Open source. Open possibilities.

Discourse is an open-source community platform designed for hosting discussion forums with real-time chat and extensive customization options.

Active Admin is a Ruby on Rails framework for quickly building elegant, customizable back-office administration interfaces with a developer-facing DSL and a business-facing UI.

GitLab is a comprehensive open-source Git repository management platform providing tools for the entire software development lifecycle.

Forem is an open-source community platform that powers dev.to. It offers a Rails backend with a Preact frontend, requires PostgreSQL with the pgvector extension for AI-powered feed embeddings, and supports deployment via Kamal.

Free, self-hostable reverse-engineered version of the inklewriter interactive fiction writing server, runnable with Docker Compose.

Fugu is a free, privacy-friendly, open-source product analytics platform built with Ruby on Rails. Self-hostable via Docker, it tracks and visualizes product usage data in a lightweight, no-cookie approach.

Ruby on Rails is a full-stack web application framework that follows the MVC pattern. It includes Active Record for database modeling, Action Pack for routing and controllers, Action View for templating, and additional libraries for mailers, jobs, WebSockets, file storage, and rich text handling. It enables rapid development of database-backed web applications.

Chatwoot is an open-source, self-hosted customer support platform and omnichannel help desk, positioned as an alternative to Intercom, Zendesk and Salesforce Service Cloud. It unifies live chat, email and social channels into one inbox, with an AI agent, help center, automation and reporting.

ActiveAnalytics is a mountable Rails engine that adds first-party, privacy-focused traffic analytics to a Ruby on Rails app. It uses no cookies, no JavaScript and no third parties, reporting sources, page views, entry/exit pages and browser statistics.