Awesome Ruby

The official Ruby SDK for the Anthropic API, for building applications with Claude.

Library for building LLM-powered applications in Ruby.

The official Ruby SDK for the OpenAI API.

OpenAI API + Ruby!

The official Ruby SDK for the Model Context Protocol (MCP), for building MCP servers and clients.

A delightful Ruby way to work with AI, providing one unified interface to OpenAI, Anthropic, Gemini, and other LLM providers.

MCP server for better agentic Rails development, runtime-level tools for your agent to talk to your running app.

JSON serialization of objects.

Easy And Fun, in creating XML/JSON responses in Rails 3,4,5 and 6.

A JSON serializer for Ruby, JRuby and TruffleRuby.

A dead simple API wrapper.

Simple, Fast, and Declarative Serialization Library for Ruby.

Speedy Rails JSON serialization with built-in caching.

The thin API stack.

Define structured data models with a DSL that generates JSON Schema and ActiveModel validations from a single source of truth.

An opinionated micro-framework for creating REST-like APIs in Ruby.

an ORM that maps REST resources to Ruby objects. Designed to build applications that are powered by a RESTful API instead of a database.

Create JSON structures via a Builder-style DSL.

Efficient and convenient JSON API (de)serialization library.

A fast JSON:API serializer for Ruby Objects.

JSONAPI::Resources, or "JR", provides a framework for developing a server that complies with the JSON API specification.

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.

A tiny, HAL-compliant JSON presenter for your APIs.

Opinionated template Sinatra app for writing excellent APIs in Ruby.

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

Resource-Oriented Architectures in Ruby.

Interact with REST services in an ActiveRecord-like manner.

An unobtrusive way to version APIs in your Rails app.

A Ruby on Rails framework for creating elegant backends for website administration.

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.

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

Avo is the modern approach to building an advanced admin panel that can be used by the entire organization. It has all the tools an admin panel needs and more. We have carefully made sure that you have all the escape hatches you need to ensure you can build your next admin panel for Ruby on Rails incredibly fast and easily.

A simple to use Rails-Engine-Gem that offers an admin interface for trusted user.

Hot Glue takes a different approach to building both admin and user dashboards. It is a code generation tool like the Rails scaffold generator but with significantly more features. Instead of providing a lot of configuration options, Hot Glue can generate your code. Good for lists & CRUD views for both admin and user-facing dashboards.

A robust Admin Interface for Ruby on Rails apps

A low-code Admin panel and Business Intelligence Rails engine. No DSL - configurable from the UI.

A Rails engine that provides an easy-to-use interface for managing your data.

A modern, responsive admin framework for Rails. Build a back-end in minutes that will grow with the needs of your application.

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

A solid foundation to track visits and events in Ruby, JavaScript, and native apps.

Rails Plugin that tracks impressions and page views.

Model analytics reports and queries against the official Google Analytics Reporting API.

Rack middleware that can be hooked up to multiple services and exposing them in a unified fashion.

Track analytics into the official Google Analytics Collection API.

Synchronises Assets between Rails and S3.

Parse CSS and add vendor prefixes to rules by Can I Use.

bundles Bun, the all-in-one JavaScript runtime, package manager, and build tool, directly into your Ruby gem bundle.

Exposes the Phantom Open Emoji library unicode/image assets and APIs for working with them.

The dynamic stylesheet language for the Rails asset pipeline.

Bundler to Bower proxy.

Sass makes CSS fun again.

Use Webpack to manage app-like JavaScript modules in Rails. (Official and actively maintained successor to rails/webpacker)

Rack-based asset packaging system.

Bower-less bundler for Sprockets.

Use Vite.js as a modern assets pipeline in Ruby and Rails apps.

JWT authentication solution for Rails APIs.

An authentication system generator for Rails applications.

Authlogic is a clean, simple, and unobtrusive ruby authentication solution.

Small and simple email & password based authentication for Rails.

A flexible authentication solution for Rails based on Warden.

An OAuth2 provider for Rails.

JSON Web Token implementation in Ruby.

A very simple and extensible user authentication library for rails (formerly Monban).

A Ruby wrapper for the OAuth 2.0 protocol.

A library that standardizes multi-provider authentication utilizing Rack middleware.

Authentication and account management framework for Rack applications.

A rodauth OAuth and OpenID provider plugin.

A stripped-down, bare-bones authentication library for Rails.

General Rack Authentication Framework.

Multi-role and whitelist based authorization gem for Rails.

Acl9 is a role-based authorization system that provides a concise DSL for securing your Rails application.

Authorization framework for Ruby and Rails applications. Composable, extensible and performant.

Continuation of CanCan, an authorization Gem for Ruby on Rails.

A scope-based authorization solution for Ruby on Rails.

Easy to use and read action and content based authorizations.

Minimal authorization through OO design and pure Ruby classes.

Simple role-based authorization for Rails with multi-tenancy support.

An intelligent process and workflow automation platform based on software agents.

Automate your team's conventions surrounding code review.

Huginn is a system for building agents that perform automated tasks for you online.

Ruby bindings for Neovim to make your own neovim editor plugins in Ruby.

A framework and Ruby DSL for progressive system automation.

The Ruby on Rails SaaS template to save you months of development time.

Delightful UI components for your Rails app that use Tailwind CSS & Stimulus controllers.

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

Rails application template to build Rails applications faster.

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

A Ruby on Rails plugin that makes it easy yet flexible to create breadcrumbs.

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

A ruby gem for creating navigation (html list, link list or breadcrumbs with multiple levels) for your Rails 2, 3 & 4, Sinatra or Padrino.

Manage application specific business logic.

A parser and evaluator for mathematical and logical formulas, safely evaluating user-supplied expressions at runtime.

Interactor provides a common interface for performing complex interactions in a single request.

Series of Actions with an emphasis on simplicity.

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

A set of tools for building reliable service objects of any complexity.

Encapsulated related objects in a single system to add behavior during runtime. Extensible implementation of DCI.

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

A micro library providing Ruby objects with Publish-Subscribe capabilities.

A command-line application framework.

An advanced command line parser supporting nested commands.

The complete solution for Ruby command-line executables.

General purpose Command Line Interface (CLI) framework for Ruby.

Git-Like Interface Command Line Parser.

A class factory and DSL for generating command line programs real quick.

A commandline option parser for Ruby that just gets out of your way.

A make-like build utility for Ruby.

Build command line applications per project with ease. Rake-inspired, Docopt inside.

Simple Lightweight Option Parsing.

A small command line library (Formerly Cocaine).

A toolkit for building powerful command-line interfaces.

Toolbox for developing CLI clients.

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

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

Extends String class or add a ColorizedString with methods to set text color, background color and text effects.

Beautifies the ls command, with color and font-awesome icons.

STDOUT text formatting.

Simple and fast way to set ANSI terminal colors.

Terminal output styling with intuitive and clean API.

Ruby in your shell.

The most flexible text progress bar library for Ruby.

Slice your data from multiple DB tables into a single CLI view.

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

Ruby ASCII Table Generator, simple and feature rich.

Create and manage complex tmux sessions easily.

A simple, colorful and customizable terminal spinner library for Ruby.

A powerful, userfriendly and flexible Open Source Rails CMS.

Avo is a very custom Content Management System for Ruby on Rails that saves engineers and teams months of development time. It's designed to use your app's database structure, uses configuration instead of traditional methods, and when configuration isn't enough, it falls back to writing regular Rails code that you're used to.

A dynamic and advanced content management system based on Ruby on Rails 4.

Powerful Rails 5.2+ CMS Engine.

Flexible, open source, Rails CMS engine.

A simple but powerful CMS based on Liquid templates and Mongodb database.

An open source page builder with an sleek UI.

A self hosted Web publishing platform on Rails.

A no-fluff, open source content management system designed for small teams.

An open source Ruby on Rails content management system for Rails 5.2+.

Manage content files in Rails with the same features you'd expect from static site generators like Jekyll, Middleman, and Bridgetown.

A beautiful CMS for Rails developers.

Rails 4+ CMS and blogging engine, with a core focus on content.

An open source Ruby on Rails based customer relationship management platform.

An open source Ruby on Rails based community management solution.

Action caching for Action Pack.

A high performance pure Ruby client for accessing memcached servers.

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

A blob level caching solution to plug into ActiveRecord.

Cache Active Model Records in Rails 3.

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.

Write-Through and Read-Through caching library for ActiveRecord 4.

Protection for Rails models with text-based logic question captchas (from Rob Tuley's textcaptcha.com)

Unobtrusive and flexible spam protection based on the honeypot strategy. It also provides a time-sensitive form submission.

Easy Akismet and TypePad AntiSpam integration for Rails.

reCaptcha API helpers for ruby apps.

A Ruby gem that detects bots, spiders, crawlers and replicants.

The official AWS SDK for Ruby.

Multi-provider Rails engine providing access to files in cloud storage.

The Ruby cloud services library.

Programmatically generate and manage AWS CloudFormation templates, stacks, and change sets.

A static analysis security vulnerability scanner for Ruby on Rails applications.

Rack middleware to help measure production code coverage.

Make your Rubies go faster with this command line tool highly inspired by fast-ruby and Sferik's talk at Baruco Conf.

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.

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

Complexity analysis tool with a rich web front-end.

A fist full of code metrics.

A utility for finding suboptimal Ruby class API usage, focused on runtime analysis.

Quick automated code review of your changes.

A code metric tool for rails projects.

Code smell detector for Ruby.

A Ruby code quality reporter.

A high-performance static analysis suite for Ruby, built in Rust with Ruby APIs.

A Ruby library for carefully refactoring critical paths.

Code coverage for Ruby 1.9+ with a powerful configuration library and automatic merging of coverage across test suites.

A Ruby gem that helps you refactor your legacy code.

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

A dependentless SQL and SQL errors formatting and colorizing. ActiveRecord seemless integration.

A prettier plugin for the Ruby language.

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

A RuboCop extension focused on code performance checks.

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

Code style checking for RSpec files

Ruby Style Guide, with linter & automatic code fixer

Fast and easy syntax highlighting for selected languages.

A Ruby wrapper for the Python pygments syntax highlighter.

A pure Ruby code highlighter that is compatible with Pygments.

An efficient and thread-safe Ruby code loader.

Ruby Tricks, Idiomatic Ruby, Refactoring & Best Practices.

Writing Fast Ruby. Collect Common Ruby idioms.

Fundamental programming ruby with examples. Threads, design patterns, data structures, OOP SOLID principle, algorithms.

Community-driven Rails best practices and style for Rails 3 and 4.

Better Specs { rspec guidelines with ruby }.

Community-driven Ruby coding style.

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

An event-driven I/O and lightweight concurrency library for Ruby.

brain-dead simple parallel processing for ruby.

Run any code in parallel Processes (> use all CPUs) or Threads (> speedup blocking operations). Best suited for map-reduce or e.g. parallel downloads/uploads.

Fine-grained concurrency for Ruby.

Configuration library for Ruby gems and applications, supporting multiple sources (yml, secrets) and environments.

Surprisingly customizable convention-based approach to managing your app's configuration.

Simple and feature rich configuration system for Ruby apps.

Helps you easily manage environment specific settings.

Loads environment variables from .env.

Flexible configuration for Rails applications.

ensure presence and type of your app's ENV-variables

The simplest YAML to ENV config loader.

Simple, Heroku-friendly Rails app configuration using ENV and a single YAML file.

Provides accessor methods for your configuration data.

Multi-environment yaml settings for Rails3.

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

What ActiveModel left out.

A collection of utility classes and standard library extensions.

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.

Takes some boilerplate out of Ruby with methods like attrinitialize.

Fast, memory efficient bitwise operations on large binary strings

A tiny library that lets you map a DSL (domain specific language) to your Ruby objects in a snap.

dry-rb is a collection of next-generation Ruby libraries, each intended to encapsulate a common task.

Small, focused, incredibly useful methods added to core Ruby classes. Includes the endlessly useful nilchain.

Efficient, immutable, and thread-safe collection classes for Ruby.

Lightweight, non-monkey-patch class utilities for Hanami and Ruby app.

A collection of tools that extend Hashes and make them more useful.

Memoize any instance/class/module method, including support for frozen objects - rigorously tested and benchmarked on all Rubies - fast performance of memoized reads.

The premiere collection of general purpose method extensions and standard additions for Ruby.

Generate strings supplying a simple pattern.

Assorted Ruby classes and methods to simplify and enhance your code.

Attributes on Steroids for Plain Old Ruby Objects.

A repository of geographic regions.

All sorts of useful information about every country packaged as pretty little country objects.

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

Convert country names and codes to a standard, includes a conversion program for XMLs, CSVs and DBs.

Ruby gem for phone validation and formatting using Google libphonenumber library data.

Fast international phone number (E164 standard) normalizing, splitting and formatting.

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

Build your own blockchains with crypto hashes; revolutionize the world with blockchains, blockchains, blockchains one block at a time.

Ruby implementation of Ethereum.

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

Most Advanced Cryptocurrency open-source assets exchange.

Simple data viewer using only SQL. Output to table, chart, and maps.

The exceptionally handsome dashboard framework for Rails.

Smashing is a Sinatra based framework that lets you build beautiful dashboards. This project is the maintained spiritual successor to the Dashing framework.

A gem for creating workflows that "enhance" entities with extra attributes. At a high level, attr-gather provides a process to fetch information from many data sources (such as third party APIs, legacy databases, etc.) in a fully parallelized fashion.

A modern tabular data (line-by-line records) reader supports "classic" CSV but also CSV Numerics, CSV <3 JSON, CSV <3 YAML, tab, space or fixed width fields (FWF) and many more flavors and dialects.

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

A lightweight data processing / ETL framework for Ruby.

The open-source reverse ETL, data activation platform developed using Ruby and Ruby on Rails.

It Provides Snowball algorithm for stemming purposes.

Fast Ingestion of CSV files into hashes with automatic header handling, type conversion, clean-up, and protection against Ruby CSV's silent data corruption. Also exports CSV.

Awesome charts for your ruby app. Works on any ruby app, including Rails app. It even works on plain HTML+ERB files.

Create beautiful Javascript charts with one line of Ruby.

Create beautiful generative geometric background images from a string.

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.

Ruby on Rails 3/4 model and controller UML class diagram generator.

Generate Entity-Relationship Diagrams for Rails applications.

Ruby interface to the GraphViz graphing tool.

A pure ruby driver for Apache Cassandra with asynchronous io and configurable load balancing, reconnection and retry policies.

MongoDB Ruby driver.

A modern, simple and very fast Mysql library for Ruby (binding to libmysql).

A thin Ruby wrapper to the Neo4j Rest API.

Lightweight Redis Client.

A Ruby client that tries to match Redis' API one-to-one, while still providing an idiomatic interface.

Ruby interface to PostgreSQL 8.3 and later.

The SQL Server adapter for ActiveRecord.

Ruby bindings for the SQLite3 embedded database.

FreeTDS bindings for Ruby using DB-Library.

A performance-oriented C library for MySQL-compatible databases.

Generic connection pooling for Ruby, that can be used with anything, e.g. Redis, Dalli, etc.

Database Cleaner is a set of strategies for cleaning your database in Ruby.

An easy way to check that application constraints and database constraints are in sync.

Online MySQL schema migrations without locking the table.

Scan your models and displays a list of columns that probably should be indexed.

Catch unsafe PostgreSQL migrations in development and run them easier in production.

Postgres insights made easy.

Creates sample database snapshots to work with real world data in development.

Database Viewer and SQL Query Runner.

Database constraints made easy for ActiveRecord.

Versioned database views for Rails.

SchemaPlus provides a collection of enhancements and extensions to ActiveRecord

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.

Rails 4 task to dump (parts) of your database to db/seeds.rb.

Advanced seed data handling for Rails.

Seedbank allows you to structure your Rails seed data instead of having it all dumped into one large file.

Read from standby databases for ActiveRecord (formerly Slavery).

Catch unsafe migrations in development.

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

Time calculations using business hours.

Support for doing time math in business hours and days.

Find ActiveRecord objects by year, month, fortnight, week and more!

A natural language date/time parser written in pure Ruby.

The simple tool to make work with date ranges in Ruby more enjoyable.

The simplest way to group temporal data in ActiveRecord, arrays and hashes.

A collection of Ruby methods to deal with statutory and other holidays.

A date recurrence library which allows easy creation of recurrence rules and fast querying.

A Ruby library to compute distance of dates in words, with localization support, alternative styles, CLI and Jekyll support.

Rails Engine for cache-friendly, client-side local time.

a simple library for expressing, serializing, and enumerating recurring events in Ruby.

Format dates and times based on human-friendly examples, not arcane strftime directives.

Calculates the difference between two time.

Accurate current and historical timezones and transformations, with support for Geonames and Google latitude - longitude timezone lookups.

Provides daylight savings aware transformations between times in different timezones.

Date and time validation plugin for ActiveModel and Rails.

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

Tiny DSL for idiomatic date parsing and formatting.

A simple to use, feature rich debugger for Ruby 2.

Adds class, method & attribute suggestions to error messages.

Pry navigation commands via byebug.

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.

Displays the results of every line of code in your file.

A Ruby tracing tool for following method calls, line execution, and object allocations via TracePoint.

A development tool that reveals your UI's bones.

A helper for creating declarative interfaces in controllers.

Draper adds an object-oriented layer of presentation logic to your Rails application.

A set of Rails responders to dry up your application.

Quickly show a model information with I18n features. Like formfor for displaying model data.

Provides an elegant DSL in Ruby for performing backups on UNIX-like systems.

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

A remote server automation and deployment tool written in Ruby.

A systems integration framework, built to bring the benefits of configuration management to your entire infrastructure.

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.

Simple and lightweight configuration management tool inspired by Chef.

Kamal offers zero-downtime deploys, rolling restarts, asset bridging, remote builds, accessory service management, and everything else you need to deploy and manage your web app in production with Docker.

Manage remote infrastructure in Ruby

ChatOps for Ruby: A pluggable chat bot framework usable with any chat service.

Logs/event transport, processing, management, search.

Really fast deployer and server automation tool.

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.

The rubber plugin enables relatively complex multi-instance deployments of RubyOnRails applications to Amazon's Elastic Compute Cloud (EC2).

Native ruby binding for Linux containers.

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

Server provisioning utility for minimalists

Create and configure lightweight, reproducible, and portable development environments.

The official Ruby debugger with Debug Adapter Protocol (DAP) support.

A Ruby language server offering fuzzy search-based definitions, references, and completions.

An opinionated language server for Ruby with support for pull diagnostics, formatting, and more.

VS Code extension providing a rich Ruby development experience powered by Ruby LSP.

A Ruby LSP addon for Rails that provides route, model, and association support.

A Ruby LSP addon that provides enhanced RSpec support, including code lens for running and debugging tests.

A Ruby language server providing IntelliSense, code completion, and inline documentation.

VS Code extension for the debug gem with DAP support.

VS Code extension for RuboCop with autocorrection and lint support.

VS Code extension for StandardRB.

Easy Diffing With Ruby.

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

Returns the difference between two JSON files.

Your go-to Ruby Toolbox. The Awesome Ruby collection + ordering by popularity, additional metadata and comparisons.

Find what repositories the GitHub community is most excited about today.

Ruby and Ruby on Rails bookmarks collection.

A well maintained Ruby/Rails aggregator that contains news, opinions, tutorials, and more.

Weekly panel discussion about programming, primarily in Ruby.

A free, once–weekly e-mail round-up of Ruby news and articles.

Community driven news.

Ruby Programming Community Link Blog.

Research papers about Ruby.

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.

Adds database schema annotations for your ActiveRecord models as text comments as well as routes. An active and maintained hard fork of Annotate.

Rails API documentation and display tool using Ruby syntax.

A fast, Ruby-based text processor & publishing toolchain for converting AsciiDoc to HTML5, DocBook, EPUB3, PDF & more.

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

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

A simple, Git-powered wiki with a sweet API and local frontend.

Add swagger compliant documentation to your Grape API.

An RDoc formatter built with simplicity, beauty and ease of browsing in mind.

A markdown based documentation system for style guides. It parses comments in your CSS and helps you turn them into a beautiful style guide.

Inch is a documentation measurement and evalutation tool for Ruby code, based on YARD.

RDoc produces HTML and command-line documentation for Ruby projects.

Automatically generate API documentation from RSpec.

YARD enables the user to generate consistent, usable documentation that can be exported to a number of formats very easily.

A simple payment abstraction library extracted from Shopify.

Braintree Ruby bindings.

Conekta Ruby bindings.

A ruby gem for validating credit card numbers, generating valid numbers, Luhn checks.

A payments engine for Rails, supporting Stripe, Braintree, Paddle, and Lemon Squeezy.

PayPal's official Ruby SDK for the PayPal Server APIs (Orders and Payments).

A Rails e-commerce platform.

An open source, eCommerce application for high volume retailers.

Spree is a complete open source e-commerce solution for Ruby on Rails.

Stripe Ruby bindings.

An extensible, high-performance eCommerce platform depended on by some of the world's top retailers.

Bookshop is a an open-source agile book development and publishing framework for authors, editors.

A generic EPUB library for Ruby : supports EPUB 3.

A Ruby way to read MOBI format metadata.

Re:VIEW is flexible document format/conversion system.

Analytics and tracking for e-mails.

API wrapper for the Mailchimp e-mail marketing platform.

Preview mail in the browser instead of sending.

A Really Ruby Mail Library.

Catches mail and serves it through a dream.

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

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.

The highly customizable ruby SMTP-Service library with builtin support for AUTH and SSL/STARTTLS, 8BITMIME and SMTPUTF8, IPv4 and IPv6 and more.

The express way to send mail from Ruby.

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

CSS styled emails without the hassle.

Roadie tries to make sending HTML emails a little less painful by inlining stylesheets and rewriting relative URLs for you inside your emails.

A curses threads-with-tags style email client.

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

bcrypt-ruby is a Ruby binding for the OpenBSD bcrypt() password hashing algorithm.

Ruby binding to the Networking and Cryptography (NaCl) library.

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.

Transparently encrypt ActiveRecord, Mongoid, and MongoMapper attributes. Encrypt passwords in configuration files. Encrypt entire files at rest.

crypto library for painless data security, providing symmetric and asymmetric encryption, secure sockets with forward secrecy, for mobile and server platforms.

Change your current Ruby. No shims, no crazy options or features, ~90 LOC.

Simple ruby version manager for fish.

A tool for changing your $GEMHOME.

Use rbenv to pick a Ruby version for your application and guarantee that your development environment matches production.

Compile and install Ruby.

Installs Ruby, JRuby, Rubinius, MagLev or MRuby.

A fast Ruby version and toolchain manager written in Rust.

RVM is a command-line tool which allows you to easily install, manage, and work with multiple ruby environments from interpreters to sets of gems.

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 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.

The official Airbrake library for Ruby on Rails (and other Rack based frameworks).

Better error page for Rack apps.

Error monitoring for Rails, Sinatra, Rack, and plain Ruby apps.

The open source, self-hosted error catcher.

Custom error pages.

A set of notifiers for sending notifications when errors occur in a Rack/Rails application.

Nested exceptions for Ruby.

Easy and powerful exception and error tracking for your applications.

The Ruby client for Sentry.

Pub/sub, event sourcing, and evented autonomous services backed by the Message DB message store.

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.

Feature flipping for ANYTHING. Make turning features on/off so easy that everyone does it. Whatever your data store, throughput, or experience.

A Rails Engine framework that helps safe and rapid feature prototyping.

Feature flippers.

Rack Based AB testing framework.

Ruby client for Unleash, a powerful feature toggle system that gives you a great overview over all feature toggles across all your applications and services.

A command line tool to easily handle events on file system modifications.

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 simple CLI to watch file changes and run their matching Ruby specs. Works on any ruby projects with no setup.

Standalone image and file server to decouple your app from file management concerns.

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!.

Upload files securely.

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.

Toolkit for handling file uploads in Ruby.

Rails form builder that makes it super easy to create beautiful-looking forms with Twitter Bootstrap 3+.

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

Rails form builder that makes it easy to create forms with Bootstrap 4 markup

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

Making dynamic surveys should be easy!

Gives you a form object with validations and nested setup of models. It is completely framework-agnostic and doesn't care about your database.

Rails forms made easy.

A Ruby library that provides an interface to the FOX GUI toolkit.

Ruby DSL for SWT

Allows the QT Gui toolkit to be used from Ruby.

Ruby language bindings for the GNOME development environment.

Shoes makes building little graphical programs for Mac, Windows, and Linux super simple.

DragonRuby is a zero dependency, cross platform, Ruby runtime built on top of mRuby, libSDL, and LLVM. Write Ruby on any OS and deploy to PC, Mac, Linux, iOS, Android, Raspberry Pi, WASM, Nintendo Switch, Sony Playstation, and Microsoft Xbox.

A 2D game development library for the Ruby and C++ programming languages.

Mittsu makes 3D graphics easier by providing an abstraction over OpenGL, and is based heavily off of THREE.js.

Create cross-platform 2D applications, games, and visualizations with ease.

Taylor is a game engine built using mruby and raylib.

A command line interface for smithing new Ruby gems.

Hoe is a Rake/RubyGems helper for project Rakefiles.

Really simple rubygem hosting.

A drop in replacement for geminabox written in Go.

Gem to automatically make a rubygems mirror.

A RubyGems.org cache and private gem server.

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.

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 gem provides geocoding and distance/heading calculations.

Enables easy Google map + overlays creation in Ruby apps.

A Ruby SDK allows user to query for an enriched data set based on IP address and provides WHOIS lookup api that helps users to obtain domain information.

Geospatial data library. Spatial data types, geometric and spherical calculations, and WKT/WKB serialization.

A web frontend for Git repositories.

Analyzes Git commits for consistent quality.

Find the commit that broke master.

Dig through git blame history.

Find which merge a commit came from.

Peruse and delete git branches ergonomically.

An automated quality control workflow for Agile teams.

A fully configurable and extendable Git hook manager.

Ruby bindings to libgit2.

A query batching executor.

A library for declaring, composing and executing GraphQL queries.

A simple field-level authorization.

Ruby implementation of GraphQL.

Object to XML mapping library, using Nokogiri.

HTML processing filters and utilities.

An HTML, XML, SAX, and Reader parser with XPath and CSS selector support.

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

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.

A fast XML parser and Object marshaller.

Custom mapping and bidirectional marshalling between Ruby and XML using annotation-style class methods, via Nokogiri or LibXML.

A tiny library for parsing the Accept-Language header from browsers (as defined in RFC 2616).

A precise and fast user agent parser and device detector, backed by the largest and most up-to-date user agent database.

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.

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.

The HTTP Gem: a simple Ruby DSL for making HTTP requests.

Gives something like the functionality of libwww-perl (LWP) in Ruby.

Pure Ruby implementation of HTTP/2 protocol

Makes http fun again!

Pure ruby HTTP client, supports HTTP/2 and HTTP/1, concurrent requests, plugin system for extended features (cookies, retries, following redirects, proxy, streaming...).

Patron is a Ruby HTTP client library based on libcurl.

Cross-Origin Resource Sharing (CORS) middleware for Rack applications.

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

Savon is a SOAP client for the Ruby programming language.

Secret user agent of HTTP, built on top of Faraday.

Tool to log and debug outgoing HTTP requests across multiple ruby libraries.

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

Access to the system clipboard on Linux, MacOS and Windows.

Improvements for Ruby's IRB.

IRB with Kata(型 Type) completion.

A tool for illustrating the ancestry and method lookup path of objects. Handy for exploring unfamiliar codebases.

A powerful alternative to the standard IRB shell for Ruby.

A lightweight and extensible IRB replacement.

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

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

A ruby wrapper for ImageMagick or GraphicsMagick command line.

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

Parse Photoshop files in Ruby with ease.

RMagick is an interface between Ruby and ImageMagick.

A binding for the libvips image processing library.

Skeptick is an all-purpose DSL for building and running ImageMagick commands.

A Java implementation of the Ruby language.

Lightweight Ruby. Can be linked and embedded in your application.

Natalie is a Ruby compiler that provides an ahead-of-time compiler using C++ and gcc/clang as the backend.

Ruby to Javascript compiler.

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.

A high performance implementation of the Ruby programming language. Built on the GraalVM by Oracle Labs.

Ruby internationalization tool with less memory, simple, clean namespace and threadsafe.

Globalize builds on the I18n API in Ruby on Rails to add model translations to ActiveRecord models.

Ruby Internationalization and localization solution.

Manage missing and unused translations with the awesome power of static analysis.

Minimalistic, flexible and fast Internationalization library. It supports localization, interpolations, pluralization, fallbacks, nested keys and more.

Advanced i18n library for Rails, Sinatra, desktop apps, models, works well with complex languages like Russian.

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

Web interface to manage i18n translations helping to facilitate the editors of your translations.

Translations with speech synthesis in your terminal.

A web interface for doing i18n translations packaged as a Rails engine.

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

Fluentd collects events from various data sources and writes them to files, database or other types of storages.

Log outgoing HTTP requests.

Log4r is a comprehensive and flexible logging library for use in Ruby programs.

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

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

A structured logging system that is capable of handling a message, structured data, or an exception easily. It has JSON and human-readable formatters.

Simple logging.

Scalable, next generation enterprise logging for Ruby.

A drop-in replacement for the standard Logger Ruby library, that logs to the syslog instead of a log file.

Your Extensible Logging Library.

Algorithms covering several Artificial intelligence fields.

A Curated List of Ruby Machine Learning Links and Resources.

A CLI tool to transpile trained classic ML models into a native Ruby code with zero dependencies.

Ruby language bindings for LIBSVM. SVM is a machine learning and classification algorithm.

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

A machine learning library with interfaces similar to Scikit-Learn.

The end-to-end machine learning platform for Ruby.

Deep learning for Ruby, powered by LibTorch.

Machine learning and data mining algorithms for JRuby.

Kramdown is yet-another-markdown-parser but fast, pure Ruby, using a strict syntax definition and supporting several common extensions.

A markdown pre-processor implementing file inclusion and page TOC (table of contents).

A pure-Ruby Markdown-superset interpreter.

A fast, safe and extensible Markdown to (X)HTML parser.

Gem to convert Microsoft Word documents to Markdown.

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

Wrapper objects which encapsulate measurements and their associated units in Ruby.

Provides classes and methods to perform unit math and conversions.

Try any Android library on your smartphone directly from the command line.

Connect all iOS deployment tools into one streamlined workflow.

Distribute iOS, Android and HarmonyOS apps to PGYER beta testing service from your Fastlane lane.

Real-time Push Service in the Cloud.

A platform for developing full stand-alone apps for Android using the Ruby language and libraries.

A revolutionary toolchain that lets you quickly develop and test full-fledged native iOS and OS X applications for iPhone, iPad, Mac and Android.

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

A library for converting various objects into Money objects.

A Ruby Library for dealing with money and currency conversion.

A music theory library with a command-line interface.

A Slack-Powered music bot for Spotify

A live coding synth for everyone originally designed to support computing and music lessons.

Awesome List for Practical Natural Language Processing done in Ruby.

A small Ruby library for constructing parsers in the PEG (Parsing Expression Grammar) fashion.

Ruby speech recognition with Pocketsphinx.

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

Collection of links to Ruby Natural Language Processing (NLP) libraries, tools and software.

Simple sentiment analysis with Ruby.

A collection of text algorithms including Levenshtein distance, Metaphone, Soundex 2, Porter stemming & White similarity.

Ruby gem for text readability analysis. Calculate readability statistics using 13 proven formulas (Flesch, SMOG, Coleman-Liau, etc.) with support for 22 languages.

Treat is a toolkit for natural language processing and computational linguistics in Ruby.

PEG (Parsing Expression Grammar) parser.

A highly customisable Ruby text analyser and word counter.

A pure Ruby DNS client library which implements a stub resolver. It aims to comply with all DNS RFCs.

A library for reading and writing packets to an interface or to a libpcap-formatted file.

A high-performance DNS server which can be easily integrated into other projects or used as a stand-alone daemon.

ActionMailer-like Notification System for your Ruby on Rails app.

The push notification service for Ruby which supports Apple Push Notification Service, Google Cloud Messaging, Amazon Device Messaging and Windows Phone Push Notification Service.

iOS, Android and Windows Phone Push notifications made easy.

Encryption Utilities for Web Push protocol.

Object-relational mapping in Rails.

An ODM (Object-Document-Mapper) framework for MongoDB in Ruby.

A Neo4j OGM (Object-Graph-Mapper) for use in Ruby on Rails and Rack frameworks heavily inspired by ActiveRecord.

A RethinkDB ORM for Ruby

Object-hash mapping library for Redis.

Redis Objects provides a Rubyish interface to Redis, by mapping Redis data types to Ruby objects, via a thin layer over the redis gem.

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 is a simple, flexible, and powerful SQL database access toolkit for Ruby.

Store up to 64 multiple flags in a single integer column with ActiveRecord.

a library for bulk inserting data using ActiveRecord.

A database sharding extension for ActiveRecord.

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

An exhaustive collection of off-the-shelf and tested ActiveModel/ActiveRecord validations.

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

Add multi-tenancy to a Rails app through a shared database strategy.

ActiveRecord plugin for atomic object tree archiving.

Provides the capabilities for sorting and reordering a number of objects in a list.

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

ActsAsTree but recursive.

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

Organise ActiveRecord model into a tree structure using a variation on the materialised path pattern.

Multi-tenancy for Rails and ActiveRecord.

Extending Arel: more "rubyish" syntax, functions for strings, dates, math... and add native extensions for some DBs.

Audited is an ORM extension for ActiveRecord & MongoMapper that logs all changes to your models.

Awesome Nested Set is an implementation of the nested set pattern for ActiveRecord models.

Save migrations and columns by storing multiple booleans in a single integer.

A little ActiveRecord extension for helping to insert lots of rows in a single insert statement.

Easily and efficiently make your ActiveRecord models support hierarchies using a Closure Table.

Download, pull out of a ZIP/TAR/GZ/BZ2 archive, parse, correct, and import XLS, ODS, XML, CSV, HTML, etc. into your ActiveRecord models.

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

Allows you to "destroy" an object without deleting the record or associated records.

A simple ActiveRecord mixin to add conventions for flagging records as discarded.

Enumerated attributes with I18n and ActiveRecord/Mongoid/MongoMapper support.

A ruby gem for easy data transfer.

Automatic ActiveRecord eager loading.

Database changes log for Rails.

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.

Adds reputation behavior to Rails apps in the form of Badges, Points, and Rankings for ActiveRecord or Mongoid.

Non-invasive multi-tenancy for Rails which supports Devise authentication out of the box.

A tree structure for Mongoid documents using the materialized path pattern.

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

Track changes to your ActiveRecord models' data for auditing or versioning.

A re-implementation of actsasparanoid for Rails 3 and 4, using much, much, much less code.

Soft-delete your ActiveRecord records, like an explicit version of ActsAsParanoid.

Simple positioning for Active Record models. Supports multiple lists per model and relative positioning.

Provides easy activity tracking for your ActiveRecord, Mongoid 3 and MongoMapper models in Rails 3 and 4. Similar to Github's Public Activity.

A modern row sorting library for ActiveRecord. It uses ARel aggressively and is better optimized than most other libraries.

A true Bayesian rating system with scope and cache enabled.

Fast and highly scalable read-optimized social activity feed library in pure Ruby, backed by Redis.

Manage read/unread status of ActiveRecord objects - and it's fast.

Boot large Ruby/Rails apps faster.

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).

Provides a C-optimized method for transforming a string from any capitalization into underscore-separated

A faster alternative to the custom use of inbatches with pluck.

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

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

Extract PDF pages as images and text. A simple Ruby API to ghostscript, imagemagick, and pdftotext.

A Versatile PDF Creation and Manipulation Library For Ruby.

Super simple PDF invoicing in Ruby (built on top of Prawn).

A framework for creating e-books from Markdown/Textile text markup using Ruby.

HTML+CSS to PDF using wkhtmltopdf.

Fast, Nimble PDF Writer for Ruby.

RGhost is a document creation and conversion API.

Squid · A Ruby library to plot charts in PDF files

PDF generator (from HTML) plugin for Ruby on Rails.

A Chef Cookbook manager.

Manage your application's gem dependencies with less pain.

A fully managed package management SaaS with support for Rubygems (and many others).

The Objective-C dependency manager.

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

The missing package manager for OS X.

A CLI workflow for the administration of Mac applications distributed as binaries.

Community's gem hosting service.

Traveling Ruby lets you create self-contained Ruby app packages for Linux and OS X.

Cursor-based pagination for ActiveRecord.

A Scope & Engine based, clean, powerful, customizable and sophisticated paginator for modern web app frameworks and ORMs.

A keyset pagination library to find the next or previous record(s) relative to the current one efficiently, e.g. for infinite scroll.

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.

A pagination library that integrates with Ruby on Rails, Sinatra, Merb, DataMapper and Sequel.

Measure your application in real time with Instrumental.

Find and fix Ruby errors with New Relic application monitoring and troubleshooting.

Performances and exceptions monitoring for Rails developers.

Scout Ruby Application Monitoring Agent.

A smart profiler for your Rails apps that visualizes request performance.

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.

Simple process monitoring tool.

Process monitoring tool. Inspired from Bluepill and God.

Manage Procfile-based applications.

An easy to configure, easy to extend monitoring framework written in Ruby.

A mountable Rails plug-in to check health of services (Database, Cache, Sidekiq, Redis, e.t.c.) used by the Rails app.

Run processes in the background (and foreground) on Mac & Linux from a Procfile.

Web interface that allows you to manage easily your Redis instance (see keys, memory used, connected client, etc...).

Cross-platform ruby library for managing child processes.

Fast Process::spawn for Rubys >= 1.8.7 based on the posixspawn() system interfaces.

A generic lazy batching mechanism to avoid N+1 DB queries, HTTP queries, etc.

Provides iteration per second benchmarking for Ruby.

Help to kill N+1 queries and unused eager loading.

A series of things you can use to benchmark any Rack based app.

Visual status bar showing Rails performance.

Profiler for your development and production Ruby rack apps.

profiler for Ruby. With a GUI.

Sampling profiler for any Ruby process.

A code profiler for MRI rubies.

A sampling call-stack profiler for ruby 2.1+.

Ruby Tests Profiling Toolbox

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

Backburner is a beanstalkd-powered job queue that can handle a very high volume of jobs.

Bunny is a popular, easy to use, well-maintained Ruby client for RabbitMQ (3.3+).

Database backed asynchronous priority queue.

GoodJob is a multithreaded, Postgres-based, ActiveJob backend for Ruby on Rails.

A parallel runner for complex workflows using only Redis and Sidekiq.

An ActiveJob extension to make long-running jobs interruptible and resumable.

Framework used to simplify Apache Kafka (a distributed streaming platform) based Ruby applications development.

Ordered processing of background jobs for cases where Sidekiq can't help.

Idiomatic, fast and well-maintained JRuby client for RabbitMQ.

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

A Redis-backed Ruby library for creating background jobs.

Enterprise Batch Processing System focused on performance, scalability, reliability, and visibility of every job in the system. Outgrown existing solutions? Or, start small and scale up later.

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

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.

A Sidekiq extension to make long-running jobs interruptible and resumable.

A fast background processing framework for Ruby and RabbitMQ.

A single process background processing library using Celluloid. Aimed to be Sidekiq's little brother.

Extensible Ruby wrapper for Atom and RSS parsers.

A feed fetching and parsing library.

A feed parser and normalizer (Atom, RSS, JSON, etc) library.

A simple, flexible, extensible, and liberal RSS and Atom reader.

A self-hosted, anti-social RSS reader.

Bootstrappers generates a base Rails app using Bootstrap template and other goodies.

The web app builder for Rails.

The Rails generator on steroids for starter apps.

Builds applications with the common customization stuff already done.

Suspenders is the base Rails application used at thoughtbot.

Arli is the CLI tool for searching, installing, and packaging Arduino libraries with a project using a YAML-based Arlifile. It's a "Bundler for Arduino Development".

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

The "Swiss Army bulldozer" of slugging and permalink plugins for Active Record.

A gem to make your Rails application SEO-friendly.

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

A framework-agnostic XML Sitemap generator written in Ruby.

A system to manage and monitor cron jobs.

A lightweight cron scheduler for the async job worker Que.

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

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

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

A scheduling add-on for Sidekiq.

An enhancement for Heroku Scheduler + Sidekiq for scheduling jobs at specific times with a readable YML file.

A Ruby gem that provides a clear syntax for writing and deploying cron jobs.

Library with documentation on when to use a particular structure/algorithm.

Library for developing bioinformatics software.

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

An active fork of Classifier, and general module to allow Bayesian and other types of classifications.

A library for storage, analysis, manipulation and visualization of data in pure Ruby.

A library for easy and interactive plotting on Jupyter Notebooks and web applications.

A ruby library which implements ID3 (information gain) algorithm for decision tree learning.

Statistical Distributions multi library wrapper.

A Ruby kernel for Jupyter.

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

Multi dimensional array implemented for JRuby inspired by NumPy.

Minimization algorithms on pure Ruby.

Fast numerical linear algebra library for Ruby.

N-dimensional Numerical Array for Ruby.

A Rubygem which provides a suite of extremely fast utility methods for testing and generating primes.

Calling Python functions from the Ruby language.

Data processing tools for Ruby.

A framework for graph data structures and algorithms.

A Rubygem which provides utilities to find all the nth roots of real and complex values.

An OpenCV wrapper for Ruby.

Tools for scientific computation in Ruby/Rails.

A suite for basic and advanced statistics on Ruby.

Generalized Linear Models extension for Statsample.

Bioruby Statsample TimeSeries.

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

Simple ElasticSearch client with support for migrations and ActiveRecord integration.

Ruby integrations for Elasticsearch.

Has scope allows you to easily create controller filters based on your resources named scopes.

Simple full text search implementation for Mongoid.

Builds ActiveRecord named scopes that take advantage of PostgreSQL's full text search.

Object-based searching.

The Ruby bindings of Groonga.

Adds a scope supporting search queries and autocompletion against existing fields on ActiveRecord models and associations.

Extends your ActiveRecord models to support fulltext search engine like queries via simple query strings and hash-based queries.

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.

A Ruby library for expressive, powerful interaction with the Solr search engine.

Exposes full text search capabilities from PostgreSQL, and allows you to declare full text indexes. Textacular extends ActiveRecord with namedscope methods making searching easy and fun!

A library for connecting ActiveRecord to the Sphinx full-text search tool.

Ruby client for Typesense, a fast, typo-tolerant search engine.

BeEF is short for The Browser Exploitation Framework. It is a penetration testing tool that focuses on the web browser.

Patch-level security verification for Bundler.

CMS/LMS/Library etc versions fingerprinter.

Hash type identifier (CLI & lib).

World's most used penetration testing software.

Password analyser and statistics generator

Rack middleware for blocking & throttling abusive requests.

Rack middleware for protecting against typical Web attacks.

A Ruby platform for vulnerability research and exploit development.

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.

Website Fingerprinter.

WordPress vulnerability scanner.

A Ruby Serverless Framework to create and deploy serverless microservices with ease, and to seamlessly glue AWS services.