QR Size / Error Correction
Control the pixel size and error-correction level of a QR code before exporting.
QR & barcode Client-side qrcode parameters
Tool preview
How to use it
- 01
Enter the content.
- 02
Choose a size and error level.
- 03
Download the PNG.
Limitations
- ! Higher error correction makes the code denser, which can be harder to scan at small print sizes.
- ! Upscaling a small export does not add real detail; export at the final size.
FAQ
What size do I need for print?
At least 2 centimetres wide for a phone to scan comfortably.
What does error correction do?
It adds redundancy so the code survives smudges or a partially covered area.
Is there a maximum size?
The browser canvas limit, usually a few thousand pixels per side.
Files never leave your device
Processing happens in your browser using the File API, WebAssembly and Web Workers. There is no upload endpoint.
Technical details
- Processing
- Client-side
- Implementation
- qrcode parameters
- Category
- QR & barcode
- Network requests
- None while processing