QR code generator and scanner

Decode video DISPLAY: FPS, CAMERA: FPS, DECODE: FPS INPUT: unknown

Statistics

Frame timing (ms; min/max/mean session, median/p95 rolling 10s x 60fps)
Category	Last	Min	Max	Mean	Median	P95
All	—	—	—	—	—	—
Hit	—	—	—	—	—	—
Miss	—	—	—	—	—	—

Decoded:

Library version Frame format Resolution Camera FPS Computer vision mode Crop to square Decode all Max effort Async decode Draw failed Draw decoded Log decoded Capture camera video

Decode a QR code from a photo or screenshot (uses slow, high-accuracy mode).

Choose image… Debug

Text or URL to encode into QR

Error correction

VideoFrame format self-test

Running…

Unsupported means the browser did not preserve the constructed source format. Fallback pass means the requested conversion was unavailable, but the production native fallback remained exact and decoded successfully.

Path	Requested	Browser source	Scanner input	Luma differences	Decoded	Result