1 Best Open Source GitHub Alternatives

GitHub is a hosted platform for Git repositories, used for storing source code, reviewing changes through pull requests, tracking issues, and running CI/CD pipelines through GitHub Actions. It is the most widely used code hosting service, with a large ecosystem of integrations, bots, and third-party tools built around it.

Organizations look for open-source alternatives to GitHub mainly to keep source code on infrastructure they control, which matters for regulated industries, government contracts, or companies with strict data residency requirements. Cost is also a factor for larger teams on paid plans, and some prefer self-hosting to avoid depending on GitHub's availability and policies for something as central as their code.

Gitea is a common lightweight option for this. It is a self-hosted Git service with pull requests, issue tracking, and a web interface that resembles GitHub's, but it is built to be lightweight and runs comfortably on modest hardware, unlike some heavier self-hosted Git platforms. It covers the core Git hosting and collaboration workflow well, though its plugin and integration ecosystem is smaller than GitHub's.

Before migrating, check whether Gitea supports the specific CI/CD approach your team relies on, since GitHub Actions workflows do not run natively on Gitea and need to be replaced with Gitea Actions or an external CI tool. Plan the repository migration itself, including issues, pull request history, and wiki content, since not everything transfers automatically. Also consider your team's dependency on GitHub-specific integrations like third-party apps or bots, since equivalents may not exist for a self-hosted platform.