Validate EAN-8, EAN-13, UPC-A and GTIN-14 barcode numbers with their checksum online.
Validate a product barcode number. The tool recognises EAN-8, UPC-A (12), EAN-13 and GTIN-14 by length and verifies the check digit.
EAN-8, UPC-A (12 digits), EAN-13 and GTIN-14 — the GS1 family used on retail products worldwide.
It is the last digit, computed from the others with alternating 3/1 weights, so scanners catch misreads.