Open Source Ruby Software - Page 21

A Ruby library for accessing Facebook's API.

Facedex is an online mugbook system written in Ruby on Rails, allowing an organization (school/church/company) to easily set up a directory of all its members. Each personin your directory has their own profile with photo ("mugshot"), contact info, etc

GUIE (GUI Editor) provides a simple WYSIWYG GUI editor for many dynamic languages. Currently FarPy supports wxPython, wxRuby, wxPerl & IronPython!

Fast MCP is a lightweight framework designed to simplify the development and deployment of servers that implement the Model Context Protocol. The Model Context Protocol enables AI assistants and applications to connect with external tools, services, and data sources through a standardized interface. Fast-mcp provides developers with a streamlined toolkit for building MCP servers that expose application functionality to AI agents. The framework focuses on ease of use, allowing developers to quickly define tools, endpoints, and integrations that can be accessed through MCP-compatible clients. By abstracting much of the underlying infrastructure, fast-mcp enables rapid prototyping of AI-enabled applications that can interact with external systems such as databases, APIs, or file systems. The project emphasizes performance and simplicity, making it suitable for both small prototypes and production deployments.

FatNS Analyzes and Tests Name Servers. It is a PCAP-based security tool intended to sniff and detect common attacks on the DNS system, and is designed to be easily expandable with additional attack detectors.

The Fault Injection Toolkit is a sophisticated modern protocol fuzzing platform.

The Feynman Simulation Framework provides a standard methodology for software engineers to develop simulations in Ruby with the flexibility to develop only the classes that are necessary to solve the physical problem.

Analyze files and guess their true content's format. Extract hidden files from corrupted ones. Easily extensible by adding new plug-ins for new formats. Handles documents, videos, images, music, executables...

A Remake of The Final Fantasy Legend For Gameboy. Using the RPG Maker engine to bring FFL out of the 80s and into the 2000s

Finita is a software package for solving complex algebraic/differential systems of equations numerically using various grid methods.

Fixer is a lightweight and developer-friendly API service designed to provide real-time and historical foreign exchange rate data for a wide range of global currencies. It aggregates financial data from multiple sources, including institutions like the European Central Bank, to deliver accurate and frequently updated exchange rates. The API supports over 170 currencies and offers multiple endpoints that allow developers to retrieve latest rates, perform currency conversions, and analyze historical trends over time. One of its key strengths is its simplicity, as it uses straightforward RESTful endpoints and JSON responses that can be easily integrated into web or mobile applications. Fixer also supports time-series and fluctuation data, enabling more advanced financial analysis and forecasting use cases. While a free tier is available with some limitations, more advanced features such as higher request limits and additional base currencies are offered through paid plans.

Web-based software to manage a non-profit food coop (product catalog, ordering, accounting, job scheduling). A food cooperative is a group of people that buy food from suppliers of their own choosing. A collective do-it-yourself supermarket. Members order their products online and collect them on a specified day. And all put in a bit of work to make that possible. Foodsoft facilitates the process.

Foodyn CMS is a blog based CMS. It can handle multiple blogs/users/languages. It also has excellent plugin features. It runs on Ruby on Rails.

Schedule Foosball Games using this app. Handles player management, IM notifications, invitations, and auto team assignments.

Forem is an open-source platform for building community publishing sites—most famously powering the DEV community—that emphasizes authoring, discoverability, and social features tailored to niche communities. It combines long-form posts, collections, tagging, and following mechanisms with membership controls, moderation tools, and monetization options to let communities grow sustainably. The platform supports rich authoring (markdown, embeds), comment threading, reactions, and community curation so content creators and readers can engage in meaningful discussions rather than transient exchanges. Forem is designed to be portable and extensible: it exposes APIs for ingestion and embeds, theming options for brand alignment, and admin features for content policy, moderation workflows, and analytics. It encourages community governance patterns that let moderators and members participate in shaping norms and surfacing high-quality content.

Foreman is a Procfile-based process manager that mirrors Heroku’s process model, making it easy to run multi-process applications in development and beyond. You declare your app’s processes (web workers, background jobs, schedulers) in a Procfile, and Foreman starts them together, streams multiplexed logs, and manages environment variables from .env files. It handles port assignment and process concurrency, so you can spin up multiple copies of a worker or web server with a single command. Exporters generate native service definitions (e.g., systemd/Upstart/launchd), enabling the same process topology to run under OS service managers in staging or production. Colorized, prefixed logs and simple signals (restart/stop) provide a clear operational experience for polyglot stacks. By codifying your app’s runtime composition, Foreman reduces “works on my machine” friction and keeps local setups close to deployment reality.

FormCreator is a tool for users to quickly and graphically create online web forms. It allows paper forms to rapidly be converted to an online format by users with little or no techinical experience.

Forsythia is an open source weblog publishing platform. The platform supports RSS and Atom feeds, rich-text editing, customizable themes, comments, trackbacks, pingbacks and an XML-RPC interface.

An implementation of an Enterprise Resource Planning (ERP) system. The system has been developed in ASP.NET using NHibernate as a data access layer, allowing for a multitude of RDBMS to be used to store system data.

Ruby scripts grow 3D fractals and render them with PovRay, OpenInventor and YASRT. Includes (rough) ports of Lauren Lapre's LPARSER to GNU C++. Includes a RubyTk "sketch" output for quick previews as you edit a script.

Free and easy to implement algorithm that can be used for resource leveling in Gantt projects. Uses resources assignment policies, availibility calendars, tasks\' priorities, dependencies, sizings, complexity due to human communication.

The Free-POSIX Common Desktop Project exists to create an open standard for free Desktop implementations.

FreeCMIS provides a complete client administration system for Health Clubs and Gyms.

Information should be unencumbered. FreeEBook is a program designed to make the business of reading and writing books for online publication a simple matter.