ZXing decoder

Free online tool to decode QR codes and barcodes from images, camera, or URLs

Request Feature / Support

5,996+

Total Calculations Run

< 15ms

Browser Execution Speed

100%

Client-Side Privacy

4.9 / 5.0

User Satisfaction

Worked Example & Common Values

Below is a sample worked calculation demonstrating how ZXing decoder processes input data instantly inside your browser.

Sample Input Minified string: {"id":1,"status":"active","roles":["admin"]}

Computed Result

{
  "id": 1,
  "status": "active",
  "roles": [
    "admin"
  ]
}

Execution Mode Client-Side In-Browser JS

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About This Tool

The ZXing Decoder is a powerful online tool that allows you to decode QR codes and various barcode formats instantly. Simply upload an image containing a barcode, use your device's camera to scan directly, or enter a URL of an image with a barcode. The tool supports multiple formats including QR Code, Code 128, EAN-13, EAN-8, UPC-A, UPC-E, Code 39, and more. All processing happens entirely in your browser - no data is sent to external servers, ensuring complete privacy and security for your scanned codes.

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How to Use

Choose your input method: Upload an image file, use camera capture, or enter an image URL
For file upload: Click the upload area or drag & drop an image containing a barcode/QR code
For camera: Click 'Use Camera' and allow camera access, then point at the code
For URL: Enter a direct image URL containing a barcode
Click 'Decode Barcode' to process the image
View the decoded results including barcode type, content, and format details

Frequently Asked Questions

Find Quick Answers

What barcode formats does this tool support?

The tool supports QR Code, Code 128, EAN-13, EAN-8, UPC-A, UPC-E, Code 39, Code 93, ITF, and most common 1D/2D barcode formats.

Is my data secure when using this decoder?

Yes, all processing happens entirely in your browser using JavaScript. No images or data are sent to external servers, ensuring complete privacy.

Can I decode barcodes from my phone's camera?

Yes, the tool supports camera capture on mobile devices and computers with webcams. Simply click 'Use Camera' and allow camera access.

What image formats are supported for upload?

The tool supports JPEG, PNG, GIF, BMP, and WebP image formats. The image should clearly show the barcode or QR code.

Why can't the tool decode my barcode image?

Ensure the image is clear, well-lit, and the barcode is not distorted. Try adjusting the angle or lighting, or use a higher resolution image.

Need to run multiple calculations?

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