qrcodeDesigned QR codes and their scans

A QR code, designed and checked

Type what it opens, choose a style, download. Every design is read back by two QR readers before you print it.

What it opens

A link

Change where it leads after printing, and see its scans: dynamic codes come with Pro, free for ANBIs. For ANBIs

Style

Colour

Shape

Shape

Eyes

Frame
Centre

Colour

45°
0

Logo

PNG, JPEG, WebP or SVG. It stays on this device. A PDF is drawn by our server, which keeps nothing; so is a PNG when this browser cannot draw one itself.

22%
1

Cut-out

Details

4

An example: type what it opens.

scans Read back by the readers at 3 pixels a module, softened as a phone camera sees it.

The weakest block needed 0% of its error correction.

    version 2 · 25 × 25 modules · level M · 88% full

    → 1023 px

    Checked before you print

    Each design is drawn small and soft, as a phone camera sees a printed code, and read back by two QR readers: the ZXing detector most Android readers grew from, and zxing-cpp's, which many current ones run. What they sample is compared with what was drawn, codeword by codeword, against what each block's error correction can repair.

    A logo is cut out of the modules, not laid over them. Of the eight masks, the one that leaves the fewest dark modules under it is chosen, and what the logo costs is counted block by block.

    A static code is yours

    A code made here opens what it carries directly. Nothing of ours sits between the code and its scan: it works for as long as what it opens does, and nobody counts who scans it.

    Free for ANBI organisations

    Organisations in the Belastingdienst's ANBI register get what a paid account gets, free: dynamic codes and their scans, saved designs, codes in bulk and the API. Checked with an email address at your organisation's own domain.