A QR code decoder online allows users to extract the information encoded in a QR code without needing a physical scanner or mobile device. By uploading an image of a QR code to the decoder’s web interface, the tool processes the image, reads the dot matrix, and returns the embedded information. Such online platforms are especially useful when working on desktops or when physical scanning isn’t feasible. However, users should exercise caution when decoding unfamiliar QR codes to avoid potential security threats or unwanted content. Read more: Codexcoach