GTIN Validator
Validate any GTIN or calculate the check digit for a new one. Supports GTIN-8, GTIN-12, GTIN-13, and GTIN-14.
Enter a GTIN-8, GTIN-12, GTIN-13, or GTIN-14 to validate.
The GS1 check digit uses a weighted sum algorithm (alternating x1 and x3 from right to left) to detect transcription errors. A single wrong digit will always be caught.
Have a valid GTIN? Generate a QR code for it.
Use our free QR code generator to create a GS1 Digital Link QR code from your GTIN — or sign up to host a live resolver that makes the code scannable.
Related tools and guides
GTIN Check Digit Calculator
Calculate a check digit and see the full GS1 algorithm step by step.
How to Create a GS1 Digital Link QR Code
Step-by-step guide from getting your GTIN to printing the final code.
GS1 Digital Link vs Traditional Barcode
Why barcodes carry a number but Digital Links carry a URL — and what that changes.
What Is a GTIN?
GTIN formats, where they come from, and how they work.
GS1 Company Prefix Guide
How to get a company prefix and assign GTINs to your products.