Qrcode Decode

QR Code Decoder reads QR codes from an uploaded image file and returns the embedded text. It supports drag-and-drop or click-to-upload, shows an image preview, and falls back from the native BarcodeDetector API to the jsQR library if the first attempt finds nothing.

1. Drag an image onto the dashed drop zone, or click the zone and pick a file (image/* only). 2. Wait for the scan to finish (a loading indicator appears). 3. Read the decoded text in the result textarea. 4. Click Copy to copy the text, or Clear to reset and scan another image.

The tool first tries window.BarcodeDetector with format restricted to "qr_code" (available in Chromium-based browsers). If BarcodeDetector is missing or finds nothing, it dynamically imports jsQR and decodes the image pixel data via a canvas. Non-image files are rejected. If no QR is detected, the tool reports "no QR found"; a thrown error surfaces as "scan failed". Multiple QR codes in one image are joined by newlines when BarcodeDetector is used.