Barcode Scanner Online — Scan UPC, EAN, ISBN & More Free

ScanApp's barcode scanner reads all major 1D and 2D barcode formats directly in your browser. Scan product barcodes to look up items, ISBN codes on books to find prices, shipping labels, and retail barcodes — no app required. Works on iPhone, Android, PC, Mac, and Chromebook.

ScanApp is a free, open-source web-based QR code and barcode scanner. Scan QR codes with your webcam or upload an image file — no install, no signup, no ads. Works on Windows, macOS, Android, iOS, Linux, and ChromeOS. Scanning is done locally on your device for full privacy.

Supported codes

QR Code, Aztec, Code 128, Code 39, Code 93, Codabar, Data Matrix, EAN-13, EAN-8, ITF, PDF417, UPC-A, UPC-E, MaxiCode, and RSS-14.

How to scan a barcode online

Open scanapp.org/barcode in your browser, grant camera permission, and point your camera at the barcode. ScanApp reads UPC, EAN, Code 128, ISBN, Data Matrix, and more. You can also upload an image file or screenshot of a barcode from your device.

Barcode types explained

• EAN-13 / EAN-8 — grocery and retail products (international).
• UPC-A / UPC-E — US retail products.
• Code 128 — shipping labels and logistics.
• ISBN — books. See the ISBN scanner & book lookup.
• Code 39 — industrial and automotive.
• Data Matrix — electronics and medical devices.
• QR Code — URLs, contacts, and WiFi. Use the QR code scanner.

Frequently Asked Questions

How do I scan a product barcode online?

Open scanapp.org/barcode in any modern browser, allow camera access, and hold the barcode in front of your camera. ScanApp decodes the number instantly and copies it to your clipboard. You can also upload a photo of the barcode.

What is the difference between a QR code and a barcode?

A barcode is a 1D pattern of vertical lines that encodes a short number — typically a product ID. A QR code is a 2D matrix that can store URLs, text, WiFi credentials, contacts, and more. ScanApp reads both.

Can I scan a barcode to check the price?

Yes. Scan the EAN or UPC barcode at scanapp.org/barcode to get the product code, then look it up on Amazon, Walmart, or Google Shopping. For books, use the ISBN scanner for direct price comparisons.

How do I scan an ISBN barcode?

Use the dedicated ISBN scanner at scanapp.org/isbn. It reads ISBN-13 and ISBN-10 barcodes on book back covers and looks up the title, author, and edition automatically.

What barcode formats does ScanApp support?

QR Code, Aztec, Code 128, Code 39, Code 93, Codabar, Data Matrix, EAN-13, EAN-8, ITF, PDF417, UPC-A, UPC-E, MaxiCode, and RSS-14.

Can I scan a barcode from an image or photo?

Yes. Click the upload option on scanapp.org/barcode and select any photo or screenshot of a barcode from your device. Decoding is done locally in your browser.

Does barcode scanning work on iPhone?

Yes. Open scanapp.org/barcode in Safari on iPhone or iPad, grant camera permission, and point it at the barcode. No app required.