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QR Scanability and Payload Checker

Check whether a QR render decodes and show practical design risks. A pass is not certification for every camera or printer.

This tool processes selected files in your browser.

Accepted: image/png, image/jpeg, .png, .jpg, .jpeg. Desktop cap 15 MiB per file.

Test sizes

Comma-separated pixel sizes.

Grayscale testGrayscale test

Contrast checkContrast check

Simulate blur px

Report

How it works

Processing stays in this browser tab. Source files are not uploaded. Export is a new copy; originals are not overwritten.