QR code generator with logo
Upload your logo once and stamp it into every QR code in the batch. Error correction switches to H automatically, and the size slider warns you before the logo eats too much of the code.
1 Your data
0 rows · 0 ready
2 Code type & look
3 Preview & export
First 0 of 0. Everything is generated in your browser.
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How a logo fits inside a working QR code
A QR code stores your data twice over: the message itself plus Reed–Solomon error-correction codewords. When part of the pattern is covered, a scanner uses those extra codewords to rebuild what's missing. Level H spends about 30% of the code's capacity on that recovery data, which is what makes room for a logo.
The catch is that recovery is shared with real-world wear: scratches, glare, a crease in the flyer. A logo covering 25% leaves only a thin margin. You can see exactly where the limit sits, and try it with a real decoder, in the error correction explainer.
Rules that keep branded codes scannable
- Keep the logo in the centre. The three big corner squares (finder patterns) must never be covered.
- Stay dark-on-light. Brand colours are fine if they're dark enough: the generator flags contrast below 3:1.
- Short URLs make bigger modules, which leaves more room around the logo.
- Print one proof and scan it with two different phones before the full run.