Browse free open source Genealogy software and projects below. Use the toggles on the left to filter open source Genealogy software by OS, license, language, programming language, and project status.

  • Gen AI apps are built with MongoDB Atlas Icon
    Gen AI apps are built with MongoDB Atlas

    The database for AI-powered applications.

    MongoDB Atlas is the developer-friendly database used to build, scale, and run gen AI and LLM-powered apps—without needing a separate vector database. Atlas offers built-in vector search, global availability across 115+ regions, and flexible document modeling. Start building AI apps faster, all in one place.
    Start Free
  • Our Free Plans just got better! | Auth0 Icon
    Our Free Plans just got better! | Auth0

    With up to 25k MAUs and unlimited Okta connections, our Free Plan lets you focus on what you do best—building great apps.

    You asked, we delivered! Auth0 is excited to expand our Free and Paid plans to include more options so you can focus on building, deploying, and scaling applications without having to worry about your security. Auth0 now, thank yourself later.
    Try free now
  • 1
    Ancestris

    Ancestris

    Java Extensible Genealogy program

    Ancestris is a genealogy program written in Java. It works under any operating system, Windows, Linux, MacOS. Ancestris is developed under GNU General Public License. Ancestris is a genealogy software that closely respects the GEDCOM 5.5 standard which will allow you to work on files that are reliable and that you can exchange and share without losing data. In addition to the editors (Ancestris comes with two editors: a GEDCOM editor and a standard one), it offers many views like tree view, geographic view, chronological view, browsers, tables: individuals, families, etc.. and numerous reports. It offers an opportunity to expand its capabilities and adapt it to your needs and desires thanks to plugins.
    Downloads: 9 This Week
    Last Update:
    See Project
  • Previous
  • You're on page 1
  • Next