Offline file transfer via animated QR codes

Your file

Drop a file here or browse files on your device Any file type · up to 500 MB · no uploads

Color mode two payloads per square

Four colors carry two payloads per square. Select four colors on the receiver too. Keep the color patches in view; start with a lower QR version.

Display size maximum width

Pixels per code.

QR size grid dimensions

Larger versions carry more data per code. Use a larger display size to keep them readable. Version 1 cannot fit a transfer header.

Error correction ECC level

Higher ECC can recover more damaged data, but fits fewer file bytes per code. Changing ECC starts a new transfer; reset the receiver.

Frame rate frames / second

Start at 15 or 30 FPS. Faster needs a matching screen and camera.

Codes per frame squares on screen

Settings are saved on this browser.

Select a file to prepare its QR codes

1 code / 30 FPS / 224 pxFrame 0000

Start the camera to begin receiving.

Recovery progress 0 File Not detected

Receiver color mode