QR Code Decoder - Free Online | FunToolX
Use QR Code Decoder online for free, no download required. FunToolX offers hundreds of fun online tools.
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, PDF417, Aztec and other formats. If there are multiple QR codes in the picture, all of them 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 patterns. Camera scanning uses the getUserMedia API to obtain 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. It is more convenient to copy results 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.