About Gaphor


The documentation is up to date for Gaphor 2.25.1

Gaphor is a UML and SysML modeling application written in Python. It is designed to be easy to use, while still being powerful. Gaphor implements a fully-compliant UML 2 data model, so it is much more than a picture drawing tool.

You can use Gaphor to quickly visualize different aspects of a system as well as create complete, highly complex models.


Gaphor is 100% Open source, available under a friendly Apache 2 license. The code and issue tracker can be found on GitHub.

What are you waiting for? Let’s get started!

For download instructions, and the blog, please visit the Gaphor Website.

Did you know Gaphor has excellent integration with Sphinx and Jupyter notebooks?