Open Source Ruby Libraries
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Ruby Libraries
View 75 business solutionsBrowse 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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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. -
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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. -
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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. -
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GH Archive
GH Archive is a project to record the public GitHub timeline
GH Archive collects public GitHub activity and preserves it as a historical dataset for analysis. It polls GitHub’s event feed and groups the raw responses into compressed hourly JSON archives. The records cover actions such as commits, forks, issue activity, comments, and repository membership changes. Researchers can download specific hours, days, or longer periods with ordinary HTTP tools and process the events in their own systems. The dataset is also published through Google BigQuery for large-scale SQL-style exploration without downloading every archive. Its structure supports trend analysis, visualizations, machine learning, and open-source ecosystem research. The repository contains the crawler, supporting scripts, and website code, while the actual event files are hosted separately. -
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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. -
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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. -
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SSToolkit
A collection of well-documented iOS classes for making life easier
SSToolkit is an archived collection of reusable Objective-C components created to simplify common iOS interface and utility tasks. It began as a large library of classes developed from 2008 onward. The monolithic version was later deprecated because the collection had become difficult to maintain as a single package. Its functionality was divided into independent libraries covering badges, gradients, loading indicators, progress displays, text controls, web views, and UIKit helpers. The remaining SSToolkit package primarily acts as an umbrella header and CocoaPods specification that installs those smaller projects. It is best treated as a historical reference or component catalog rather than a recommended dependency for modern iOS development. -
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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. -
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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.
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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. -
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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. -
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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. -
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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. -
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DYI
DYI is a 2D graphics library, very rich and expressive.
DYI is a 2D graphics library, very rich and expressive. DYI have been optimized for SVG format, but it is also possible to output other format; for example, EPS. -
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DYI for Rails
"DYI for Rails" is a library for use DYI on Rails.
"DYI for Rails" is a library for use DYI on Rails. "DYI for Rails" provides some helpers and module for drawing a image of DYI. -
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Decision Tree
ID3-based implementation of the ML Decision Tree algorithm
DecisionTree is a Ruby library that implements decision tree learning with the ID3 information-gain algorithm. It can train models from discrete, continuous, or mixed attribute data. Continuous features are evaluated across possible split points to build threshold-based binary branches. Discrete models classify unique labels and can be rendered for visual inspection. The library supports inconsistent datasets, multiple or symbolic outputs, and fallback values when no branch matches an input. Its Ruleset trainer converts a tree into pruned rules using a held-out portion of the training data. A bagging trainer builds ten rulesets and combines their predictions through voting. -
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Down
Streaming downloads using Net::HTTP, http.rb or HTTPX
Down is a small, reliable Ruby library for downloading files that favors correctness, streaming, and clear error handling. It follows redirects safely, supports timeouts and retries, and streams responses to disk to keep memory usage low—ideal for large downloads or server environments. The API returns file-like objects (often Tempfile) with helpful metadata such as original filename and content type, which plays nicely with file-attachment libraries and background jobs. Multiple HTTP backends are supported, letting you choose between Net::HTTP or faster/feature-rich clients while keeping a consistent interface. It exposes distinct exception classes and content validation options, so callers can differentiate transient network issues from invalid responses. In practice, Down is often used as the dependable download layer in upload/processing pipelines where robustness matters more than raw feature bloat. -
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EventMachine
EventMachine, fast, simple event-processing library for Ruby programs
EventMachine is an event-driven I/O and lightweight concurrency library for Ruby. It provides event-driven I/O using the Reactor pattern, much like JBoss Netty, Apache MINA, Python's Twisted, Node.js, libevent and libev. Extremely high scalability, performance and stability for the most demanding production environments. An API that eliminates the complexities of high-performance threaded network programming, allowing engineers to concentrate on their application logic. This unique combination makes EventMachine a premier choice for designers of critical networked applications, including Web servers and proxies, email and IM production systems, authentication/authorization processors, and many more. EventMachine has been around since the early 2000s and is a mature and battle-tested library. -
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FriendlyId
FriendlyId is the “Swiss Army bulldozer” of slugging
FriendlyId is a Rails gem that provides human-readable slugs for ActiveRecord models, replacing numeric IDs in URLs with meaningful strings. For example, instead of /articles/123, you can have /articles/my-first-post. It integrates with ActiveRecord to generate slugs automatically based on attributes (like a title) and manages uniqueness, history, and slug regeneration when records change. FriendlyId also supports features like slug candidates, scoped slugs, and reserved word handling to avoid conflicts. It includes extensions to keep old slugs working as redirects, so links don’t break when content is renamed. By improving readability, SEO, and user-friendliness, FriendlyId has become the de facto solution for slugging in Rails applications. -
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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. -
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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. -
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Learning-SICP
Collection of Chinese cultural projects and course learning materials
Learning-SICP is a community project that localizes the MIT course “Structure and Interpretation of Computer Programs” (SICP) and curates complementary study materials for learners, especially Chinese-speaking Scheme/Lisp students. It focuses on translating the official lecture subtitles into Chinese while preserving the original English content for reference, providing an approachable path to a classic foundational course in computer science. The repository organizes translated subtitles, lecture indices, and supporting documents so learners can follow along with the full video series and consult the book and related readings as they study. Beyond subtitles, it aggregates links to the SICP text, environment setup guides, extended exercises, and FAQ resources to smooth first-time setup and deepen understanding of the material. -
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LightSpeedANN
Generator for optimized, vectorized neural net code
This Ruby program takes in a topology specification for an artificial neural network and emits optimized C code (using SSE intrinsics) that implements fast forward and backward propagation for that specific topology. -
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Linguist
Detect blob languages, suppress generated files and generate graphs
This library is used on GitHub.com to detect blob languages, ignore binary or vendored files, suppress generated files in diffs, and generate language breakdown graphs. Linguist is a Ruby library so you will need a recent version of Ruby installed. There are known problems with the macOS/XCode supplied version of Ruby that causes problems installing some of the dependencies. Accordingly, we highly recommend you install a version of Ruby using Homebrew, rbenv, rvm, ruby-build, asdf or other packaging system, before attempting to install Linguist and the dependencies. Linguist uses charlock_holmes for character encoding and rugged for libgit2 bindings for Ruby. These components have their own dependencies. A repository's languages stats can also be assessed from the command line using the github-linguist executable. Without any options, github-linguist will output the breakdown that correlates to what is shown in the language stats bar. -
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Mahatma68k is a free/Open Source emulator library for the legendary Motorola 68000 CPU written for the Java virtual machine.
