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Test QR Code Scannability

Upload a QR image and test decoding at full size, reduced size, lower contrast and light blur before printing or publishing.

Select a QR image

QR image

The image stays in your browser. Results are a screening test and do not guarantee every device or printed condition.

Test QR code scannability in four conditions

Decode an uploaded QR at original size, downscaled, lower contrast and light blur. Use it as a preflight check before printing or publishing.

Choose a QR image.
Run the resilience check.
Use failed conditions to revise margin, color, decoration or logo size.

What this QR code test does not prove

QR performance also depends on camera, print size, material and lighting. Treat automatic verification as a preflight check and test important uses on real devices.

What to know before using it

A QR image can decode perfectly while pointing to an unsafe destination. This tool helps inspect payload and basic scan robustness; it does not certify the destination.

Common failure points

Short URLs hide the final destination.
Inspect look-alike domains and misleading subdomains.
Be especially cautious with QR codes requesting payment, login or personal data.

Practical example

Before publishing a poster QR, test several scan conditions and visually inspect the URL host before opening it.