The best open source alternative to GitHub is Gitea. If that doesn't suit you, we've compiled a ranked list of other open source GitHub alternatives to help you find a suitable replacement. Other interesting open source alternatives to GitHub are: Gogs, Harness, GitLab, and Forgejo.
GitHub alternatives are mainly Git Platforms but may also be CI/CD Platforms or PaaS & Deployment Tools. Browse these if you want a narrower list of alternatives or looking for a specific functionality of GitHub.
A lightweight, fast, and customizable Git service that simplifies code hosting and collaboration for teams of all sizes.

Gitea is a powerful, open-source Git service that puts you in control of your code. With its intuitive interface and robust features, Gitea makes version control and collaboration effortless for developers and teams.
Key benefits of Gitea include:
Whether you're an individual developer, a small team, or a large organization, Gitea provides a flexible and powerful platform for managing your Git repositories and fostering collaboration.
Looking for open source alternatives to other popular services? Check out other posts in the alternatives series and openalternative.co, a directory of open source software with filters for tags and alternatives for easy browsing and discovery.
Lightweight, cross-platform Git service for self-hosting. Easy installation, minimal requirements, runs on Raspberry Pi. 100% open source and free.

A lightweight Git service designed for effortless self-hosting on your own infrastructure. Perfect for developers and teams who want complete control over their code repositories without the complexity of traditional Git solutions.
Key advantages:
Built with Go programming language for excellent performance and portability. The software requires minimal system resources while delivering full Git functionality including repository management, user authentication, and web-based interface.
100% open source with all code available under permissive licensing. No vendor lock-in, no subscription fees, and full transparency in how your Git service operates. Ideal for small teams, personal projects, or organizations requiring private code hosting.
Streamline code delivery with an open-source CI/CD platform featuring Git integration, fast pipelines, and hosted development environments.

Harness Open Source is a comprehensive software delivery platform that empowers developers to streamline their entire development workflow. From code repositories to deployment, this open-source solution offers a centralized hub for managing your software projects.
Key features include:
Benefits:
Whether you're a small team or a large enterprise, Harness Open Source provides the scalable features needed to meet your software delivery demands while maintaining developer autonomy and efficiency.
A comprehensive AI-powered DevSecOps platform that integrates development, security, and operations, streamlining software delivery and enhancing productivity.

GitLab is the leading AI-powered DevSecOps platform, designed to revolutionize software development from planning to production. By integrating essential tools and automating key processes, GitLab empowers teams to build, secure, and deploy software faster and more efficiently.
Key features include:
Main benefits:
GitLab serves over 30 million registered users and is trusted by more than 50% of Fortune 100 companies. Recognized as a Leader by Gartner and Forrester, GitLab offers a complete solution for organizations looking to streamline their DevSecOps processes and deliver software faster without sacrificing security or quality.
Self-hosted software forge offering GitHub-like features with minimal resources. Easy installation, low maintenance, and 100% free software for secure project management.

Take control of your software development with a self-hosted forge that prioritizes simplicity and performance. This lightweight alternative to GitHub offers familiar collaboration features while keeping your projects under your complete ownership.
Key advantages include:
Built for collaboration, the platform focuses on user experience designed for productivity. Whether you're managing personal projects or coordinating team development, you get essential forge features including issue tracking, pull requests, and project management tools.
Future-focused development emphasizes federation and decentralized collaboration, positioning your forge for next-generation software development workflows. The inclusive community behind the project ensures democratic governance and transparent development practices.
Perfect for developers, teams, and organizations seeking reliable self-hosted Git management without the complexity and resource overhead of enterprise solutions.