Barcode Number Validator

Paste barcode data to inspect compatible symbologies and verify GS1 or ISBN check digits when applicable.

Barcode data

—Compatible formats and check-digit status appear below.

How to use this Barcode Number Validator

Validate common UPC, EAN, GTIN, ITF-14, ISBN, Code 39, and Codabar data. Enter your values above and the result is calculated directly in your browser. No account is required.

Fast answer, clear inputs

This tool is built around one job: give the answer quickly without forcing a signup or hiding the result. Related tools are linked nearby when the next calculation or conversion is useful.