webtrees

webtrees is a self-hostable online genealogy application written in PHP that lets you publish, share, and collaborate on family trees through any modern web browser. It reads GEDCOM files — typically exported from desktop genealogy software like Gramps — and turns them into a polished, accessible website for your family.

webtrees is designed to be the hub of your genealogy work online: it supports interactive charts, geographic mapping, source citations, DNA match tracking, multiple trees per installation, fine-grained access control, and a large library of themes and modules. Because you self-host it, your family data stays under your control and is not locked behind a subscription wall.

webtrees is licensed under GPL-3.0 and is a popular open alternative to subscription genealogy services such as Ancestry.com and MyHeritage.