Do I need to download or install an app to scan barcodes?

No app download is required! Offline Barcode Reader runs directly in your web browser on iPhone, Android, Windows, and Mac without taking up storage space.

Is it safe to scan private gift card vouchers or coupons on this website?

Yes, 100% safe. Traditional scanners upload photos to external cloud servers where voucher numbers could be logged or stolen. Offline Barcode Reader decodes all barcodes locally in your device memory so your images and barcode numbers never leave your device.

Does this barcode scanner work offline without an internet connection?

Yes! As a Progressive Web App (PWA), once you load this page, you can turn on Airplane Mode or disconnect from Wi-Fi and continue scanning barcodes anytime, anywhere.

How do I scan a barcode from a screenshot or saved photo?

Click the "Upload Image" button, choose a photo or screenshot from your gallery, and use our cropping tool to frame the barcode. The result will appear instantly.

Can I scan multiple barcodes at once?

Yes. Switch to "Scan All" mode at the top to detect and capture multiple barcodes in a single camera frame or image, then export all results to CSV.

What barcode formats are supported?

We support all major 1D and 2D formats including QR Code, EAN-13, EAN-8, UPC-A, UPC-E, Code 128, Code 39, Data Matrix, PDF417, Codabar, and ITF.

Scan Barcode from Image – Free Online Barcode Reader

Upload a photo, crop the barcode, and read QR, EAN, UPC, Code 128, PDF417 and other formats locally in your browser. No image upload to a server.

This workflow is designed for screenshots, saved photos, product labels, shipping labels, and images containing more than one code.

How to use it

Open the scanner and choose Image Upload.
Select or drag a JPG, PNG, WebP, GIF, or BMP image.
Crop closely around the barcode you want to read, then scan.
Copy the result or keep it in local scan history.

Image scanning tips

Keep the full barcode and its blank quiet zone inside the crop.
Rotate sideways photos before scanning.
For an image with several codes, crop and scan each target separately.
The image is decoded on this device and is never sent to our server.

Open the free scanner