GTIN-14 Validator
Verify and validate your GTIN-14 barcodes instantly. Check format, checksum, and get detailed validation results.
Paste or type a 14-digit GTIN code to validate
Try These Examples
How GTIN-14 Validation Works
Length Check
GTIN-14 must be exactly 14 digits long.
Format Validation
All characters must be numeric (0-9).
Checksum Calculation
The last digit is calculated using the GS1 algorithm and verified against the provided checksum.
Validation FAQ
What does a valid GTIN-14 look like?
A valid GTIN-14 is a 14-digit number where the last digit is a checksum calculated from the first 13 digits using the GS1 algorithm.
Why is my GTIN showing as invalid?
Common reasons include: incorrect length (not 14 digits), non-numeric characters, or incorrect checksum digit.
Can I validate multiple GTINs at once?
Currently, you can validate one GTIN at a time. Simply clear the input and enter a new code to validate another.