QR Code Generator

Drag and Drop an image below, or click on it to open file dialog

Embedded text:
https://skal65535.github.io/QR
Generate QR Code

Error correction:	Low (7%) Medium (15%) Quartile (25%) High (30%)
QR size:	Auto 1 2 3 4 5 6 ___ 7 8 9 10
Background:	Image Noise None
Pixel size:	1 x 1 2 x 2 3 x 3 4 x 4
Dithering:	Diffusion Ordered Random None
Gray levels:	2 4 16 All (256)
Luminosity:	dark normal light
Alpha cutoff:	(off) low mid high (controls transparent areas)

Original idea by Xiong Bin. See also this paper, as mentioned by E. Haines.