Scan barcodes directly from your camera or by uploading an image. Detects UPC, EAN, Code 128, and more offline. Perfect for users needing a barcode scanning.
Click "Start Camera" to scan via webcam/phone camera.
Alternatively, drag and drop a barcode image into the upload box.
The tool will automatically detect the format and decode the text.
Copy the result to your clipboard.
No. The scanning logic runs completely locally in your browser to ensure privacy.
Most barcode scanning tools require you to download an app, create an account, or deal with paywalls. Our web-based scanner works directly in your browser — point your camera at a barcode, or upload a photo of one, and get the result within seconds.
You don't need to install anything. On mobile, it accesses your rear camera (the better one for reading barcodes). On desktop, it works with a connected webcam or lets you upload an image file.
The scanning process involves two separate challenges:
1. Finding the barcode in the image Before decoding, the scanner needs to figure out where in the image the barcode actually is. This involves looking for patterns of high contrast lines or modules in the image. Modern algorithms can find barcodes at angles, partially occluded, curved (like on a can), and in high-glare environments.
2. Decoding the barcode pattern Once the barcode region is located, the scanner reads the widths of the bars and spaces (for 1D codes) or the grid pattern (for 2D codes) and translates them into data according to the relevant standard.
Our tool uses a JavaScript implementation of the ZXing library — the same open-source library used in many Android apps — running entirely in your browser.
1D (Linear) Barcodes:
2D (Matrix) Codes:
Getting a clean scan the first time comes down to a few things:
Distance: Hold your camera 15–25 cm from the barcode. Too close and the whole barcode won't fit in frame. Too far and the bars become indistinct.
Steadiness: Motion blur is the most common cause of failed scans. Hold still for half a second after framing the barcode.
Lighting: Natural daylight or white indoor light works well. Avoid scanning under very yellow incandescent light or in situations where harsh light creates a glare over the barcode surface.
Angle: While algorithms can handle some tilt, scanning flat-on (perpendicular to the barcode) is fastest and most reliable.
Damaged barcodes: Most barcode formats include error correction, so a barcode with minor scratches or damage can still be read. A barcode that's missing more than 30–40% of its printed area usually can't be recovered.
Sometimes you need to read a barcode from a screenshot, a product image, or a document. Instead of the camera mode, use the image upload option:
This is particularly useful for:
When a barcode is successfully read, you'll see:
Raw data: The decoded text value. For most retail codes this is a number (the GTIN). For QR codes and Code 128, it can be any text.
Format: Which barcode type was detected.
Useful links: For GTINs, we provide a quick search link to look up the product in open product databases like Open Food Facts or the GS1 registry.
History: Previous scans in your current session are saved locally (never uploaded) so you can compare multiple codes.
Price checking and product research: Scan a barcode in a physical store to look up reviews, compare prices online, or check nutritional information for food products.
Inventory and logistics: Quickly read shipping labels, package tracking numbers, and warehouse bin labels without needing a dedicated scanner device.
Authenticating documents: ID cards, boarding passes, and some official documents contain barcodes with encoded data. Scanning these reveals the raw data they contain.
Debugging barcode printing: If you're generating barcodes for your own product or application, scan the output to verify it encodes correctly before printing at scale.
To help users find exactly what they are looking for, this tool is also optimized for searches like: barcode scanning, barcode reader online camera, scan barcode online, scan this barcode.
Your data never leaves this device. All processing is handled locally by JavaScript.
Upload Barcode Image
PNG, JPG up to 5MB
Scan using Camera
