GTIN Barcode Validator
Check GTIN-8, 12, 13, 14-digit product numbers, or calculate the last digit check code.
GTIN Barcode Validator User manual
- Fill in the parameters or select the file according to the form, and check the unit and format first.
- Check 6901234567892 product number.
- Click the processing button to view the results, you can copy or download and save.
Calculation method and processing rules
Alternately weights 3 and 1 from the rightmost data bit, and finds the modulo 10 check bit.
scope of use
Do not check the authenticity of the product or registration information; please keep the leading zero, and do not accept the scientific counting format.
Will the input content be saved on the server?
This tool handles input in the browser, and does not upload files or form content. Typing practice scores are only saved in the native browser.
Why may the result be different from other tools?
Do not check the authenticity of the product or registration information; please keep the leading zero, and do not accept the scientific counting format. Please compare the input unit, rounding method, applicable rules and data version first.