How do I validate GTIN check digits before printing product labels?
Supports 8, 12, 13 or 14 digits. A correct check digit alone does not establish registration or product ownership.
Open Barcode Check DigitTry the worked example
These are the example inputs from Barcode Check Digit. Replace them in the tool to run your own case.
| SKU | GTIN digits |
|---|---|
| PAPER | 4006381333931 |
| FABRIC | 4006381333932 |
Example result
FABRIC · Hold · Expected digit 1; supplied 2.
Who uses this?
Small-brand packaging teams. The free online tool runs the calculation in your browser. To edit the files and use the tools offline in one business, see the €49 offline edition.
Where the idea came from
Benchcraft adapted the reviewed merchant catalog readability audit idea for small-brand packaging teams. The rules and fictional example here were created for this tool.
Original video