Two rules for QR codes that actually scan
Contrast: dark code on a light background. Inverted colors (white code on black) look stylish and fail on many scanners — this tool lets you pick colors, but physics votes for dark-on-light. Error correction: level M (default) survives minor damage; pick Q or H if the printed code will get scratched, dirty or have a logo placed over its center — H tolerates up to 30% damage. And the golden rule, stated on the tool itself: test-scan every code with your own phone before printing a hundred copies. More content means a denser code — long vCards need bigger print sizes to stay scannable.
Frequently Asked Questions
Do these QR codes expire?
No. These are static QR codes — the content is encoded in the pattern itself, forever. (Codes that "expire" belong to paid services that route through their own redirect links; direct codes like these cannot expire.)
Can I put my logo in the middle?
Not in this tool — but choose error correction H, and you can carefully place a small logo over the center afterwards in an image editor; test-scan the result.
Is my Wi-Fi password safe?
It never leaves your browser — the generator runs locally. Remember the printed QR itself shows the password to anyone who scans it, so place it where only guests see it.
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