Dev
UPC Generator
Creates or validates UPC-A codes. Enter an 11-digit base to compute the GS1 check digit, or paste a 12-digit UPC to verify. For testing and mockups — retail shelf use requires licensed GS1 company prefixes.
Frequently asked questions
What is a UPC check digit?
The 12th digit computed from the first 11 so scanners can catch typos.
Can I use a random UPC in stores?
No. Real retail UPCs need a GS1 company prefix you license. This tool is for demos and tests.
UPC-A vs EAN-13?
UPC-A is 12 digits (common in the US). EAN-13 is 13 digits and is common internationally.
Does this draw a barcode image?
It produces the digit string and can render a simple barcode graphic for screenshots.
Related to your barcode tool?
Yes. Pair this with the barcode generator when you need other symbologies.