Qt is a cross-platform application framework that is widely used for developing application software that can be run on various software and hardware platforms with little or no change in the underlying codebase, while having the power and speed of native applications.
Cost / License
- Freemium (Pay once)
- Open Source
Platforms
- Mac
- Windows
- Linux
- BSD


Qt is the most popular Windows, Mac & Linux alternative to Tk.
Qt is the most popular Open Source & free alternative to Tk.
- Qt is Freemium and Open Source








































