It all started when I saw an extremly complex QR-code for a simple URL. I wondred why they did not use a URL shortener for the QR code so that the code was much simpler and easier to scan.
I then wanted to create a service where you see the difference as you type. The result can be seen here; a QR-code generator that creates codes as you type.
This is a service that lets you create QR codes easy and at the same time clearly displays the complexity of the code. Clicking on the generated QR image changes the error correction level which also demonstrates the complexity.
Feel free to use this service to either generate your QR codes (but you need to download them to use them, they cannot be hotlinked) or simply to generate a code for a piece of data you want to transfer to your smartphone!