Browse free open source Ruby Libraries and projects below. Use the toggles on the left to filter open source Ruby Libraries by OS, license, language, programming language, and project status.

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  • 1
    Faraday

    Faraday

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

    Faraday is an HTTP client library abstraction layer 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. You probably don't want to use Faraday directly in your project, as it will lack an actual client library to perform requests. Instead, you probably want to have a look at Awesome Faraday for a list of available adapters. The best starting point is the Faraday Website, with its introduction and explanation. This library aims to support and is tested against the currently officially supported Ruby implementations. This means that, even without a major release, we could add or drop support for Ruby versions, following their EOL. Currently that means we support Ruby 2.6+. You can also install the faraday_middleware extension gem to access a collection of useful Faraday middleware.
    Downloads: 5 This Week
    Last Update:
    See Project
  • 2
    Google Toolbox for Mac

    Google Toolbox for Mac

    Google Toolbox for Mac

    Google Toolbox for Mac (GTMSession) is a comprehensive collection of open source Objective-C utilities and frameworks developed by Google to support macOS and iOS application development. It consolidates reusable code components drawn from various internal Google projects, offering developers a wide range of tools for building efficient, maintainable Apple platform software. The library includes modules for networking, logging, testing, data handling, and user interface extensions, helping developers avoid reinventing common functionality. Its modular design allows developers to integrate only the components they need, improving project flexibility and performance. With well-documented interfaces and consistent coding standards, Google Toolbox for Mac serves as a reliable foundation for both small and large-scale applications. It continues to be widely used across open source and internal projects that target Apple ecosystems.
    Downloads: 5 This Week
    Last Update:
    See Project
  • 3
    Asciidoctor PDF

    Asciidoctor PDF

    Asciidoctor PDF: A native PDF converter for AsciiDoc

    A fast text processor & publishing toolchain for converting AsciiDoc to HTML5, DocBook & more. Asciidoctor is a fast, open source, Ruby-based text processor for parsing AsciiDoc® into a document model and converting it to output formats such as HTML 5, DocBook 5, manual pages, PDF, EPUB 3, and other formats. Asciidoctor also has an ecosystem of extensions, converters, build plugins, and tools to help you author and publish content written in AsciiDoc.
    Downloads: 4 This Week
    Last Update:
    See Project
  • 4
    Bourbon

    Bourbon

    A lightweight sass tool set

    Bourbon is a library of Sass mixins and functions that are designed to make you a more efficient style sheet author. It’s not recommended that you modify Bourbon’s files directly as it will make updating to future versions difficult, by overwriting your custom changes or causing merge conflicts. Import Bourbon at the beginning of application.scss. Any project styles that utilize Bourbon’s features must be imported after Bourbon. Bourbon supports Internet Explorer 11+ and the latest versions of Chrome, Firefox, Safari, and Edge. Bourbon is maintained by the thoughtbot design team. It is funded by thoughtbot, inc. and the names and logos for thoughtbot are trademarks of thoughtbot, inc. You can target installation into a specific directory using the path flag. Bourbon is copyright © 2011-2020 thoughtbot, inc. It is free software, and may be redistributed under the terms specified in the license.
    Downloads: 4 This Week
    Last Update:
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  • Easy-to-use online form builder for every business. Icon
    Easy-to-use online form builder for every business.

    Create online forms and publish them. Get an email for each response. Collect data.

    Easy-to-use online form builder for every business. Create online forms and publish them. Get an email for each response. Collect data. Design professional looking forms with JotForm Online Form Builder. Customize with advanced styling options to match your branding. Speed up and simplify your daily work by automating complex tasks with JotForm’s industry leading features. Securely and easily sell products. Collect subscription fees and donations. Being away from your computer shouldn’t stop you from getting the information you need. No matter where you work, JotForm Mobile Forms lets you collect data offline with powerful forms you can manage from your phone or tablet. Get the full power of JotForm at your fingertips. JotForm PDF Editor automatically turns collected form responses into professional, secure PDF documents that you can share with colleagues and customers. Easily generate custom PDF files online!
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  • 5
    Dependabot

    Dependabot

    Dependabot's core logic for creating update PR's

    Dependabot-Core is the library at the heart of Dependabot security/version updates. Use it to generate automated pull requests updating dependencies for projects written in Ruby, JavaScript, Python, PHP, Dart, Elixir, Elm, Go, Rust, Java and .NET. It can also update git submodules, Docker files, and Terraform files. Check for the latest version of a dependency that's resolvable given a project's other dependencies. Generate updated manifest and lockfiles for a new dependency version. Generate PR descriptions that include the updated dependency's changelogs, release notes, and commits.
    Downloads: 4 This Week
    Last Update:
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  • 6
    HexaPDF

    HexaPDF

    Versatile PDF creation and manipulation for Ruby

    HexaPDF is a pure Ruby library with an accompanying application for working with PDF files. It was designed with ease of use and performance in mind. It uses lazy loading and lazy computing when possible and tries to produce small PDF files by default.
    Downloads: 3 This Week
    Last Update:
    See Project
  • 7
    Mechanize

    Mechanize

    Mechanize is a ruby library that makes automated web interaction easy

    The Mechanize library is used for automating interaction with websites. Mechanize automatically stores and sends cookies, follows redirects, and can follow links and submit forms. Form fields can be populated and submitted. Mechanize also keeps track of the sites that you have visited as a history. This library was heavily influenced by its namesake in the Perl world. Mechanize#transact runs the given block and then resets the page history. I.e. after the block has been executed, you're back at the original page; no need to count how many times to call the back method at the end of a loop (while accounting for possible exceptions).
    Downloads: 3 This Week
    Last Update:
    See Project
  • 8
    Phonelib

    Phonelib

    Ruby gem for phone validation and formatting

    Phonelib is a Ruby gem that provides phone number validation and formatting capabilities by leveraging Google's libphonenumber library. It enables developers to parse, validate, and format international phone numbers within Ruby applications.​
    Downloads: 3 This Week
    Last Update:
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  • 9
    Opal jQuery

    Opal jQuery

    jQuery for Opal

    opal-jquery provides DOM access to opal by wrapping jQuery (or zepto) and providing a nice ruby syntax for dealing with jQuery instances. opal-jquery provides an Element class, whose instances are toll-free bridged instances of jQuery objects. Just like ruby arrays are just javascript arrays, Element instances are just jQuery objects. This makes interaction with jQuery plugins much easier. Also, Element will try to bridge with Zepto if it cannot find jQuery loaded, making it ideal for mobile applications as well. The request is actually triggered inside the HTTP. get method, but due to the async nature of the request, the callback and errback handlers can be added anytime before the request returns.
    Downloads: 2 This Week
    Last Update:
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  • Quality and compliance software for growing life science companies Icon
    Quality and compliance software for growing life science companies

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  • 10
    Rein

    Rein

    Database constraints made easy for ActiveRecord

    Data integrity is a good thing. Constraining the values allowed by your application at the database level, rather than at the application level, is a more robust way of ensuring your data stays sane. Unfortunately, ActiveRecord doesn't encourage (or even allow) you to use database integrity without resorting to hand-crafted SQL. Rein (pronounced "rain") adds a handful of methods to your ActiveRecord migrations so that you can easily tame the data in your database. All methods in the DSL are automatically reversible, so you can take advantage of reversible Rails migrations.
    Downloads: 2 This Week
    Last Update:
    See Project
  • 11
    Resque

    Resque

    Ruby library for creating background jobs and processing them

    Resque is a Redis-backed Ruby library for creating background jobs, placing them on multiple queues, and processing them later. Resque (pronounced like "rescue") is a Redis-backed library for creating background jobs, placing those jobs on multiple queues, and processing them later. Background jobs can be any Ruby class or module that responds to perform. Your existing classes can easily be converted to background jobs or you can create new classes specifically to do work. Or, you can do both. Resque is heavily inspired by DelayedJob (which rocks) and comprises three parts, a Ruby library for creating, querying, and processing jobs, a Rake task for starting a worker which processes jobs, a Sinatra app for monitoring queues, jobs, and workers. Resque workers can be distributed between multiple machines, support priorities, are resilient to memory bloat / "leaks," are optimized for REE (but work on MRI and JRuby), tell you what they're doing, and expect failure.
    Downloads: 2 This Week
    Last Update:
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  • 12
    Stripe Ruby Library

    Stripe Ruby Library

    Ruby library for the Stripe API

    A Ruby library that enables developers to integrate Stripe’s payment gateway into Ruby applications, streamlining billing, payments, and customer management.
    Downloads: 2 This Week
    Last Update:
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  • 13
    Geocoder

    Geocoder

    Complete Ruby geocoding solution

    Geocoder is a full-featured geocoding library for Ruby that integrates seamlessly with Rails applications. It enables converting addresses into geographic coordinates (latitude and longitude) and vice versa, known as reverse geocoding. The gem supports multiple geocoding services like Google, Bing, Mapbox, and OpenStreetMap, letting developers choose based on cost or coverage. Beyond simple geocoding, Geocoder can perform IP address lookups, distance queries, and proximity searches directly in ActiveRecord or Mongoid models. With its database integration, you can query for nearby records, order results by distance, or filter results within a radius, making it invaluable for location-based apps. By abstracting away API differences and providing a clean Ruby interface, Geocoder makes geospatial features straightforward to implement in web and mobile projects.
    Downloads: 1 This Week
    Last Update:
    See Project
  • 14
    Pedestal

    Pedestal

    The Pedestal Server-side Libraries

    Pedestal is a set of libraries that we use to build services and applications. It runs in the back end and can serve up whole HTML pages or handle API requests. There are a lot of tools in that space, so why did we build Pedestal? We had two main reasons. Pedestal is designed for APIs first. Most web app frameworks still focus on the "page model" and server-side rendering. Pedestal lets you start simple and add that if you need it. Pedestal makes it easy to create "live" applications. Applications must respond with immediate feedback even while some back-end communication goes on. Pedestal makes it easy to deliver server-sent events and asynchronous updates. Pedestal works with a huge variety of containers and deployment options. Deploy applications or microservices on unikernels, Docker containers, or JAR files. Pedestal supports Tomcat, Jetty, Immutant (with Undertow), Vert.x, nginx, and Netty.
    Downloads: 1 This Week
    Last Update:
    See Project
  • 15
    Server configuration

    Server configuration

    Docker Compose with Traefik and lots of services

    Your (my) own server configuration, managed by docker-compose, with the comprehensive default configuration.
    Downloads: 1 This Week
    Last Update:
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  • 16
    XSpear

    XSpear

    Powerfull XSS Scanning and Parameter analysis tool&gem

    XSpear is an XSS Scanner on ruby gems. Powerful XSS Scanning and Parameter analysis tool&gem.
    Downloads: 1 This Week
    Last Update:
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  • 17
    dryrun

    dryrun

    Try the demo project of any Android Library

    Try any android library hosted online directly from the command line. Try any android library hosted online directly from the command line. Specify any custom branch to run. Specify any flavour to run. Specify any app module to run. Checkout tag/commit hash to clone (e.g. "v0.4.5", "6f7dd4b").
    Downloads: 1 This Week
    Last Update:
    See Project
  • 18
    A collection of open source libraries and tools that provide solutions for common problems in processing Arabic text, especially in web applications. text normalization, phrase segmentation, text indexing, stop word lists, common spelling mistakes.
    Downloads: 3 This Week
    Last Update:
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  • 19

    Rpg.NET

    Performance enhancement API for RPG Maker XP, VX, VXA.

    Rpg.NET is an API built using the .NET Framework for both improving performance and enhancing the RPG Maker series (XP, VX, and VXA). Contained within are various functions and classes that extend the ability of RPG Maker in areas such as graphics, audio, and Windows API interop. Included is a Ruby script that is the wrapper around the library, so it can be used as any other script within your game.
    Downloads: 3 This Week
    Last Update:
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  • 20
    RUBYGAME HAS MOVED. http://rubygame.org
    Downloads: 2 This Week
    Last Update:
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  • 21
    ioblockreader

    ioblockreader

    Block-buffered and cached read over IO objects as Strings

    Ruby library giving block-buffered and cached read over IO objects with a String-like interface. Ideal to parse big files as Strings, limiting memory consumption.
    Downloads: 1 This Week
    Last Update:
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  • 22
    Ruby library grouping various light-weight modules useful for many applications. Currently ships: Logging, Platform, GUI, Misc, Plugins, URLAccess, URLCache. See it as a collection of mini-libraries.
    Downloads: 1 This Week
    Last Update:
    See Project
  • 23
    Awesome Print

    Awesome Print

    Pretty print your Ruby objects with style

    Awesome Print is a Ruby library that pretty prints Ruby objects in full color exposing their internal structure with proper indentation. Rails ActiveRecord objects and usage within Rails templates are supported via included mixins.
    Downloads: 0 This Week
    Last Update:
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  • 24
    CanCan

    CanCan

    Authorization Gem for Ruby on Rails

    CanCan is an authorization library for Ruby on Rails that helps manage user permissions in a clean and consistent way. It centralizes all authorization logic in a single Ability class, where you define what actions each type of user can or cannot perform on different resources. Developers then use helpers like authorize! in controllers or can? in views to enforce those rules without scattering permission logic across the application. It supports defining permissions using conditions, allowing granular access based on attributes like ownership or role. Because it abstracts authorization cleanly, applications stay easier to read, test, and maintain as business rules evolve. Though no longer actively maintained in its original form, CanCan inspired forks and successors (such as CanCanCan) that continue to be widely used in Rails projects.
    Downloads: 0 This Week
    Last Update:
    See Project
  • 25
    Chartkick

    Chartkick

    Create beautiful JavaScript charts with one line of Ruby

    Chartkick is a Ruby gem that makes it easy to generate beautiful charts in Rails and other Ruby applications with minimal code. It provides a high-level API where developers can use simple helpers like line_chart, pie_chart, or column_chart and pass in data arrays or ActiveRecord queries. Under the hood, it works with popular charting libraries such as Google Charts, Chart.js, and Highcharts, but hides their verbose JavaScript APIs behind a clean Ruby interface. It also handles things like automatic labels, legends, colors, and responsiveness without requiring you to manually configure chart options. Because of its integration with ActiveRecord, developers can quickly visualize trends in their application’s data with minimal transformation. Chartkick is especially valued in dashboards, reporting tools, and admin panels where quick, maintainable visualization is needed without heavy front-end development.
    Downloads: 0 This Week
    Last Update:
    See Project
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