GTIN check digit calculator
LabelCraft - barcode labels for Shopify that print at exactly the size you set.
Every label prints at the size you set - measured, not approximate.
Overflow or a missing barcode always raises a visible warning before you print.
Modules snap to your printer's dots, so codes stay crisp and scan first time.
We never overwrite or reassign a product's existing barcode.
Enter a UPC-A, EAN-13, EAN-8 or GTIN-14 below. This tool recomputes the check digit, tells you whether the code is valid, flags restricted (non-retail) prefixes, and suggests a correction when a digit is wrong.
Check a barcode
8, 12, 13 or 14 digits. Spaces and hyphens are ignored.
Enter a barcode above to check its check digit.
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