Open Source Ruby Software - Page 3
Sort By:
Ruby Software
Browse free open source Ruby Software and projects below. Use the toggles on the left to filter open source Ruby Software by OS, license, language, programming language, and project status.
-
Easily Host LLMs and Web Apps on Cloud RunRun frontend and backend services, batch jobs, host LLMs, and queue processing workloads without the need to manage infrastructure. Cloud Run gives you on-demand GPU access for hosting LLMs and running real-time AI—with 5-second cold starts and automatic scale-to-zero so you only pay for actual usage. New customers get $300 in free credit to start.
-
Go From AI Idea to AI App FastAccess Gemini 3 and 200+ models. Build chatbots, agents, or custom models with built-in monitoring and scaling.
-
1
CSS-Only Chat
A truly monstrous async web chat using no JS whatsoever
css-only-chat is a proof-of-concept demonstration that implements a functioning chat interface using only HTML and CSS, without any JavaScript or backend logic. The project showcases creative use of CSS selectors, checkboxes, labels, and the :checked pseudo-class to mimic interactive behaviors normally handled by JavaScript. Messages are pre-written in the HTML and displayed based on user interaction, making it more of a playful experiment than a real messaging platform. Its main purpose is to illustrate the limits of CSS as a programming and UI tool, serving as both an educational example and a bit of humor within the developer community. By pushing CSS beyond its conventional role, it demonstrates how user interfaces can be simulated through styling tricks and static structures. Although not suitable for production use, it stands as a fun exercise in front-end creativity and unconventional coding challenges. -
2
Concurrent Ruby
Modern concurrency tools including agents, futures, promises, etc.
Modern concurrency tools including agents, futures, promises, thread pools, supervisors, and more. Inspired by Erlang, Clojure, Scala, Go, Java, JavaScript, and classic concurrency patterns. Concurrent Ruby is an 'unopinionated' toolbox that provides useful utilities without debating which is better or why. It remains free of external gem dependencies. It stays true to the spirit of the languages providing inspiration, but implements in a way that makes sense for Ruby. Keeps the semantics as idiomatic Ruby as possible, supports features that make sense in Ruby. Excludes features that don't make sense in Ruby. It is small, lean, and loosely coupled, thread-safety, and with backward compatibility. Concurrent Ruby makes one of the strongest thread safety guarantees of any Ruby concurrency library, providing consistent behavior and guarantees on all four of the main Ruby interpreters (MRI/CRuby, JRuby, Rubinius, TruffleRuby). -
3
DevDocs
API Documentation Browser
The devdocs repository powers the DevDocs web application, a fast, offline-friendly documentation browser for many programming languages, libraries, and APIs. It aggregates documentation from multiple sources (e.g., MDN, Python, Ruby, Git, etc.), converts them into a uniform format, and indexes them for instant text searching. The codebase includes a backend that handles ingestion, parsing, and transformation of documentation sources into a static site structure, as well as the client side UI code for browsing, searching, and reading docs in a responsive interface. DevDocs supports offline usage: users can download sets of docs for use without an internet connection, benefiting from caching and compact compressed storage. The repository includes scripts for updating doc sources, building, and deploying the documentation site. Because it is meant as a reference tool, performance and usability (e.g. fast search, minimal latency) are emphasized in design. -
4
Gitlab CLI
Ruby wrapper and CLI for the GitLab REST API
Gitlab CLI is a Ruby gem and CLI tool that wraps the REST API of GitLab (including self-hosted GitLab instances) to make automation, scripting and integration simpler. It provides a Ruby DSL that abstracts away direct HTTP calls, letting developers interact with GitLab’s API in idiomatic Ruby (creating projects, merge requests, listing users, etc.). In addition to the Ruby library, there is a command-line interface which enables many GitLab operations from the terminal (or scripts) without needing to manually craft API requests. The gem supports customization of endpoint URL, private tokens, proxy and HTTP options, making it suitable for self-managed GitLab instances as well as gitlab.com. It is test-covered and built to be simple to integrate into Ruby projects or CI scripts. Being open-source under a BSD-2-Clause license, it invites reuse in organizational tooling or internal DevOps workflows. Overall, it is a useful tool for teams working with GitLab who want to automate tasks. -
MongoDB Atlas runs apps anywhereMongoDB Atlas gives you the freedom to build and run modern applications anywhere—across AWS, Azure, and Google Cloud. With global availability in over 115 regions, Atlas lets you deploy close to your users, meet compliance needs, and scale with confidence across any geography.
-
5
Homebrew Core
Default formulae for the missing package manager for macOS (or Linux)
Homebrew-core is the canonical formula repository for Homebrew, the macOS (and Linux) package manager, containing the Ruby “formulae” that describe how to fetch, build, and install thousands of open-source packages. Each formula encodes metadata, dependencies, build instructions, and tests so Homebrew can produce reproducible bottles (prebuilt binaries) or source builds across supported macOS and Linux environments. The repo is the operational center for package maintenance: maintainers review updates, address compatibility patches, and manage version migrations and deprecations to keep the ecosystem healthy. When users install or upgrade packages, Homebrew leverages the core formulae to resolve dependencies, perform sandboxed builds, and run post-install hooks, making development toolchains and end-user apps easy to provision. -
6
Lolcat
Rainbows and unicorns
Lolcat is a command-line tool that colorizes terminal output by printing text in rainbow gradients. Inspired by the original Ruby “lolcat” project, it takes input from stdin or files and outputs the same text with colorful ANSI escape codes. It’s frequently used to add a playful touch to logs, help messages, or shell scripts, making otherwise mundane terminal output more fun. Options allow customizing color spread, speed, and randomization to create different rainbow effects. Lolcat is often piped into commands like cat, figlet, or fortune to create whimsical and eye-catching console art. Despite being lighthearted in purpose, it demonstrates the use of ANSI codes and stream manipulation in a clean, portable way. -
7
Loomio
Make better decisions together
Making important decisions is critical for any business or organization to succeed. However, making wise decisions as a group can be quite the challenge, especially if these decision makers aren't in the same location. Loomio is the solution for such businesses and organizations. It is a collaborative decision-making tool that makes it easy for anyone to participate in decisions, and helps groups make the best decisions together. No need for tedious meetings and endless email chains-- with Loomio people can participate on the web, email or mobile, in their own time. Loomio adapts to various discussion formats and styles, and offers effective polling and decision-making tools so your group can always decide your next steps fast, firmly and fairly. -
8
Manyfold
A self-hosted digital asset manager for 3d print files
Manyfold is an open-source 3D collaboration platform that reimagines how distributed teams and communities can meet, create, and interact in immersive spatial environments through the web. Instead of forcing users to download native apps or create accounts on closed metaverse services, Manyfold runs entirely in the browser, letting people join 3D spaces with simple links and participate in real time using avatars, voice chat, and object interaction. Users can build or import shared 3D worlds, arrange media, embed content, and design interactive layouts that support presentations, workshops, social events, games, and team gatherings without heavy software installations. The platform emphasizes accessibility and flexibility, making 3D collaboration as easy as sharing a document link while still providing spatial audio, synchronized interactions, and physics-aware environments that feel alive and responsive. -
9
Mastodon social network
Your self-hosted, globally interconnected microblogging community
Your home feed should be filled with what matters to you most, not what a corporation thinks you should see. Radically different social media, back in the hands of the people. You know best what you want to see on your home feed. No algorithms or ads to waste your time. Follow anyone across any Mastodon server from a single account and receive their posts in chronological order, and make your corner of the internet a little more like you. Mastodon provides you with a unique possibility of managing your audience without middlemen. Mastodon deployed on your own infrastructure allows you to follow and be followed from any other Mastodon server online and is under no one's control but yours. Mastodon puts decision making back in your hands. Each server creates their own rules and regulations, which are enforced locally and not top-down like corporate social media, making it the most flexible in responding to the needs of different groups of people. -
Cut Data Warehouse Costs by 54%BigQuery delivers 54% lower TCO with exabyte scale and flexible pricing. Free migration tools handle the SQL translation automatically.
-
10
Opal
Opal is a Ruby to JavaScript source-to-source compiler
Opal is a Ruby to JavaScript source-to-source compiler. It comes packed with the Ruby corelib you know and love. It is both fast as a runtime and small in its footprint. The lib directory holds the Opal parser/compiler used to compile Ruby into JavaScript. It is also built ready for the browser into opal-parser.js to allow compilation in any JavaScript environment. This directory holds the Opal runtime and corelib implemented in Ruby and JavaScript. opal-parser allows you to eval Ruby code directly from your HTML (and from Opal) files without needing any other building process. Opal.compile is a simple interface to just compile a string of Ruby into a string of JavaScript code. See the website for more detailed instructions and guides for Rails, jQuery, Sinatra, rack, CDN, etc. -
11
RubyGems
Library packaging and distribution for Ruby
RubyGems is a package management framework for Ruby. A package (also known as a library) contains a set of functionality that can be invoked by a Ruby program, such as reading and parsing an XML file. We call these packages "gems" and RubyGems is a tool to install, create, manage and load these packages in your Ruby environment. RubyGems is also a client for RubyGems.org, a public repository of Gems that allows you to publish a Gem that can be shared and used by other developers. See our guide on publishing a Gem. -
12
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. -
13
The Sourdough Framework
Make the best possible sourdough bread at home
The Sourdough Framework is an open, experiment-driven handbook that explains sourdough baking as a system rather than a set of isolated recipes. It breaks breadmaking into measurable variables—starter strength, flour characteristics, hydration, temperature, salt, timing—and shows how each affects dough behavior and flavor. The text leans on baker’s percentages and dough temperature targets to help you plan, troubleshoot, and reproduce results across seasons and kitchens. You’ll find step-by-step fermentation schedules, shaping and scoring guidance, and comparisons of techniques like slap-and-fold, stretch-and-fold, autolyse, and cold retard. A strong emphasis on diagnostics helps you read the dough (windowpane, poke test, gas retention) and fix common problems such as dense crumbs, weak gluten, or over-/under-proofing. -
14
ciao
HTTP checks & tests (private & public) monitoring
HTTP checks & tests (private & public) monitoring - check the status of your URL. ciao checks HTTP(S) URL endpoints for a HTTP status code (or errors on the lower TCP stack) and sends a notification on status change via E-Mail or Webhooks. It uses Cron syntax to schedule the checks and comes along with a Web UI and a RESTful JSON API. Create an open-source web application for checking URL statuses with a UI and a REST API which is easy to install and maintain (no external dependencies like Databases, Caches, etc.) in public and private environments. -
15
KaNaPi
Educational Linux Distribution
Main goals: * Prepare operating system based on Linux kernel and free software for use at home from scratch by building sources. Binary packages/images are also available. * Each package is installed in separate directory, so you can use different versions of applications and libraries by design. * There is only one user 'kanapi' with root permissions, so you don't have to login, remember passwords, etc. * Simple configuration * Automatic compilation. -
16
ANDRAX Hacker's Platform
Advanced Ethical Hacking and Penetration Testing Platform
The most complete and Advanced Penetration Testing and Ethical Hacking Platform dedicated to Advanced Professionals. Developed to bring the power of Offensive Security in the anyone's pocket 100% OPEN SOURCE - ANDRAX is a independent solution for Security professionals who loves Linux -
17
Marathon -GUI Test Runner Web, Swing, FX
Marathon supports testing of Java/Swing and Java/Fx applications.
Marathon provides an integrated environment for test script creation and execution. Supported FW: Web, Java Swing/ Java FX. Currently, Marathon supports JRuby script models for recording the test scripts.Marathon test runner generates Allure test reports.Marathon allows for grouping of test cases.It also has an option of inserting modules while recording(in MarathonITE while recording). It allows tester to inset checklist while recording and also takes screen capture and annotate it in playing the test cases. Extraction of code into modules and inserting it is very easy using marathon.It has different themes of UI which attracts tester to do work on it. Object mapping is quite simple and configuring is very easy for tester to understand and do the work. Debugging of test scripts is also easy and has script console which takes selenium commands. Slow play of test cases is also available.It allows to create multiple fixtures for different types of tests. -
18
The NERO Character Creator is a tool designed to create and track your NERO International characters. Keep track of your character's build, experience history, formal effects, and backstory all in one easy-to-use application.
-
19
miRprimer
Automatic design of primers for miR-specific RT-qPCR
miRprimer designs primers for PCR amplification of microRNAs as described (Busk (2014). A tool for design of primers for microRNA-specific quantitative RT-qPCR. BMC Bioinformatics. 15, 29) for use with the method miR-specific RT-qPCR (Cirera, S., and Busk, P.K. (2014). Quantification of miRNAs by a simple and specific qPCR method. Methods in Molecular Biology. 1182, 73-81.). The program was written in Ruby and is available as source code for developers and as an .exe file for easy use. -
20
Snd
Snd is a sound editor
Snd is a sound editor. -
21
Compass
Stylesheet authoring framework
Compass is a stylesheet authoring framework built on top of Sass that provides a rich set of mixins, functions, and helpers for writing maintainable CSS. It offers abstractions for vendor prefixes, cross-browser compatibility fixes, and reusable UI patterns like grids, buttons, and typography helpers. With Compass, developers can write cleaner Sass code that compiles into consistent CSS across browsers without hand-coding workarounds. The framework also includes a command-line tool for compiling Sass, managing sprite sheets, and integrating with build workflows. It was widely adopted in the era before modern CSS standards caught up with mixins and variables, helping developers speed up styling while reducing redundancy. While less dominant today, Compass remains an important historical tool that influenced the evolution of Sass and frontend best practices. -
22
Cucumber
Cucumber for Ruby
It’s simple. Whether open source or commercial, our collaboration tools will boost your engineering team's performance by employing Behavior-Driven Development (BDD). And with our world-class training, take it to places it’s never been. Cucumber is a tool for running automated tests written in plain language. Because they're written in plain language, they can be read by anyone on your team. Because they can be read by anyone, you can use them to help improve communication, collaboration and trust on your team. This is the Ruby implementation of Cucumber. Cucumber is also available for JavaScript, Java, and a lot of other languages. Validate executable specifications against your code on any modern development stack. 40+ million open source downloads, the #1 tool for BDD. CucumberStudio is the leading collaboration platform for BDD - an easy-to-use tool to define ideas, test code, and learn in production from real-time insight. -
23
GitHub Metadata
Jekyll plugin to propagate the `site.github` namespace
Jekyll plugin to propagate the site.github namespace and set default values for use with GitHub Pages. -
24
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. -
25
GraphQL Batch
A query batching executor for the graphql gem
A query batching executor for the graphql gem. Provides an executor for the graphql gem which allows queries to be batched. Define a custom loader, which is initialized with arguments that are used for grouping and a perform method for performing the batch load. Use GraphQL::Batch as a plugin in your schema after specifying the mutation so that GraphQL::Batch can extend the mutation fields to clear the cache after they are resolved. The loader class can be used from the resolver for a graphql field by calling .for with the grouping arguments to get a loader instance, then call .load on that instance with the key to load. Although this library doesn't have a dependency on active record, the examples directory has record and association loaders for active record which handles edge cases like type-casting ids. GraphQL::Batch::Loader#load returns a Promise using the promise.rb gem to provide a promise-based API, so you can transform the query results using .then.
