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Validate common GTIN lengths with the standard modulo 10 check digit rule.
GTIN validation
Valid13 digits enteredGTIN validation is a math check, not a registry lookup. It is still useful because a failed check digit almost always means the number was copied, typed, or padded incorrectly.
You can validate GTIN-8, GTIN-12, GTIN-13, and GTIN-14 values.
No. It only checks the number's final digit. Ownership and assignment must be confirmed through your official records or issuer.
Common causes include a mistyped digit, missing leading zero, wrong length, or a number copied from the wrong product level.
No. It checks the GTIN math rule only. It does not connect to a product registry or prove that the number belongs to a specific product.
GTIN-12 is the 12-digit format behind UPC-A, used mainly in North America. GTIN-13 is the 13-digit format behind EAN-13, used internationally. You can convert GTIN-12 to GTIN-13 by adding a leading zero.
No. Validation only checks the math. To confirm that a GTIN is officially registered and belongs to a specific company, use the GS1 Verified by GS1 service or check your own GS1 account records.
Yes, it is a good first step. A failed check digit means the number has a typo or formatting error. But passing validation does not guarantee the marketplace will accept it. Platforms like Amazon also verify ownership through the GS1 database.
Calculate or validate the last digit used by many retail barcode numbers.
Generate EAN-13 barcode artwork for retail products, with check digit validation built in.
Generate UPC-A barcode artwork for US and Canadian retail product labels.
Generate ITF-14 barcodes for outer cartons, master cases, and warehouse labels.