QR Code Decoder - Free Online | ToolXHub
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QR Code Decoder
Upload a QR image or use your camera to scan. Copy the result with one click — all recognition happens locally.
About this tool
QR Code Decoder is a free online tool. Decode QR codes from an image or your camera and copy the result with one click.
Upload pictures (including QR codes) or authorize camera scanning, and the tool will automatically detect and decode the QR code content. Supports QR code, data matrix, PDF 417, Aztz and other formats. If there are multiple QR codes in the picture, all QR codes will be decoded and listed. Decoding results can be copied.
QR code decoding uses JavaScript libraries such as jsQR or ZXing to complete image processing and decoding on the browser side. Image pre-processing includes steps such as gray scale, binarization and finding positioning modes. Camera scanning uses the getuserMedia API to capture video streams and detect them frame by frame.
It is suitable for quickly reading QR code content, especially QR code pictures received on the computer. Copying results is more convenient than scanning the code on your mobile phone. It is also used to debug whether the generated QR code is correct.
QR code decoding tool, which reads QR code content from pictures or cameras, supports batch decoding and multiple QR code formats.