What should it open?

Style

Colour

Always on a white background. Dark on light scans best.
Advanced

Corners

Rounds the corners of the white box. Outside the curve is see-through in the PNG and SVG. The code itself is never trimmed.

Damage tolerance

Higher levels still scan when the print is scuffed, but make the code busier. Medium suits screens, High suits rough printing.

PNG size

For print, download the SVG instead. It stays sharp at any size.

Your code

Test-scan it with a phone before you send it to print. Nothing you type is uploaded, saved or tracked: the code is drawn in this page.