GTK is a multi-platform toolkit for creating graphical user interfaces. Offering a complete set of widgets, GTK is suitable for projects ranging from small one-off tools to complete application suites.
Cost / License
- Free
- Open Source
Platforms
- Mac
- Windows
- Linux
- Chrome OS




GTK is the most popular Windows, Mac & Linux alternative to PyQt.
GTK is the most popular Open Source & free alternative to PyQt.
- GTK is Free and Open Source














































