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Gramps is a desktop genealogy program for building and researching family trees, built with Python and GTK.

Open-source alternative to:Ancestry

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What is it?

Gramps is a genealogy program aimed at both hobbyist family historians and professional genealogists. It is written in Python and uses GTK 3 for its graphical interface, so it runs as a desktop application rather than a web service.

The program covers the core genealogy workflow: recording people, families, events, places, sources, notes and media, and viewing them in several views. Reports can be generated through Graphviz for charts and through Narrative Web for publishing a family tree online. Map support in the Geography view depends on the optional osmgpsmap package, and Exif metadata in media files can be managed when gexiv2 is installed.

The project depends on several optional libraries for extra features such as spell checking in notes, locale-aware sorting through PyICU, and archiving family tree revisions with RCS. Third-party addons extend it further, and translations are maintained on Hosted Weblate.

Key features

  • 01Records people, families, events, places, sources and media in one family tree.
  • 02Generates charts with Graphviz and publishes family trees as Narrative Web pages.
  • 03Shows places on a map in the Geography view when osmgpsmap is installed.
  • 04Manages Exif metadata in media files with gexiv2.
  • 05Archives family tree revisions with RCS.
  • 06Supports third-party addons and translated interface languages.

Use cases

  • Researching and documenting a personal or family genealogy on a desktop computer.
  • Producing printed or web-published family tree reports for relatives.
  • Maintaining a long-running research database with versioned backups.
  • Extending genealogy workflows with community-written addons.

Quick start

  1. 1

    Read the INSTALL file for build instructions

  2. 2

    Install Python 3.10 or greater, GTK 3.24 or greater and pygobject 3.12 or greater

  3. 3

    Install the recommended packages such as Graphviz and PyICU for full functionality

Things to know

  • Requires GTK 3 and pygobject, which can make installation harder on some systems.
  • Several features need optional packages such as osmgpsmap for maps and Graphviz for graph reports.

In collections

Desktop GUI apps & toolkits

Topics

#genealogy#family-tree#python#gtk#desktop-app#research#gramps

FAQ

What is gramps?
Gramps is a desktop genealogy program for building and researching family trees, built with Python and GTK. Gramps is a genealogy program aimed at both hobbyist family historians and professional genealogists. It is written in Python and uses GTK 3 for its graphical interface, so it runs as a desktop application rather than a web service.
Is gramps free to use? What license does it have?
gramps is open source under the GPL-2.0 license. Check the license terms before using it in commercial products.
Is gramps still maintained?
Actively maintained. The last commit to gramps was on Oct 27, 2026.
What can I use gramps for?
Researching and documenting a personal or family genealogy on a desktop computer. Producing printed or web-published family tree reports for relatives. Maintaining a long-running research database with versioned backups. Extending genealogy workflows with community-written addons.
How do I install gramps?
Read the INSTALL file for build instructions Install Python 3.10 or greater, GTK 3.24 or greater and pygobject 3.12 or greater Install the recommended packages such as Graphviz and PyICU for full functionality
Where can I get gramps?
The source code and installation instructions are on GitHub: https://github.com/gramps-project/gramps

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