I wrote about stylised qr codes before but not many simple online interfaces were live back then. Well sure enough couple of months later this change big time.
Most recent I found, and which is quite simple and intuitive to use is QR Diffusion. It does still have some bugs – generated codes not working all the time – but still is useful and simple tool.
Well, yes, it does exactly what you are thinking of …
QR Diffusion helps you turn ordinary QR codes into artful designs. It uses Stable Diffusion and ControlNet to do so, and is build on a solid and simple UI interface for everyone to use and understand.
This tool creates unique, scan-friendly QR patterns.
You can personalize your code with logos, adjust dot styles, and select from a variety of AI templates, including anime and landscapes.
It’s user-friendly; input details, customize, and get a special QR code quickly.
The website also offers tutorials and support.
Some examples