UPC Checker

Validate UPC and EAN barcodes instantly. Check single codes or upload files for bulk validation with detailed results.

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26,448+

Total Calculations Run

< 15ms

Browser Execution Speed

100%

Client-Side Privacy

4.9 / 5.0

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About This Tool

The UPC Checker is a comprehensive online tool for validating UPC (Universal Product Code) and EAN (European Article Number) barcodes. It supports UPC-A (12-digit), UPC-E (8-digit compressed), and EAN-13 (13-digit) formats. Enter a single code manually or upload a CSV/TXT file with multiple codes for bulk validation. The tool performs real-time checksum verification, format validation, and provides detailed results including validity status, barcode type, and checksum details. All processing is done client-side for fast, secure operation without server calls.

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How to Use

Enter a UPC/EAN code in the text field (e.g.,
or click 'Upload File' to select a CSV/TXT file with one code per line.
Optionally toggle 'Validate in real-time' for instant feedback as you type.
Click 'Validate UPC' to check the code(s).
View results in the table below, showing validity, type, and checksum details.
Use 'Clear All' to reset the tool for new checks.

Frequently Asked Questions

Find Quick Answers

What UPC/EAN formats does this tool support?

It supports UPC-A (12 digits), UPC-E (8 digits), and EAN-13 (13 digits). Other formats like EAN-8 or ISBN are not validated.

How does the checksum validation work?

The tool calculates the check digit using the standard MOD-10 algorithm (Luhn algorithm variant) and compares it to the last digit of the barcode to ensure accuracy.

Can I check multiple codes at once?

Yes, upload a CSV or TXT file with one barcode per line (no headers). The tool will process up to 1000 codes in a single batch.

Is my data sent to a server?

No, all validation is performed entirely in your browser using JavaScript. No data is transmitted externally, ensuring privacy.

Need to run multiple calculations?

Create a free account today to unlock unlimited daily runs, access advanced parameters, save your history, and request custom features.

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