[9] It is developed in Python using PyGObject and utilizes Graphviz to create relationship graphs.

[10][11] Beyond human family trees, the software has been used to create animal pedigree charts[12] and academic genealogies that map mentoring relationships among scientists, physicians, and scholars.

Gramps XML is a free format, and its files are usually compressed using gzip.

Users may rename the file extension .gramps to .gz for editing the content of the genealogy document with a text editor.

[9] The following table shows a selected history of new feature releases for project.