The scanner supports QR codes, barcodes (EAN-13, EAN-8, UPC-A, UPC-E), Code 128, Code 39, DataMatrix, and Aztec codes. It uses the ZXing library for robust, accurate code detection from both camera input and uploaded images, making it a versatile all-in-one scanning solution.

The QR & Barcode Scanner works fully offline after the initial page load. All code processing happens entirely in your browser using client-side JavaScript — no data is sent to any server. This makes it perfect for scanning codes in areas with limited or no internet connectivity.

Yes, in addition to live camera scanning, you can upload images containing QR codes or barcodes from your device's gallery. The tool will automatically detect and decode any codes present in the uploaded image, supporting PNG, JPG, and other common image formats.

The QR scanner is 100% safe and privacy-first. All scanning is done client-side — no data is transmitted to any server. Scan history is stored only in your browser's local storage and can be cleared at any time. No personal data, camera footage, or scanned content is collected or shared.

Yes, the QR scanner includes flashlight/torch toggle for scanning in low-light conditions and front/rear camera switching for convenience. These features work on mobile devices and tablets that support the WebRTC camera API, providing a seamless mobile scanning experience.