Which formats can the Barcode Reader detect?

It asks the browser to detect Code 128, EAN-13, UPC-A and QR Code where supported.

Why do some browsers fail to read?

Detection relies on BarcodeDetector; browsers without that API show a compatibility message.

Read barcode images locally in the browser

Runs locally in your browser; input is never uploaded

Encoding & Security

Select barcode imageClick to select or drag files here

Upload a barcode image and run. Supported browsers detect and output barcode content locally.

1.
Which formats can the Barcode Reader detect?
It asks the browser to detect Code 128, EAN-13, UPC-A and QR Code where supported.
2.
Why do some browsers fail to read?
Detection relies on BarcodeDetector; browsers without that API show a compatibility message.