and is better optimized than most other libraries.
    • Espinita - Audit activerecord models like a boss.
    • ActsAsList - Provides the capabilities for sorting and reordering a number of objects in a list.
    • ActsAsParanoid - ActiveRecord plugin allowing you to hide and restore records without actually deleting them.
    • ActiveRecord Import - a library for bulk inserting data using ActiveRecord.
    • bulk_insert - A little ActiveRecord extension for helping to insert lots of rows in a single insert statement.
    • data_miner - Download, pull out of a ZIP/TAR/GZ/BZ2 archive, parse, correct, and import XLS, ODS, XML, CSV, HTML, etc. into your ActiveRecord models.
    • ferry - A ruby gem for easy data transfer.
    • ActiveRecord::Turntable - A database sharding extension for ActiveRecord.
    • ActiveValidators - An exhaustive collection of off-the-shelf and tested ActiveModel/ActiveRecord validations.
    • DeepPluck - Allow you to pluck attributes from nested associations without loading a bunch of records.
    • Goldiloader - Automatic ActiveRecord eager loading.
    • Unread - Manage read/unread status of ActiveRecord objects - and it's fast.
    • Audited - Audited is an ORM extension for ActiveRecord & MongoMapper that logs all changes to your models.
    • Discard - A simple ActiveRecord mixin to add conventions for flagging records as discarded.
    • Logidze - Database changes log for Rails.
    • marginalia - Attach comments to your ActiveRecord queries. By default, it adds the application, controller, and action names as a comment at the end of each query.
    • PaperTrail - Track changes to your ActiveRecord models' data for auditing or versioning.
    • PermenantRecords - Soft-delete your ActiveRecord records, like an explicit version of ActsAsParanoid.
    • ActiveImporter - Define importers that load tabular data from spreadsheets or CSV files into any ActiveRecord-like ORM.
    • ActiveRecord Reputation System - An Active Record Reputation System for Rails.
    • ActsAsTaggableOn - A tagging plugin for ActiveRecord that allows for custom tagging along dynamic contexts.
    • Acts As Votable - Allow any ActiveRecord model to be voted on, like/dislike, upvote/downvote, etc.
    • Merit - Adds reputation behavior to Rails apps in the form of Badges, Points, and Rankings for ActiveRecord or Mongoid.
    • PublicActivity - Provides easy activity tracking for your ActiveRecord, Mongoid 3 and MongoMapper models in Rails 3 and 4. Similar to Github's Public Activity.
    • Simple Feed - Fast and highly scalable read-optimized social activity feed library in pure Ruby, backed by Redis.
    • ranked-model - A modern row sorting library for ActiveRecord. It uses ARel aggressively and is better optimized than most other libraries.
    • Destroyed At - Allows you to "destroy" an object without deleting the record or associated records.
    • mongoid-history - Multi-user non-linear history tracking, auditing, undo, redo for mongoid.
    • Enumerize - Enumerated attributes with I18n and ActiveRecord/Mongoid/MongoMapper support.
    • mini_record - ActiveRecord meets DataMapper, with MiniRecord you are be able to write schema inside your models.
    • ActsAsTree - Extends ActiveRecord to add simple support for organizing items into parent–children relationships.
    • Ancestry - Organise ActiveRecord model into a tree structure using a variation on the materialised path pattern.
    • Awesome Nested Set - Awesome Nested Set is an implementation of the nested set pattern for ActiveRecord models.
    • Closure Tree - Easily and efficiently make your ActiveRecord models support hierarchies using a Closure Table.
    • Acts As Tennant - Add multi-tenancy to a Rails app through a shared database strategy.
    • Apartment - Multi-tenancy for Rails and ActiveRecord.
    • Milia - Non-invasive multi-tenancy for Rails which supports Devise authentication out of the box.
    • Acts As Commentable - Provides a single Comment model that can be attached to any model(s) within your app.
    • Acts As Commentable with Threading - Similar to acts_as_commentable; however, utilizes awesome_nested_set to provide threaded comments.
    • acts_as_follower - Allow any ActiveRecord model to follow any other model.
    • Mongoid Tree - A tree structure for Mongoid documents using the materialized path pattern.

  • Package Management

    • Berkshelf - A Chef Cookbook manager.
    • Linuxbrew - A fork of Homebrew for Linux.
    • Traveling Ruby - Traveling Ruby lets you create self-contained Ruby app packages for Linux and OS X.
    • Linuxbrew - A fork of Homebrew for Linux.
    • CocoaPods - The Objective-C dependency manager.
    • Homebrew - The missing package manager for OS X.
    • fpm - Effing package management! Build packages for multiple platforms (deb, rpm, etc) with great ease and sanity.
    • Traveling Ruby - Traveling Ruby lets you create self-contained Ruby app packages for Linux and OS X.

  • Performance Monitoring

    • Instrumental - Measure your application in real time with [Instrumental](http://instrumentalapp.com).
    • New Relic - Find and fix Ruby errors with New Relic application monitoring and troubleshooting.
    • TraceView - Full-stack application tracing and brilliant data visualization to build faster, more reliable web apps.
    • Instrumental - Measure your application in real time with [Instrumental](http://instrumentalapp.com).
    • Scout - Scout Ruby Application Monitoring Agent.
    • Skylight - A smart profiler for your Rails apps that visualizes request performance.

  • Processes

    • childprocess - Cross-platform ruby library for managing child processes.
    • childprocess - Cross-platform ruby library for managing child processes.
    • posix-spawn - Fast Process::spawn for Rubys >= 1.8.7 based on the posix_spawn() system interfaces.

  • Profiler and Optimization

    • Rbkit - profiler for Ruby. With a GUI.
    • batch-loader
    • Derailed Benchmarks - A series of things you can use to benchmark any Rack based app.
    • benchmark-ips - Provides iteration per second benchmarking for Ruby.
    • bullet - Help to kill N+1 queries and unused eager loading.
    • Peek - Visual status bar showing Rails performance.
    • perftools.rb - gperftools (formerly known as google-perftools) for Ruby code.
    • rack-mini-profiler - Profiler for your development and production Ruby rack apps.
    • rbspy - Sampling profiler for any Ruby process.
    • ruby-prof - A code profiler for MRI rubies.

  • Scientific

    • daru - A library for storage, analysis, manipulation and visualization of data in pure Ruby.
    • PyCall - Calling Python functions from the Ruby language.
    • ruby-opencv - An OpenCV wrapper for Ruby.
    • classifier-reborn - An active fork of Classifier, and general module to allow Bayesian and other types of classifications.
    • stuff-classifier - A library for classifying text into multiple categories.
    • Daru::View - A library for easy and interactive plotting on Jupyter Notebooks and web applications.
    • IRuby - A Ruby kernel for Jupyter.
    • statsample - A suite for basic and advanced statistics on Ruby.
    • Rgl - A framework for graph data structures and algorithms.
    • NMatrix - Fast numerical linear algebra library for Ruby.
    • Numo::NArray - N-dimensional Numerical Array for Ruby.
    • mdarray - Multi dimensional array implemented for JRuby inspired by NumPy.
    • Red Data Tools - Data processing tools for Ruby.
    • SciRuby - Tools for scientific computation in Ruby/Rails.
    • statsample-timeseries - Bioruby Statsample TimeSeries.
    • statsample-glm - Generalized Linear Models extension for Statsample.
    • distribution - Statistical Distributions multi library wrapper.
    • primes-utils - A Rubygem which provides a suite of extremely fast utility methods for testing and generating primes.
    • Roots - A Rubygem which provides utilities to find all the nth roots of real and complex values.
    • smarter_csv - Ruby Gem for smarter importing of CSV Files as Array(s) of Hashes.
    • minimization - Minimization algorithms on pure Ruby.
    • rb-gsl - A ruby interface to GNU Scientific library, with NMatrix support.
    • BioRuby - Library for developing bioinformatics software.
    • bloomfilter-rb - BloomFilter(s) in Ruby: Native counting filter + Redis counting/non-counting filters.
    • decisiontree - A ruby library which implements ID3 (information gain) algorithm for decision tree learning.
    • algorithms - Library with documentation on when to use a particular structure/algorithm.
    • jaro_winkler - Ruby & C implementation of Jaro-Winkler distance algorithm which supports UTF-8 string.
    • Mongoid Search - Simple full text search implementation for Mongoid.
    • pg_search - Builds ActiveRecord named scopes that take advantage of PostgreSQL's full text search.
    • Mongoid Search - Simple full text search implementation for Mongoid.
    • ransack - Object-based searching.
    • Rroonga - The Ruby bindings of Groonga.
    • chewy - High-level Elasticsearch Ruby framework based on the official elasticsearch-ruby client.
    • elasticsearch-ruby - Ruby integrations for Elasticsearch.
    • elastics - Simple ElasticSearch client with support for migrations and ActiveRecord integration.
    • has_scope - Has scope allows you to easily create controller filters based on your resources named scopes.
    • scoped_search - Adds a scope supporting search queries and autocompletion against existing fields on ActiveRecord models and associations.
    • Searchkick - Searchkick learns what your users are looking for. As more people search, it gets smarter and the results get better. It’s friendly for developers - and magical for your users.
    • Searchlogic - Object based searching, common named scopes, and other useful named scope tools for ActiveRecord.
    • Sunspot - A Ruby library for expressive, powerful interaction with the Solr search engine.
    • textacular - Exposes full text search capabilities from PostgreSQL, and allows you to declare full text indexes. Textacular extends ActiveRecord with named_scope methods making searching easy and fun!
    • Thinking Sphinx - A library for connecting ActiveRecord to the Sphinx full-text search tool.
    • SearchCop - Extends your ActiveRecord models to support fulltext search engine like queries via simple query strings and hash-based queries.

  • Spreadsheets and Documents

    • Docsplit - Gem to convert Microsoft Word (and other) documents into images, pdf, pages or text.
    • Yomu - Read text and metadata from files and documents (.doc, .docx, .pages, .odt, .rtf, .pdf).
    • Yomu - Read text and metadata from files and documents (.doc, .docx, .pages, .odt, .rtf, .pdf).
    • AXLSX - An excel xlsx generation library.
    • Docsplit - Gem to convert Microsoft Word (and other) documents into images, pdf, pages or text.
    • Roo - Implements read access for all spreadsheet types and read/write access for Google spreadsheets.
    • Spreadsheet Architect - Turn any activerecord relation or ruby object collection into a XLSX, ODS, or CSV spreadsheet.

  • State Machines

    • FiniteMachine - A plain Ruby state machine with a straightforward and expressive syntax.
    • FiniteMachine - A plain Ruby state machine with a straightforward and expressive syntax.
    • AASM - State machines for Ruby classes (plain Ruby, Rails Active Record, Mongoid).
    • MicroMachine - A minimal finite state machine implementation in less than 50 lines of code.
    • simple_states - A super-slim statemachine-like support library.
    • Statesman - A statesmanlike state machine library.
    • state_machines - Adds support for creating state machines for attributes on any Ruby class.
    • transitions - A ruby state machine implementation.
    • Workflow - A finite-state-machine-inspired API for modeling and interacting with what we tend to refer to as 'workflow'.

  • Assets

    • Rails Assets - Bundler to Bower proxy.
    • Asset Sync - Synchronises Assets between Rails and S3.
    • Autoprefixer - Parse CSS and add vendor prefixes to rules by Can I Use.
    • Emoji - Exposes the Phantom Open Emoji library unicode/image assets and APIs for working with them.
    • Webpacker - Use Webpack to manage app-like JavaScript modules in Rails.
    • Less Rails - The dynamic stylesheet language for the Rails asset pipeline.
    • Less - Leaner CSS, in your browser or Ruby.
    • Sprockets - Rack-based asset packaging system.
    • Bourbon - A Lightweight Sass Tool Set.
    • bower-rails - Bower support for Rails projects.
    • Torba - Bower-less bundler for Sprockets.

  • CMS

    • Alchemy CMS - A powerful, userfriendly and flexible Open Source Rails CMS.
    • LocomotiveCMS - A simple but powerful CMS based on Liquid templates and Mongodb database.
    • Spina CMS - A beautiful CMS for Rails developers.
    • Alchemy CMS - A powerful, userfriendly and flexible Open Source Rails CMS.
    • Camaleon CMS - A dynamic and advanced content management system based on Ruby on Rails 4.
    • PushType - A next generation, open source content management system for Ruby on Rails.
    • Refinery CMS - An open source Ruby on Rails content management system for Rails 5.2+.
    • ComfortableMexicanSofa - Powerful Rails 5.2+ CMS Engine.
    • Fae - Flexible, open source, Rails CMS engine.
    • Radiant - A no-fluff, open source content management system designed for small teams.
    • Camaleon CMS - A dynamic and advanced content management system based on Ruby on Rails 4.
    • Publify - A self hosted Web publishing platform on Rails.
    • Storytime - Rails 4+ CMS and bloging engine, with a core focus on content.

  • Concurrency and Parallelism

    • Celluloid - Actor-based concurrent object framework for Ruby.
    • EventMachine - An event-driven I/O and lightweight concurrency library for Ruby.
    • forkoff - brain-dead simple parallel processing for ruby.
    • Parallel - Run any code in parallel Processes (> use all CPUs) or Threads (> speedup blocking operations).
    • Concurrent 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.

  • Data Visualization

    • Chartkick - Create beautiful Javascript charts with one line of Ruby. Works with Rails, Sinatra and most browsers (including IE 6).
    • Chartkick - Create beautiful Javascript charts with one line of Ruby. Works with Rails, Sinatra and most browsers (including IE 6).
    • LazyHighCharts - A simple and extremely flexible way to use HighCharts from ruby code. Tested on Ruby on Rails, Sinatra and Nanoc, but it should work with others too.
    • RailRoady - Ruby on Rails 3/4 model and controller UML class diagram generator.
    • Rails Erd - Generate Entity-Relationship Diagrams for Rails applications.
    • Ruby/GraphViz - Ruby interface to the GraphViz graphing tool.
    • GeoPattern - Create beautiful generative geometric background images from a string.

  • Database Drivers

    • ruby-pg - Ruby interface to PostgreSQL 8.3 and later.
    • Cassandra Driver - A pure ruby driver for Apache Cassandra with asynchronous io and configurable load balancing, reconnection and retry policies.
    • DataObjects - An attempt to rewrite existing Ruby database drivers to conform to one, standard interface.
    • mongo-ruby-driver - MongoDB Ruby driver.
    • mysql2 - A modern, simple and very fast Mysql library for Ruby (binding to libmysql).
    • Neography - A thin Ruby wrapper to the Neo4j Rest API.
    • Redic - Lightweight Redis Client.
    • redis-rb - A Ruby client that tries to match Redis' API one-to-one, while still providing an idiomatic interface.
    • SQLite3 - Ruby bindings for the SQLite3 embedded database.
    • SQL Server - The SQL Server adapter for ActiveRecord.
    • TinyTDS - FreeTDS bindings for Ruby using DB-Library.

  • DevOps Tools

    • Einhorn - Einhorn will open one or more shared sockets and run multiple copies of your process. You can seamlessly reload your code, dynamically reconfigure Einhorn, and more.
    • Puppet - An automated administrative engine for your Linux, Unix, and Windows systems, performs administrative tasks (such as adding users, installing packages, and updating server configurations) based on a centralized specification.
    • Request-log-analyzer - Create reports based on your log files. Supports Rails, Apache, MySQL, Delayed::Job, and other formats.
    • Backup - Provides an elegant DSL in Ruby for performing backups on UNIX-like systems.
    • Blender - A modular system orchestration framework with pluggable driver and host discovery.
    • BOSH - Cloud Foundry BOSH is an open source tool chain for release engineering, deployment and lifecycle management of large scale distributed services.
    • Centurion - A mass deployment tool for Docker fleets.
    • Chef - A systems integration framework, built to bring the benefits of configuration management to your entire infrastructure.
    • Deployinator - Deployinator is a deployment framework extracted from Etsy.
    • Itamae - Simple and lightweight configuration management tool inspired by Chef.
    • Kochiku - Kochiku is a distributed platform for test automation.
    • Lita - ChatOps for Ruby: A pluggable chat bot framework usable with any chat service.
    • Logstash - Logs/event transport, processing, management, search.
    • Mina - Really fast deployer and server automation tool.
    • Rubber - The rubber plugin enables relatively complex multi-instance deployments of RubyOnRails applications to Amazon's Elastic Compute Cloud (EC2).
    • SSHKey - SSH private and public key generator in pure Ruby (RSA & DSA).
    • Sunzi - Server provisioning utility for minimalists
    • Ruby-LXC - Native ruby binding for Linux containers.

  • Email

    • MailCatcher - Catches mail and serves it through a dream.
    • MailForm - Send e-mail straight from forms in Rails with I18n, validations, attachments and request information.
    • Markerb - Allows you to render multipart e-mails from a single template written in Markdown.
    • MidiSmtpServer - The highly customizable ruby SMTP-Service library with builtin support for AUTH and SSL/STARTTLS, 8BITMIME and SMTPUTF8, IPv4 and IPv6 and more.
    • Gibbon - API wrapper for the Mailchimp e-mail marketing platform.
    • Griddler - Simplify receiving email in Rails.
    • Incoming - Incoming! helps you receive email in your Rack apps.
    • Mail - A Really Ruby Mail Library.
    • Maily - A Rails Engine to manage, test and navigate through all your email templates of your app, being able to preview them directly in your browser.
    • premailer-rails - CSS styled emails without the hassle.
    • Postal - A fully featured open source mail delivery platform for incoming & outgoing e-mail.
    • Roadie - Roadie tries to make sending HTML emails a little less painful by inlining stylesheets and rewriting relative URLs for you inside your emails.
    • Sup - A curses threads-with-tags style email client.
    • LetterOpener - Preview mail in the browser instead of sending.
    • Mailman - An incoming mail processing microframework in Ruby.
    • Pony - The express way to send mail from Ruby.

  • HTTP Clients and tools

    • HTTPX - acknowledges the ease-of-use of the [http](https://github.com/httprb/http) gem API (itself inspired by python requests library) which aims at reusing the same facade, extending it for the use cases which the http gem doesn't support.
    • RESTClient - Simple HTTP and REST client for Ruby, inspired by microframework syntax for specifying actions.
    • Savon - Savon is a SOAP client for the Ruby programming language.
    • Sawyer - Secret user agent of HTTP, built on top of Faraday.
    • Typhoeus - Typhoeus wraps libcurl in order to make fast and reliable requests.
    • Patron - Patron is a Ruby HTTP client library based on libcurl.
    • HTTPX - acknowledges the ease-of-use of the [http](https://github.com/httprb/http) gem API (itself inspired by python requests library) which aims at reusing the same facade, extending it for the use cases which the http gem doesn't support.
    • Http Client - Gives something like the functionality of libwww-perl (LWP) in Ruby.
    • HTTP - The HTTP Gem: a simple Ruby DSL for making HTTP requests.
    • httparty - Makes http fun again!
    • Sniffer
    • excon - Usable, fast, simple Ruby HTTP 1.1. It works great as a general HTTP(s) client and is particularly well suited to usage in API clients.
    • Faraday - an HTTP client lib that provides a common interface over many adapters (such as Net::HTTP) and embraces the concept of Rack middleware when processing the request/response cycle.
    • Device Detector - A precise and fast user agent parser and device detector, backed by the largest and most up-to-date user agent database.
    • Http-2 - Pure Ruby implementation of HTTP/2 protocol

  • Queues and Messaging

    • Sidekiq - A full-featured background processing framework for Ruby. It aims to be simple to integrate with any modern Rails application and much higher performance than other existing solutions.
    • Backburner - Backburner is a beanstalkd-powered job queue that can handle a very high volume of jobs.
    • Shoryuken - A super efficient AWS SQS thread based message processor for Ruby.
    • Bunny - Bunny is a popular, easy to use, well-maintained Ruby client for RabbitMQ (3.3+).
    • Delayed::Job - Database backed asynchronous priority queue.
    • Gush - A parallel runner for complex workflows using only Redis and Sidekiq.
    • Karafka - Framework used to simplify Apache Kafka (a distributed streaming platform) based Ruby applications development.
    • March Hare - Idiomatic, fast and well-maintained JRuby client for RabbitMQ.
    • Resque - A Redis-backed Ruby library for creating background jobs.
    • Sneakers - A fast background processing framework for Ruby and RabbitMQ.
    • Sucker Punch - A single process background processing library using Celluloid. Aimed to be Sidekiq's little brother.

  • Static Site Generation

    • Nanoc - A static site generator, fit for building anything from a small personal blog to a large corporate web site.
    • webgen - webgen is a fast, powerful and extensible static website generator.
    • Octopress - Octopress is an obsessively designed toolkit for writing and deploying Jekyll blogs.
    • Photish - Generate a highly configurable static website from a photo collection.
    • High Voltage - Easily include static pages in your Rails app.
    • Awesome Jekyll - A collection of awesome Jekyll tools, plugins, themes, guides and much more.

  • Testing

    • Bacon - A small RSpec clone.
    • Test::Unit - Test::Unit is a xUnit family unit testing framework for Ruby.
    • Fabrication - A simple and powerful object generation library.
    • Selenium WebDriver - Ruby bindings for WebDriver.
    • Watir - Web application testing in Ruby.
    • Knapsack - Optimal test suite parallelisation across CI nodes for RSpec, Cucumber, Minitest, Spinach and Turnip.
    • minitest - minitest provides a complete suite of testing facilities supporting TDD, BDD, mocking, and benchmarking.
    • Machinist - Fixtures aren't fun. Machinist is.
    • WebMock - Library for stubbing and setting expectations on HTTP requests.
    • API Taster - A quick and easy way to visually test your Rails application's API.
    • Poltergeist - A PhantomJS driver for Capybara.
    • Zapata - Who has time to write tests? This is a revolutionary tool to make them write themselves.
    • RSpec - Behaviour Driven Development for Ruby.
    • Emoji-RSpec - Custom Emoji Formatters for RSpec.
    • Capybara - Acceptance test framework for web applications.
    • Cutest - Isolated tests in Ruby.
    • Mocha - Mocha is a mocking and stubbing library for Ruby.
    • Nyan Cat - Nyan Cat inspired RSpec formatter!
    • shoulda-matchers - Provides Test::Unit- and RSpec-compatible one-liners that test common Rails functionality. These tests would otherwise be much longer, more complex, and error-prone.
    • Fake Person - Uses some of the most popular given & surnames in the US & UK.
    • Forgery - Easy and customizable generation of forged data.
    • DuckRails - Tool for mocking API endpoints quickly & dynamically.
    • TestXml - TestXml is a small extension for testing XML/HTML.
    • RR - A test double framework that features a rich selection of double techniques and a terse syntax.
    • Spinach - Spinach is a high-level BDD framework that leverages the expressive Gherkin language (used by Cucumber) to help you define executable specifications of your application or library's acceptance criteria.
    • Spork - A DRb server for testing frameworks (RSpec / Cucumber currently).
    • factory_bot - A library for setting up Ruby objects as test data.
    • faker - A library for generating fake data such as names, addresses, and phone numbers.
    • ffaker - A faster Faker, generates dummy data, rewrite of faker.
    • Appraisal - Appraisal integrates with bundler and rake to test your library against different versions of dependencies.
    • Fuubar - The instafailing RSpec progress bar formatter.
    • Aruba - Testing command line applications with cucumber and rspec.
    • Howitzer - Ruby based framework for acceptance testing
    • Konacha - Test your Rails application's JavaScript with the mocha test framework and chai assertion library.
    • gitarro - Run, retrigger, handle all type and OS-independent tests against your GitHub Pull Requests.
    • mutant - Mutant is a mutation testing tool for Ruby.
    • Parallel Tests - Speedup Test::Unit + RSpec + Cucumber by running parallel on multiple CPUs (or cores).
    • power_assert - Power Assert for Ruby.
    • Ruby-JMeter - A Ruby based DSL for building JMeter test plans.
    • Spring - Preloads your rails environment in the background for faster testing and Rake tasks.
    • timecop - Provides "time travel" and "time freezing" capabilities, making it dead simple to test time-dependent code.
    • vcr - Record your test suite's HTTP interactions and replay them during future test runs for fast, deterministic, accurate tests.
    • Wraith - A responsive screenshot comparison tool.
    • ActiveMocker - Generate mocks from ActiveRecord models for unit tests that run fast because they don’t need to load Rails or a database.

  • View helpers

    • Bh - Bootstrap Helpers for Ruby.
    • render_async - Render partials to your views asynchronously and increase load performance of your pages.
    • gon - If you need to send some data to your js files and you don't want to do this with long way through views and parsing - use gon.
    • auto_html - Rails extension for transforming URLs to appropriate resource (image, link, YouTube, Vimeo video...).
    • Komponent - An opinionated way of organizing front-end code in Rails, based on components.
    • PluggableJs - Page-specific javascript for Rails applications with the ability of passing data from a controller.

  • Web Frameworks

    • Cuba - A microframework for web development.
    • Hanami - It aims to bring back Object Oriented Programming to web development, leveraging on a stable API, a minimal DSL, and plain objects.
    • Padrino - A full-stack ruby framework built upon Sinatra.
    • Scorched - Light-weight, inheritable and composable web framework, inspired by Sinatra.
    • Sinatra - Classy web-development dressed in a DSL.
    • Syro - Simple router for web applications.
    • Camping - A web microframework which consistently stays at less than 4kB of code.
    • Hobbit - A minimalistic microframework built on top of Rack.
    • Hyperstack - A Complete Isomorphic Ruby Framework using React and Opal.
    • Rack::App - Bare bone minimalistic framework for building rack apps.
    • Ramaze - A simple, light and modular open-source web application framework written in Ruby.
    • Roda - A routing tree web framework.
    • Pakyow - A framework for building modern web-apps in Ruby. It helps you build working software faster with a development process that remains friendly to both designers and developers.
    • Ramaze - A simple, light and modular open-source web application framework written in Ruby.
    • Volt - A Ruby web framework where your ruby code runs on both the server and the client.

  • Web Servers

    • Phusion Passenger - Fast and robust web server and application server.
    • Rack - A common Ruby web server interface. By itself, it's just a specification and utility library, but all Ruby web servers implement this interface.
    • Agoo - A high performance HTTP server for Ruby that includes GraphQL and WebSocket support.
    • Goliath - A non-blocking Ruby web server framework.
    • Iodine - An non-blocking HTTP and Websocket web server optimized for Linux/BDS/macOS and Ruby MRI.
    • Puma - A modern, concurrent web server for Ruby.
    • Reel - Celluloid::IO-powered web server.
    • Thin - Tiny, fast & funny HTTP server.
    • TorqueBox - A Ruby application server built on JBoss AS7 and JRuby.
    • Unicorn - Rack HTTP server for fast clients and Unix.

  • WebSocket

    • AnyCable
    • Faye - A set of tools for simple publish-subscribe messaging between web clients.
    • Dependabot - Automated dependency update pull requests.
    • The Ruby Bibliography - Research papers about Ruby.
    • The Ruby Toolbox - A comprehensive catalog of Ruby and Rails plug-ins, gems, tools and resources for Ruby developers with popularity ratings based on GitHub watchers and Gem downloads.
    • Vexor CI - A distributed cloud web-service for building and testing software, a continuous integration tool for private apps with pay-per-minute billing model.
    • Awesome Ruby @LibHunt - Your go-to Ruby Toolbox. The Awesome Ruby collection + ordering by popularity, additional metadata and comparisons.
    • Firehose - Build realtime Ruby web applications.
    • Slanger - Open Pusher implementation compatible with Pusher libraries.
    • SemaphoreCI - Hosted continuous integration and deployment service for open source and private projects.
    • SideCI - Automated Code Review with GitHub PR. - Monitoring Style Violations, Quality, Security, Dependencies.
    • Sqreen - Automated and Real-Time Security for Ruby Apps. Protect your app in 30 seconds.
    • RenderSync - Real-time Rails Partials.
    • Websocket-Rails - Creates a built in WebSocket server inside a Rails application with ease, and also support streaming HTTP.
    • CodeClimate - Quality & security analysis for Ruby on Rails and Javascript.
    • Hakiri - Ship Secure Ruby Apps.
    • GitHub Trending - Find what repositories the GitHub community is most excited about today.
    • Ruby Bookmarks - Ruby and Ruby on Rails bookmarks collection.
    • Ruby Land - A well maintained Ruby/Rails aggregator that contains news, opinions, tutorials, and more.
    • Ruby Rogues - Weekly panel discussion about programming, primarily in Ruby.
    • Ruby Weekly - A free, once–weekly e-mail round-up of Ruby news and articles.
    • HuBoard - Kanban board for GitHub issues.
    • Travis CI.org - A distributed build system for the open source community.
    • Inch CI - Documentation badges for Ruby projects.
    • OctoLinker - Navigate through projects on GitHub.com efficiently with the OctoLinker browser extension.

  • Authorization

    • Petergate - Easy to use and read action and content based authorizations.
    • ActionPolicy - Authorization framework for Ruby and Rails applications. Composable, extensible and performant.
    • Authority - ORM-neutral way to authorize actions in your Rails app.
    • CanCanCan - Continuation of CanCan, an authorization Gem for Ruby on Rails.
    • Declarative Authorization - An authorization Rails plugin using a declarative DSL for specifying authorization rules in one place.
    • acl9 - Acl9 is a role-based authorization system that provides a concise DSL for securing your Rails application.
    • AccessGranted - Multi-role and whitelist based authorization gem for Rails.
    • Pundit - Minimal authorization through OO design and pure Ruby classes.

  • Automation

    • Danger - Automate your team's conventions surrounding code review.
    • Huginn - Huginn is a system for building agents that perform automated tasks for you online.

  • Captchas and anti-spam

    • Rakismet - Easy Akismet and TypePad AntiSpam integration for Rails.
    • Invisible Captcha - Unobtrusive and flexible spam protection based on the honeypot strategy. It also provides a time-sensitive form submission.
    • reCAPTCHA - reCaptcha API helpers for ruby apps.
    • Voight-Kampff - A Ruby gem that detects bots, spiders, crawlers and replicants.

  • CRM

    • Fat Free CRM - An open source Ruby on Rails based customer relationship management platform.

  • Database Tools

    • Seedbank - Seedbank allows you to structure your Rails seed data instead of having it all dumped into one large file.
    • Seed dump - Rails 4 task to dump (parts) of your database to db/seeds.rb.
    • Standby - Read from standby databases for ActiveRecord (formerly Slavery).
    • Upsert - Upsert on MySQL, PostgreSQL, and SQLite3. Transparently creates functions (UDF) for MySQL and PostgreSQL; on SQLite3, uses INSERT OR IGNORE.
    • Database Consistency - An easy way to check that application constraints and database constraints are in sync.
    • Foreigner - Adds foreign key helpers to migrations and correctly dumps foreign keys to schema.rb.
    • connection_pool - Generic connection pooling for Ruby, that can be used with anything, e.g. Redis, Dalli, etc.
    • Database Cleaner - Database Cleaner is a set of strategies for cleaning your database in Ruby.
    • Large Hadron Migrator - Online MySQL schema migrations without locking the table.
    • Lol DBA - Scan your models and displays a list of columns that probably should be indexed.
    • Polo - Creates sample database snapshots to work with real world data in development.
    • PgHero - Postgres insights made easy.
    • Rein - Database constraints made easy for ActiveRecord.
    • SchemaPlus - SchemaPlus provides a collection of enhancements and extensions to ActiveRecord
    • SecondBase - Seamless second database integration for Rails. SecondBase provides support for Rails to manage dual databases by extending ActiveRecord tasks that create, migrate, and test your application.
    • Seed Fu - Advanced seed data handling for Rails.
    • Scenic - Versioned database views for Rails.
    • Rails DB - Database Viewer and SQL Query Runner.

  • Ebook

    • Gepub - A generic EPUB library for Ruby : supports EPUB 3.
    • Git Scribe - Basically the best way to write an ebook.
    • Mobi - A Ruby way to read MOBI format metadata.
    • Review - Re:VIEW is flexible document format/conversion system.
    • Bookshop - Bookshop is a an open-source agile book development and publishing framework for authors, editors.
    • Eeepub - EeePub is a Ruby ePub generator.

  • Environment Management

    • ruby-install - Installs Ruby, JRuby, Rubinius, MagLev or MRuby.
    • fry - Simple ruby version manager for fish.
    • gem_home - A tool for changing your $GEM_HOME.
    • rbenv - Use rbenv to pick a Ruby version for your application and guarantee that your development environment matches production.
    • ruby-build - Compile and install Ruby.
    • Tokaido - Ruby, Rails, SQLite and Redis encapsulated in a single drag-and-drop OS X app, designed to make installing a working RoR environment easy for beginners.
    • Uru - Uru is a lightweight, multi-platform command line tool that helps you use the multiple rubies on your 32/64-bit Linux, OS X, or Windows systems.
    • chruby - Change your current Ruby. No shims, no crazy options or features, ~90 LOC.

  • File Upload

    • CarrierWave - Classier solution for file uploads for Rails, Sinatra and other Ruby web frameworks.
    • rack-secure-upload - Upload files securely.
    • DragonFly - A Ruby gem for on-the-fly processing - suitable for image uploading in Rails, Sinatra and much more!.
    • PaperClip - Easy file attachment management for ActiveRecord. Deprecated as of May 14, 2018.
    • attache - Standalone image and file server to decouple your app from file management concerns.
    • Refile - A modern file upload library for Ruby applications, Refile is an attempt by CarrierWave's original author to fix the design mistakes and overengineering in CarrierWave.
    • Shrine - Toolkit for handling file uploads in Ruby.

  • Implementations/Compilers

    • JRuby - A Java implementation of the Ruby language.
    • Opal - Ruby to Javascript compiler.
    • Rubinius - An implementation of the Ruby programming language. Rubinius includes a bytecode virtual machine, Ruby syntax parser, bytecode compiler, generational garbage collector, just-in-time (JIT) native machine code compiler, and Ruby Core and Standard libraries.
    • TruffleRuby - A high performance implementation of the Ruby programming language. Built on the GraalVM by Oracle Labs.
    • MRuby - Lightweight Ruby. Can be linked and embedded in your application.

  • Music and Sound

    • Maestro - A Slack-Powered music bot for Spotify
    • play ► - Your company's dj.
    • Coltrane - A music theory library with a command-line interface.
    • Sonic Pi - A live coding synth for everyone originally designed to support computing and music lessons.

  • Optimizations

    • fast_blank - Provides a C-optimized method for determining if a string is blank.
    • bootsnap - Boot large Ruby/Rails apps faster.
    • yajl-ruby - A streaming JSON parsing and encoding library for Ruby (C bindings to yajl).

  • PDF

    • Pdfkit - HTML+CSS to PDF using wkhtmltopdf.
    • Prawn - Fast, Nimble PDF Writer for Ruby.
    • CombinePDF - A Pure ruby library to merge or stump PDF files, number pages and more.
    • HexaPDF - A Versatile PDF Creation and Manipulation Library For Ruby.
    • Gimli - Utility for converting markup files to pdf files.
    • Kitabu - A framework for creating e-books from Markdown/Textile text markup using Ruby.
    • RGhost - RGhost is a document creation and conversion API.
    • Shrimp - A phantomjs based pdf renderer.
    • Wicked Pdf - PDF generator (from HTML) plugin for Ruby on Rails.
    • Wisepdf - Wkhtmltopdf wrapper done right.
    • Squid - Squid · A Ruby library to plot charts in PDF files
    • InvoicePrinter - Super simple PDF invoicing in Ruby (built on top of Prawn).

  • Rails Application Generators

    • Raygun - Builds applications with the common customization stuff already done.
    • Rails Composer - The Rails generator on steroids for starter apps.
    • Suspenders - Suspenders is the base Rails application used at thoughtbot.
    • Hobo - The web app builder for Rails.
    • orats - Opinionated rails application templates.
    • Bootstrappers - Bootstrappers generates a base Rails app using Bootstrap template and other goodies.

  • RSS

    • Feed normalizer - Extensible Ruby wrapper for Atom and RSS parsers.
    • Simple rss - A simple, flexible, extensible, and liberal RSS and Atom reader.
    • feedparser - A feed parser and normalizer (Atom, RSS, JSON, etc) library.
    • Stringer - A self-hosted, anti-social RSS reader.
    • Feedjira - A feed fetching and parsing library.
    • Ratom - A fast, libxml based, Ruby Atom library.

  • Third-party APIs

    • Buffer - Buffer API Ruby Library
    • discordrb - An implementation of the Discord API.
    • fb_graph2 - A full-stack Facebook Graph API wrapper.
    • flickr - A Ruby interface to the Flickr API.
    • gitlab - Ruby wrapper and CLI for the GitLab API.
    • google-api-ads-ruby - Google Adwords Ruby client
    • gmail - A Rubyesque interface to Gmail, with all the tools you'll need.
    • hipchat-rb - HipChat HTTP API Wrapper in Ruby with Capistrano hooks.
    • facy - Command line power tool for facebook.
    • Restforce - A Ruby client for the Salesforce REST api.
    • instagram-ruby-gem - The official gem for the Instagram REST and Search APIs.
    • Dropbox - Ruby client for Dropbox API v2.
    • ruby-gmail - A Rubyesque interface to Gmail.
    • soundcloud-ruby - Official SoundCloud API Wrapper for Ruby.
    • t - A command-line power tool for Twitter.
    • terjira - A command-line power tool for Jira.
    • tweetstream - A simple library for consuming Twitter's Streaming API.
    • twilio-ruby - A module for using the Twilio REST API and generating valid TwiML.
    • twitter - A Ruby interface to the Twitter API.
    • wikipedia - Ruby client for the Wikipedia API.
    • Yt - An object-oriented Ruby client for YouTube API V3.
    • itunes_store_transporter - Ruby wrapper around Apple's iTMSTransporter program.
    • linkedin - Provides an easy-to-use wrapper for LinkedIn's REST APIs.
    • Pusher - Ruby server library for the Pusher API.
    • ruby-trello - Implementation of the Trello API for Ruby.
    • simple-slack-bot - You can easily make Slack Bot.
    • Slack Notifier - A simple wrapper for posting to Slack channels.
    • Slack ruby gem - A Ruby wrapper for the Slack API.
    • Octokit - Ruby toolkit for the GitHub API.
    • Octokit - Ruby toolkit for the GitHub API.

  • Robotics

    • Artoo - Next generation robotics framework with support for different platforms: Arduino, Leap Motion, Pebble, Raspberry Pi, etc.
    • Artoo - Next generation robotics framework with support for different platforms: Arduino, Leap Motion, Pebble, Raspberry Pi, etc.

  • Presentation Programs

    • Slide Show (S9) - Write your slides / talks / presentations in plain text with markdown formatting conventions and generate (static) web pages; template packs incl. deck.js, impress.js, reveal.js, shower, s6, s5 and more.

  • Process Management and Monitoring

    • Eye - Process monitoring tool. Inspired from Bluepill and God.
    • Foreman - Manage Procfile-based applications.
    • Bluepill - Simple process monitoring tool.
    • God - An easy to configure, easy to extend monitoring framework written in Ruby.
    • Health Monitor Rails - A mountable Rails plug-in to check health of services (Database, Cache, Sidekiq, Redis, e.t.c.) used by the Rails app.
    • Procodile - Run processes in the background (and foreground) on Mac & Linux from a Procfile.

  • QR

    • RQRCode - RQRCode is a library for creating and rendering QR codes into various formats.

  • Template Engine

    • Liquid - Safe, customer facing template language for flexible web apps.
    • Tilt - Generic interface to multiple Ruby template engines.
    • Haml - HTML Abstraction Markup Language.
    • Mustache - Logic-less Ruby templates.
    • Slim - A template language whose goal is reduce the syntax to the essential parts without becoming cryptic.
    • Curly - A template language that completely separates structure and logic.

  • Web Crawling

    • Wombat - Web scraper with an elegant DSL that parses structured data from web pages.
    • anemone - Ruby library and CLI for crawling websites.
    • LinkThumbnailer - Ruby gem that generates thumbnail images and videos from a given URL. Much like popular social website with link preview.
    • Spidr - 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.
    • Mechanize - Mechanize is a ruby library that makes automated web interaction easy.
    • MetaInspector - Ruby gem for web scraping purposes.
    • Upton - A batteries-included framework for easy web-scraping.

  • Feature Flippers and A/B Testing

    • Motorhead - A Rails Engine framework that helps safe and rapid feature prototyping.
    • Split - Rack Based AB testing framework.
    • flipper - Feature flipping for ANYTHING. Make turning features on/off so easy that everyone does it. Whatever your data store, throughput, or experience.
    • Rollout - Feature flippers.
    • Vanity - an A/B testing framework for Rails that is datastore agnostic.

  • Markdown Processors

    • Maruku - A pure-Ruby Markdown-superset interpreter.
    • Redcarpet - A fast, safe and extensible Markdown to (X)HTML parser.
    • word-to-markdown - Gem to convert Microsoft Word documents to Markdown.
    • kramdown - Kramdown is yet-another-markdown-parser but fast, pure Ruby, using a strict syntax definition and supporting several common extensions.

  • Measurements

    • Ruby Units - Provides classes and methods to perform unit math and conversions.
    • Measured - Wrapper objects which encapsulate measurements and their associated units in Ruby.

  • Error Handling

    • Raven Ruby - Raven is a Ruby client for Sentry.
    • Airbrake - The official Airbrake library for Ruby on Rails (and other Rack based frameworks).
    • Better Errors - Better error page for Rack apps.
    • Bugsnag - Error monitoring for Rails, Sinatra, Rack, and plain Ruby apps.
    • Errbit - The open source, self-hosted error catcher.
    • Exception Handler - Custom error pages.
    • Exception Notification - A set of notifiers for sending notifications when errors occur in a Rack/Rails application.
    • Honeybadger - Exception, uptime, and performance monitoring for Ruby.
    • Nesty - Nested exceptions for Ruby.

  • File System Listener

    • Guard - A command line tool to easily handle events on file system modifications.
    • Listen - The Listen gem listens to file modifications and notifies you about the changes.
    • Rerun - Restarts an app when the filesystem changes. Uses growl and FSEventStream if on OS X.
    • Guard::LiveReload - Automatically reload your browser when 'view' files are modified.

  • GraphQL

  • Pagination

    • will_paginate - A pagination library that integrates with Ruby on Rails, Sinatra, Merb, DataMapper and Sequel.
    • Kaminari - A Scope & Engine based, clean, powerful, customizable and sophisticated paginator for modern web app frameworks and ORMs.
    • order_query - A keyset pagination library to find the next or previous record(s) relative to the current one efficiently, e.g. for infinite scroll.
    • Pagy - Pagy is the ultimate pagination gem that outperforms the others in each and every benchmark and comparison. More details can be found on [Pagy Wiki](https://ddnexus.github.io/pagy/index).

  • Serverless

    • Jets - A Ruby Serverless Framework to create and deploy serverless microservices with ease, and to seamlessly glue AWS services.
    • FaaStRuby - Serverless Software Development Platform for Ruby and Crystal developers.

  • Analytics

    • Staccato - Track analytics into the official Google Analytics Collection API.
    • Rack::Tracker - Rack middleware that can be hooked up to multiple services and exposing them in a unified fashion.
    • Impressionist - Rails Plugin that tracks impressions and page views.
    • Ahoy - A solid foundation to track visits and events in Ruby, JavaScript, and native apps.
    • Analytical - Gem for managing multiple analytics services in your rails app.
    • Gabba - Simple way to send server-side notifications to Google Analytics.
    • Legato - Model analytics reports and queries against the official Google Analytics Reporting API.

  • Debugging Tools

    • Pry Byebug - Pry navigation commands via byebug.
    • Seeing Is Believing - Displays the results of every line of code in your file.
    • Rails Footnotes - Rails footnotes displays footnotes in your application for easy debugging, such as sessions, request parameters, cookies, filter chain, routes, queries, etc.
    • Xray - A development tool that reveals your UI's bones.
    • Byebug - A simple to use, feature rich debugger for Ruby 2.
    • pry-rails - Avoid repeating yourself, use pry-rails instead of copying the initializer to every rails project. This is a small gem which causes rails console to open pry. It therefore depends on pry.

  • Money

    • eu_central_bank - A gem that calculates the exchange rate using published rates from European Central Bank.
    • Monetize - A library for converting various objects into Money objects.
    • Money - A Ruby Library for dealing with money and currency conversion.

  • Scheduling

    • minicron - A system to manage and monitor cron jobs.
    • resque-scheduler - A light-weight job scheduling system built on top of Resque.
    • rufus-scheduler - Job scheduler for Ruby (at, cron, in and every jobs).
    • Sidekiq-Cron - A scheduling add-on for Sidekiq.
    • Whenever - A Ruby gem that provides a clear syntax for writing and deploying cron jobs.

  • Security

    • Rack::Attack - Rack middleware for blocking & throttling abusive requests.
    • Rack::Protection - Rack middleware for protecting against typical Web attacks.
    • SecureHeaders - Automatically apply several headers that are related to security, including: Content Security Policy (CSP), HTTP Strict Transport Security (HSTS), X-Frame-Options (XFO), X-XSS-Protection, X-Content-Type-Options, X-Download-Options & X-Permitted-Cross-Domain-Policies.
    • bundler-audit - Patch-level security verification for Bundler.
    • Metasploit - World's most used penetration testing software.

  • SEO

    • FriendlyId - The "Swiss Army bulldozer" of slugging and permalink plugins for Active Record.
    • MetaTags - A gem to make your Rails application SEO-friendly.
    • prerender_rails - Rails middleware gem for prerendering javascript-rendered pages on the fly for SEO.
    • SitemapGenerator - A framework-agnostic XML Sitemap generator written in Ruby.

  • Video

    • Streamio FFMPEG - Simple yet powerful wrapper around the ffmpeg command for reading metadata and transcoding movies.
    • Video Transcoding - Tools to transcode, inspect and convert videos.

  • Decorators

    • Draper - Draper adds an object-oriented layer of presentation logic to your Rails application.
    • ShowFor - Quickly show a model information with I18n features. Like form_for for displaying model data.

  • Diff

    • gemdiff - Find source repositories for gems. Open, compare, and update outdated gem versions.
    • Diffy - Easy Diffing With Ruby.
    • JsonCompare - Returns the difference between two JSON files.

  • Dashboards

    • Smashing - Smashing is a Sinatra based framework that lets you build beautiful dashboards. This project is the maintained spiritual successor to the Dashing framework.
    • Dashing-Rails - The exceptionally handsome dashboard framework for Rails.
    • Blazer - Simple data viewer using only SQL. Output to table, chart, and maps.

  • Code Analysis and Metrics

    • Barkeep - Barkeep is a fast, fun way to review code. Engineering organizations can use it to keep the bar high.
    • Brakeman - A static analysis security vulnerability scanner for Ruby on Rails applications.
    • Cane - Code quality threshold checking as part of your build.
    • Coverband - Rack middleware to help measure production code coverage.
    • Fasterer - Make your Rubies go faster with this command line tool highly inspired by fast-ruby and Sferik's talk at Baruco Conf.
    • Flay - 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. Making this totally rad.
    • MetricFu - A fist full of code metrics.
    • Reek - Code smell detector for Ruby.
    • Rubycritic - A Ruby code quality reporter.
    • Flog - Flog reports the most tortured code in an easy to read pain report. The higher the score, the more pain the code is in.
    • fukuzatsu - Complexity analysis tool with a rich web front-end.
    • Pippi - A utility for finding suboptimal Ruby class API usage, focused on runtime analysis.
    • Pronto - Quick automated code review of your changes.
    • rails_best_practices - A code metric tool for rails projects.
    • Scientist - A Ruby library for carefully refactoring critical paths.
    • SimpleCov - Code coverage for Ruby 1.9+ with a powerful configuration library and automatic merging of coverage across test suites.
    • Sorbet - A static type checker for Ruby.
    • Suture - A Ruby gem that helps you refactor your legacy code.
    • Traceroute - A Rake task gem that helps you find the dead routes and actions for your Rails 3+ app

  • Game Development

    • Yeah - Practical Ruby video game framework.

  • Gem Generators

    • Gemsmith - A command line interface for smithing new Ruby gems.

  • Geolocation

    • Geocoder - A complete geocoding solution for Ruby. With Rails it adds geocoding (by street or IP address), reverse geocoding (find street address based on given coordinates), and distance queries.
    • geoip - Searches a GeoIP database for a given host or IP address, and returns information about the country where the IP address is allocated, and the city, ISP and other information.
    • Geokit - Geokit gem provides geocoding and distance/heading calculations.
    • Google Maps for Rails - Enables easy Google map + overlays creation in Ruby apps.
    • rgeo - Geospatial data library. Spatial data types, geometric and spherical calculations, and WKT/WKB serialization.

  • Social Networking

    • Decidim - free open-source participatory democracy for cities and organizations
    • diaspora* - A privacy aware, distributed, open source social network.
    • Discourse - A platform for community discussion. Free, open, simple.
    • Mailboxer - A private message system for Rails applications.
    • Mastodon - A GNU Social-compatible microblogging server.
    • Social Shares - A gem to check how many times url was shared in social networks.
    • Thredded - Rails 4.2+ forums/messageboards engine. Its goal is to be as simple and feature rich as possible.

  • Code Loaders

    • Zeitwerk - An efficient and thread-safe Ruby code loader.
Programming Languages
Ruby 655 C 20 JavaScript 8 Shell 6 C++ 5 HTML 3 Jupyter Notebook 1 go 1 SCSS 1 XSLT 1
Categories
Testing 44 ORM/ODM Extensions 44 Third-party APIs 30 Scientific 27 WebSocket 25 Code Analysis and Metrics 19 API Builder and Discovery 19 Database Tools 18 DevOps Tools 18 Email 16 Search 16 HTTP Clients and tools 15 Web Frameworks 15 Date and Time Processing 15 ORM/ODM 15 Abstraction 15 Documentation 15 Authentication and OAuth 15 CLI Utilities 14 E-Commerce and Payments 14 CMS 13 Logging 13 PDF 12 CLI Builder 12 Natural Language Processing 11 Configuration 11 Assets 11 Queues and Messaging 11 Database Drivers 11 Caching 10 Web Servers 10 Profiler and Optimization 10 Core Extensions 9 Git Tools 9 Internationalization 9 State Machines 9 Error Handling 9 Form Builder 8 Authorization 8 Package Management 8 Environment Management 8 Mobile Development 8 Web Crawling 7 Spreadsheets and Documents 7 Analytics 7 Country Data 7 File Upload 7 Social Networking 7 Machine Learning 7 Data Visualization 7 Performance Monitoring 6 Process Management and Monitoring 6 Navigation 6 Coding Style Guides 6 View helpers 6 HTML/XML Parsing 6 Static Site Generation 6 Debugging Tools 6 Template Engine 6 RSS 6 IRB 6 Ebook 6 Rails Application Generators 6 Image Processing 6 Scheduling 5 Feature Flippers and A/B Testing 5 Code Formatting 5 Implementations/Compilers 5 Encryption 5 Geolocation 5 Admin Interface 5 Concurrency and Parallelism 5 Security 5 Cloud 4 Captchas and anti-spam 4 GraphQL 4 SEO 4 GUI 4 Pagination 4 Markdown Processors 4 Music and Sound 4 File System Listener 4 Money 3 Optimizations 3 Diff 3 Processes 3 Networking 3 Dashboards 3 Robotics 2 Code Highlighting 2 Video 2 Cryptocurrencies and Blockchains 2 Serverless 2 Decorators 2 Automation 2 Measurements 2 QR 1 Gem Generators 1 Presentation Programs 1 CRM 1 Game Development 1 Code Loaders 1
Sub Categories
Keywords
ruby 245 rails 86 activerecord 26 ruby-on-rails 16 gem 13 api 11 http 10 rack 9 ruby-gem 9 sinatra 9 rubygems 8 rubyml 8 database 8 testing 7 redis 7 terminal 7 machine-learning 7 authorization 6 rspec 6 automation 6 jruby 6 static-analysis 6 postgresql 5 elasticsearch 5 orm 5 sql 5 security 5 graphql 5 logging 5 markdown 5 server 4 rubygem 4 dsl 4 state-machine 4 pdf 4 background-jobs 4 events 4 rubynlp 4 authentication 4 postgres 4 ios 4 javascript 4 performance 4 search 4 scheduler 4 monitoring 4 cli 4 admin-dashboard 3 graphql-ruby 3 rest 3