Independent tool for small-brand packaging teams

Barcode Check Digit

Validate GTIN check digits before printing product labels.

01 / Inputs

Work through your case

Edit the fictional example or add a line. Your entries stay in this browser tab.

02 / Review2 results

Result sheet

Ready

PAPER

Expected digit 1; supplied 1.

Hold

FABRIC

Expected digit 1; supplied 2.

Worked example

How the check works

Method and source

Supports 8, 12, 13 or 14 digits. A correct check digit alone does not establish registration or product ownership.

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.

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Optional paid service

Make it fit your shop

€99 for a scoped audit of up to five public pages. Scope and acceptance criteria are agreed before invoicing.

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