GTIN Validator

Validate GTIN/EAN barcode numbers with check digit verification for all formats including GTIN-8, GTIN-12, GTIN-13, GTIN-14, EAN-8, and EAN-13.

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About This Tool

This GTIN/EAN Validator tool allows you to verify the validity of barcode numbers used in global trade. It supports all common GTIN (Global Trade Item Number) and EAN (European Article Number) formats including GTIN-8, GTIN-12 (UPC-A), GTIN-13 (EAN-13), GTIN-14, EAN-8, and EAN-13. The tool performs check digit validation using the standard Luhn algorithm (Modulo 10) to ensure the barcode numbers are correctly formatted and mathematically valid. Simply enter one or multiple barcode numbers to validate them instantly.

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How to Use

Enter GTIN/EAN numbers in the input field (one per line or comma-separated)
Select the validation type (automatic detection or specific format)
Click the 'Validate GTIN/EAN' button
View detailed validation results including format, check digit status, and validity
For invalid codes, see specific error messages and suggestions

Frequently Asked Questions

Find Quick Answers

What is GTIN/EAN validation?

GTIN/EAN validation verifies that barcode numbers follow the correct format and have a valid check digit calculated using the Luhn algorithm (Modulo 10). This ensures the numbers can be properly scanned and processed in retail systems.

Which barcode formats does this tool support?

The tool supports GTIN-8 (8 digits), GTIN-12/UPC-A (12 digits), GTIN-13/EAN-13 (13 digits), GTIN-14 (14 digits), EAN-8 (8 digits), and EAN-13 (13 digits) formats. It can automatically detect the format or you can specify it manually.

What is a check digit?

A check digit is the last digit of a barcode number calculated from the preceding digits using a mathematical formula (Luhn algorithm/Modulo 10). It helps detect errors in data entry or scanning.

Can I validate multiple barcode numbers at once?

Yes, you can enter multiple GTIN/EAN numbers separated by commas, spaces, or new lines. The tool will validate each one individually and display results for all codes.

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