Does this barcode scanner upload my camera photos or images to a server?

No. Offline Barcode Reader executes 100% on-device inside your browser using WebAssembly (WASM) and local JavaScript. Camera streams and photos are decoded locally and never leave your device.

Can I use this barcode scanner offline without an internet connection?

Yes. As a Progressive Web App (PWA), all WebAssembly binaries and application code are cached locally. Once loaded, you can scan barcodes in offline mode, airplane mode, or low-connectivity locations.

Which barcode and QR code formats are supported?

Supported 1D and 2D barcode formats include QR Code, EAN-13, EAN-8, UPC-A, UPC-E, Code 128, Code 39, Codabar, ITF, Data Matrix, PDF417, and Aztec.

Is it safe to scan mobile gift vouchers, coupons, or boarding passes on this online scanner?

Yes, 100% safe. Traditional online scanners send your uploaded photos to cloud servers where third-party logs could expose gift coupon numbers or boarding pass details. Offline Barcode Reader processes 100% of image pixels locally in your browser memory so your vouchers and private details never leave your device.

Terms of Service

By accessing or using Offline Barcode Reader, you agree to these Terms of Service. Please read them carefully.

AdSense & Privacy Policy Notice

Offline Barcode Reader is provided free of charge for personal and commercial barcode scanning operations. All decoding runs client-side.

1. Acceptance of Terms

By using this web application (Offline Barcode Reader), you accept and agree to be bound by these Terms of Service. If you do not agree to these terms, please refrain from using the application.

2. Scope of Service & Client-Side Architecture

Offline Barcode Reader is a web-based utility designed for 100% on-device decoding of barcodes and QR codes using WebAssembly and client-side JavaScript. We do not transmit, record, or host your camera streams or uploaded image files on any external server.

3. Acceptable Use Policy

You agree to use this application only for lawful purposes. You must not attempt to disrupt the web application, reverse-engineer proprietary components, or transmit malicious code. Scanning barcodes for inventory management, asset tracking, personal organization, or commercial verification is permitted.

4. Intellectual Property & Open Source Licenses

The user interface, design, and original source code of Offline Barcode Reader are protected by copyright. Open-source libraries used (ZXing, Quagga2, jsQR, Astro, SolidJS) are credited under their respective open-source software licenses.

5. Disclaimer of Warranties & Limitation of Liability

Offline Barcode Reader is provided 'AS IS' and 'AS AVAILABLE' without warranties of any kind, either express or implied. While we strive for maximum decoding accuracy and reliability, we do not warrant that the service will be uninterrupted or error-free.

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