Barcode Validator

GTIN-8 · UPC-A · EAN-13 · ITF-14 — check digit verification

Enter barcode number

Paste any 8, 12, 13, or 14-digit retail/logistics barcode. Works with or without the check digit.

GTIN-8

Small package barcodes, 8 digits

GTIN-12 / UPC-A

US/Canada retail products, 12 digits

GTIN-13 / EAN-13

Global retail + book ISBNs, 13 digits

GTIN-14 / ITF-14

Shipping cartons, 14 digits

The GS1 mod-10 algorithm weights alternate digits (×3, ×1) from the right, sums them, and computes the digit that makes the total a multiple of 10.