Hey, it's Mike....

We gave commercialization a try. It was an incredible experience, but it didn’t generate the resources needed to sustain PySimpleGUI at the level we had hoped. In February 2025, we announced that PySimpleSoft would be shutting down, with support continuing through the end of 2025.

That process is now complete. The next question was what to do with the code, documentation, and repositories. I always planned to keep the repos available for reference—so the decision came down to the software itself.

I’ve released the PySimpleGUI 5 code as open source. After removing licensing and security components, it’s now available under the LGPL3 license on GitHub and PyPI.

To install the latest version (v6):

python -m pip install PySimpleGUI

If you need the older version (4.60.5.1):

python -m pip install PySimpleGUI==4.60.5.1

The GitHub repo has the most up-to-date code. You can install directly without cloning:

python -m pip install --upgrade https://github.com/PySimpleGUI/PySimpleGUI/zipball/master

Or clone/download the repo and install locally:

python -m pip install .

I’m still wrapping up the transition from version 5 to 6, including the docs. After that, I’m honestly not sure what the long-term future looks like—but if the past 8 years are any indication, I’m not great at predicting it.

For now, I’m here and happy to help.

PySimpleGUI has been a once-in-a-lifetime experience. It’s been amazing to see what people have built and to be a small part of it. Thanks to everyone who supported the project over the years.