Offline Barcode Scanner – Private Installable PWA
Install a private barcode and QR scanner that decodes on your device and works offline after its first load. No account and no image uploads.
The scanner is an installable Progressive Web App. Its decoding libraries are cached after the first successful load, so supported camera and image scans can continue without a network connection.
How to use it
- Open the scanner once while connected to the internet.
- Use the browser Install button or Add to Home Screen command.
- Launch the installed app from your home screen or applications list.
- Scan normally; results and history remain on this device.
Offline and privacy behavior
- Barcode decoding runs locally with ZXing, Quagga2 and jsQR.
- Camera frames and selected images are not uploaded for decoding.
- Scan history is stored only in browser storage until you clear it.
- Browser permissions still control camera access.