Type a link, text, Wi‑Fi network or phone number and the code appears instantly. Everything is generated in your browser; nothing is sent to a server.
A higher level still scans when the code is worn or has a logo on top, but the pattern gets denser.
A logo covers part of the code. Use error correction Q or H, or some phones won't scan it.
#15181b#ffffffThese colors are too close; some phones may not be able to scan the code. A dark code on a light background is safest.