Open Source Ruby Projects
Ruby is a dynamic, general-purpose programming language designed for readable, expressive code. Its concise syntax and flexible object-oriented features help developers build web applications, automate tasks, process data, and create command-line tools. Ruby is also used for scripting and prototyping, where straightforward code can make ideas easier to test and maintain.
Open source Ruby tools include web frameworks, libraries, developer utilities, testing tools, and application templates. When choosing one, review its license, documentation, release history, maintenance activity, supported Ruby versions, and compatibility with your existing systems. Consider runtime and deployment requirements as well as the size and activity of its user community. These tools can serve individual developers, teams maintaining web applications, and organizations building or extending software with Ruby.
3 repositories · updated October 4, 2026
postcard: Create a Personal Website and Newsletter
Postcard is a self-hostable Rails app for publishing a personal website, blog posts, and an integrated newsletter. It suits people who want an owned online presence and mailing list instead of relying on social media.
ubicloud: Build and Manage a Cloud on Bare Metal
Ubicloud is a Ruby-based cloud control plane for provisioning compute, networking, and storage on bare-metal providers. It suits teams seeking a portable, self-managed alternative to public cloud infrastructure, as well as developers using its managed service.
discourse: Run an Online Community Discussion Platform
Discourse is a self-hostable platform for forums and community conversations, with topic discussions, chat, themes, and plugins. It suits organizations that want control over their community software and hosting.