What does GTIN conversion do?
GTIN-8, GTIN-12 and GTIN-13 can be represented in a 14-digit field with leading zeros. Removing those padding zeros can recover a shorter representation. This does not create a new identifier for a case or other packaging level.
Which GTINs can I convert?
Enter a complete GTIN-8, GTIN-12 (UPC-A), GTIN-13 (EAN-13) or GTIN-14 with its check digit. Eight-digit input is treated as EAN-8 / GTIN-8. Use the separate UPC-E converter for compressed UPC codes. Unsupported lengths, characters and incorrect check digits are rejected.
Why are some shorter formats unavailable?
A shorter representation is available only when the removed digits are leading zeros. A nonzero GTIN-14 packaging indicator cannot be removed to create a retail identifier. Conversion preserves the original identifier and does not query a registry or establish authenticity.