Open Source Ruby Software
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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.
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Powerful App Monitoring Without Surprise BillsTired of monitoring tools that punish you for scaling? AppSignal offers transparent, predictable pricing with every feature unlocked on every plan. Track errors, monitor performance, detect anomalies, and manage logs across Ruby, Python, Node.js, and more. Trusted by developers since 2012 with free dev-to-dev support. No credit card required to start your 30-day trial.
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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.
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Zero Install is a decentralised cross-distribution software installation system. Create one package that works everywhere! With dependency handling and automatic updates, full support for shared libraries, and integration with native package managers
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milter manager
Protects you from spam mails and virus mails effectively with milter
This project has been moved to https://milter-manager.osdn.jp/ milter manager protects you from spam mails and virus mails effectively with milter. milter manager has embedded Ruby interpreter to control milters flexibly. milter manager can be used with Sendmail on Postfix on Ubuntu, CentOS, FreeBSD and so on. -
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Bridge Designer and Contest
A national virtual bridge engineering contest for kids of all ages.
**Unfortunately, the Bridge Contest is no longer operational. We hope the code base will be of use to others with similar projects in mind.** A national virtual bridge engineering contest with prizes for middle and high school kids, grades 6 to 12, but anyone can enter for fun. Based on the award-wining Bridge Designer client software, now open source through this project. Web site infrastructure supports worldwide participation in qualifying and semifinal rounds with a tiny administrative staff. The new Rails back end is a RubyMine project. Thanks to JetBrains for this mega development environment! -
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OpenProject
OpenProject is the leading open source project management software
Open source project management software. Efficient classic, agile or hybrid project management in a secure environment. Take control of your data and stay secure. Take back your data ownership, we give you the power to protect your privacy in a secure environment and with highest standards in data security and privacy. OpenProject can be installed on-premises in your own infrastructure, having full control and 100% data ownership. You know where your data is stored and what happens to it, without external influence. Make your teams' working lives easier, more productive, and more enjoyable. Whether it is traditional, agile or hybrid project management, OpenProject is the fastest and safest way for teams to connect, structure their work and achieve results. Everyone knows the goals and works together to achieve them. Organize your own tasks and assign tasks to a teammate. With OpenProject you have all the information in one place. -
Fully Managed MySQL, PostgreSQL, and SQL ServerCloud SQL handles your database ops end to end, so you can focus on your app.
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Canvas LMS
The open LMS by Instructure, Inc.
Canvas LMS is a full-featured learning management system designed for K–12, higher-ed, and professional training, with a strong emphasis on usability and openness. Instructors build courses from modular content—pages, assignments, discussions, quizzes—and organize them into learning paths with prerequisites and due dates. Rich grading tools like SpeedGrader streamline assessment with rubrics, inline annotations, and audio/video feedback, while the gradebook supports weighting, outcomes, and late/missing policies. A robust API, standards like LTI/IMS Common Cartridge, and SIS integrations make it straightforward to connect Canvas with publisher content, analytics tools, proctoring, and institutional systems. Role-based permissions, accommodations, and accessibility features support diverse learners at scale, and mobile apps keep students engaged on the go. -
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Metasploit Framework
Metasploit Framework
Metasploit Framework is a comprehensive penetration-testing and exploit development platform that streamlines the process of discovering, validating, and demonstrating vulnerabilities. It provides a modular architecture—payloads, encoders, exploits, auxiliaries, and post-exploitation modules—so security professionals can piece together complex attack chains or test defensive controls in realistic ways. Built-in features include an exploit database, network scanners, credential harvesters, and frameworks to craft reliable payload delivery while handling target nuances like mitigation bypasses and platform differences. Beyond raw exploitation, the framework includes post-exploitation tooling for lateral movement, persistence, data exfiltration simulations, and evidence collection, enabling red teams to exercise detection and incident response workflows. -
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Grafana
Leading open-source visualization and observability platform
Grafana OSS is a leading open-source visualization and observability platform that lets you query, visualize, alert on, and explore your data—regardless of where it’s stored. With support for 100+ data source plugins (such as Prometheus, Loki, Elasticsearch, InfluxDB, SQL/NoSQL databases, OTel, and more), you can unify metrics, logs, traces, and other observability signals in one place. Grafana OSS empowers you to build dynamic, reusable dashboards with rich visualizations, template variables, interactive filtering, and cross-panel linking. Its Explore mode enables ad-hoc queries and side-by-side comparisons of time ranges, queries, and data sources. Grafana also includes built-in alerting, allowing you to define threshold-based rules and send notifications to external systems (e.g. Slack, PagerDuty, OpsGenie). Backed by a strong community (https://grafana.com/community/) and open governance, Grafana OSS is free to use, modify, and deploy under the AGPL-3.0 license. -
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mrViewer
Flipbook, Image Viewer and Audio-Video Player
This project is no longer active. It has been replaced by mrv2 at: www.sourceforge.net/p/mrv2 A video player, interactive image viewer, and flipbook for use in VFX, 3D computer graphics and professional illustration. -
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Robolinux
Announcing Robolinux Cinnamon 14.1
Announcing The New Robolinux Series 14 Mate LTS - 2034 Robolinux is very pleased to announce a completely new 14.1 Mate privacy centered 1inux operating system you can download freely while also offering our users an optional 14+ advanced upgrade which comes with our Untracker and FAAST Boot along with one click popular privacy software installers like Tor and I2p, Wireshark and Bleachbit plus many more for a fair and reasonable price. Robolinux14.1-Mate is ideal for beginners and advanced users. We are proud that it comes with Enoch AI which is TOTALLY 100% PRIVATE, FREE, HONEST & UNCENSORED built into Robolinux Cinnamon 14.1 The Robolinux 14.1 version with rock solid Long Term Support through 2034! requires users to set secure boot in their BIOS. It is currently available in the Cinnamon desktop flavor. we will release series 14 Xfce version in the next two months.For more information please see Readme file. Warmest regards John Martinson Robolinux.org -
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.
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VYM (View Your Mind) is a tool to generate and manipulate maps which show your thoughts. Such maps can help you to improve your creativity and effectivity. You can use them for time management, to organize tasks, to get an overview over complex contexts
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Vinari OS 5.0.0 KRYPTON
Vinari OS 5.0.0 KRYPTON - Debian 13 Trixie based 64-Bit OS
Vinari OS 5.0.0 KRYPTON represents the next stage in our Debian-based evolution, now built on the 64-bit Debian 13 “Trixie” platform. Designed for both everyday users and developers, this release delivers a polished, reliable, and cohesive experience. At its foundation, Vinari OS 5.0.0 KRYPTON features the modern GNOME desktop environment, refined with practical enhancements such as GSConnect, DashToDock, and other usability-focused extensions. Continuing our focus on simplicity and efficiency, Vinari OS 5.0.0 KRYPTON uses the standard ‘deb’ packaging format for smooth system updates. It also includes seamless Flatpak and Flathub integration out of the box, giving users immediate access to a wide, flexible range of software. -
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Gumroad
Sell stuff and see what sticks
This repository contains the source code for Gumroad’s e-commerce platform, exposing how a modern creator-focused storefront and payments system is assembled. The app models products, variants, subscriptions, and checkout flows, then ties them to fulfillment, licensing, and customer communications. It implements typical marketplace concerns—order management, refunds, discounts, taxes, fraud checks, and analytics—through well-defined services and background jobs. The UI offers product pages, carts, and dashboards for creators to manage listings and see performance, while APIs/webhooks enable integrations with external sites and automation. The codebase demonstrates practical patterns for multi-tenant architecture, permissions, testing, and asynchronous processing at scale. For engineers, it’s both a working marketplace and a study in how to balance flexibility for creators with reliability in payments and delivery. -
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Logstash
Centralize, transform and stash your data
Logstash is a server-side data processing pipeline that dynamically ingests data from numerous sources, transforms it, and ships it to your favorite “stash” regardless of format or complexity. It supports and ingests data of all shapes, sizes and sources, dynamically transforms and prepares this data, and transports it to the output of your choice. Logstash is extensible, with over 200 plugins available to let you create and configure your pipeline how you choose. -
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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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GitLab
Please open new issues in our issue tracker on GitLab
GitLab is a single-application DevOps platform that brings source control, CI/CD, package registries, security scanning, and deployment pipelines under one roof to accelerate software delivery. Built around Git repositories and merge-request workflows, it tightly integrates continuous integration, automated testing, code review, and release orchestration so teams can move from idea to production within a unified UI and policy model. GitLab’s features extend into the operational lifecycle—container registries, infrastructure as code, monitoring dashboards, and incident management—allowing platform teams to define guardrails and compliance as code across projects and groups. It supports extensive automation via pipelines, runners, webhooks, and a comprehensive REST/GraphQL API, enabling complex workflows like canary deployments, feature flagging, and security scanning as part of merge request gates. -
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The Art of Programming
A collection of practical tips can be found at the bottom of this page
The Art of Programming (Second Edition) is a curated collection of programming problems and solutions originally derived from the Microsoft 100 Interview Questions blog series, later refined into a long-running tutorial and ultimately a published book. Created by July, the series began in 2010 and has since evolved into an in-depth exploration of algorithmic thinking, data structures, and coding interview preparation. The repository brings together 42 classic programming problems from the original series, enhanced with detailed explanations, formula derivations, and optimized solutions. In July 2023, work on the second edition was announced, which expands the project with updated content, new problems inspired by recent big-tech interviews, and introductions to modern machine learning techniques such as XGBoost, CNNs, RNNs, and LSTMs. This collection serves both as a historical record of algorithm problem-solving and as a living resource for programmers preparing for interviews. -
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Vagrant
Vagrant is a tool for building and distributing environments
Development environments simplified. Vagrant enables the creation and configuration of lightweight, reproducible, and portable development environments. Download the open-source Vagrant binary and run it locally or within your environments. Vagrant is designed for everyone as the simplest and fastest way to create a virtualized environment. Single workflow to build and manage virtual machine environments. Declarative configuration file describes all the requirements and builds them through a consistent workflow. Mirror production environments by providing the same operating system, packages, users, and configurations, all while giving users the flexibility to use their favorite editor, IDE, and browser. Share files and folders between a local machine and the Vagrant box. Start by following a tutorial to create a simple environment with Vagrant or learn about how the project works by exploring the documentation. -
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DocuSeal
Open source DocuSign alternative
Open source document filling and signing. DocuSeal is an open-source platform that provides secure and efficient digital document signing and processing. Create PDF forms to have them filled and signed online on any device with an easy-to-use, mobile-optimized web tool. Use embeddable code snippets to seamlessly implement the document signing workflows directly on your website or app. Build fillable document forms using our pixel-perfect HTML API, reducing the time for creating personalized documents. DocuSeal Pro users can connect their Gmail or Outlook accounts to send all signing invitation emails from their connected email address under a custom domain. All email messages sent via DocuSeal are customizable. With our step-by-step form users have a smooth signing experience on small mobile screens. Also, you can upload documents and request signatures directly from your device. -
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OpenSourceBilling
A super simple way to create & send invoices, receive payments online
OpenSourceBilling or OSB is a simple, open source web application for creating and sending invoices, receiving payments, managing clients, and tracking and reporting. There’s no need to pay for these services because OSB does it all for free and easily. OSB can produce reports of sales, payments and collected revenues, and simply makes billing and invoicing hassle-free. OSB comes with plenty of built-in features, such as recurring invoices, exporting to PDF, time tracking, receiving payments through Paypal and credit card, Freshbooks and Quickbooks data importing and more. It also supports several different languages as well as currencies. -
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<<Hack|Track GNU/Linux
Distro Penetrasing Live System Burn to USB Flash Disk & Run.
<<Hack|Track GNU/Linux is an open source operating system developed by the HTGL Project from Indonesia which provides penetration testing. -
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An STL format importer/exporter plugin script for Google SketchUp. Supports both binary and ASCII import and export.
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Jbuilder
Generate JSON objects with a Builder-style DSL
Jbuilder gives you a simple DSL for declaring JSON structures that beats manipulating giant hash structures. This is particularly helpful when the generation process is fraught with conditionals and loops. You can either use Jbuilder stand-alone or directly as an ActionView template language. When required in Rails, you can create views à la show.json.jbuilder (the json is already yielded). Fragment caching is supported, it uses Rails.cache and works like caching in HTML templates. If your collection cache depends on multiple sources (try to avoid this to keep things simple), you can name all these dependencies as part of a block that returns an array. -
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Systems Biology Markup Language (SBML)
A file format for exchanging computational models in systems biology
The Systems Biology Markup Language (SBML) is an XML-based description language for representing computational models in systems biology. Visit the project web site to learn more. -
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Mastodon
Self-hosted, globally interconnected microblogging community
Social networking, back in your hands. Follow friends and discover new ones among more than 4.4M people. Publish anything you want: links, pictures, text, video. All on a platform that is community-owned and ad-free. Mastodon isn’t a single website like Twitter or Facebook, it's a network of thousands of communities operated by different organizations and individuals that provide a seamless social media experience. Mastodon comes with effective anti-abuse tools to help protect yourself. Thanks to the network's spread out and independent nature there are more moderators who you can approach for personal help, and communities with strict codes of conduct. You have 500 characters. You can adjust the thumbnails of your pictures with focal points. You can use custom emojis, hide things behind spoiler warnings and choose who sees a given post. Messed it up? You can delete & redraft for quick corrections. -
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Oxidized
Oxidized is a network device configuration backup tool
Oxidized is a network device configuration backup and management tool that automates the process of collecting, storing, and versioning configurations from various networking hardware. Inspired by RANCID, it provides a scalable and Git-based approach to network configuration management, making it easier to track and roll back changes.
