Webtrees is the web's leading online collaborative genealogy application.
License: GPL-3.0. Website: https://www.webtrees.net. Source: https://github.com/fisharebest/webtrees.
See official install docs: https://github.com/fisharebest/webtrees/releases/latest
Self-hosting gives you three things SaaS can’t: data ownership (the files live on disks you control), cost predictability (a one-time setup vs. recurring per-seat fees that grow with your household or team), and longevity (open-source means the app keeps working even if the maintainers move on, since you can pin a working version). The trade-off is that you take on the operational work of running a server, applying updates, and handling backups.
Approximately 100MB of disk space for the application files, plus whatever is Small systems (500 individuals): 16–32 MB, 10–20 seconds Medium systems (5,000 individuals): 32–64 MB, 20–40 seconds
Last verified: 2026-04-21