What are the best Address Book repositories on GitHub?

The top-ranked Address Book open source repositories include lennart-k/rustical, Intermesh/groupoffice, tracked and evaluated by community adoption, stars, and code commits.

How do I find trending Address Book open source tools?

Browse this curated Address Book directory to monitor real-time GitHub star velocity, latest code releases, and rising developer tools updated daily.

Are Address Book GitHub repositories free and open source?

Most Address Book projects listed here are distributed under open source licenses (such as MIT, Apache 2.0, or GPL). Always check individual project repositories for exact license terms.

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Address Book GitHub Repositories (2026) · Open Source Tools

Discover the best Address Book open source repositories on GitHub. Explore trending tools, live star counts, source code, and developer projects updated daily.