If you want your UPC barcode to be usable by retailers such as Amazon, Walmart, Best Buy, and others, your barcode number will need to be registered inside GS1. is your best bet for buying barcode numbers that are already registered in GS1. To generate your unique UPC barcode, please enter your 12-digit UPC barcode number into the field below:

A random number made-up on the spot will not work for generating a unique UPC barcode. In order to receive a 12-digit UPC barcode, the barcode number your input must come from a recognized GS1 barcode vendor such as

Need to purchase unique, GS1-registered barcodes?
Amazon, and many other major retailers, require products to have a barcode that is registers in the GS1. There’s no need to worry about this, as you can easily get your barcodes and register your products in GS1 at the same time when you get your barcodes from All you need to do is provide us the number of unique UPC barcodes that you require. You will need a unique barcode for each individual product, as well as any variations of that product such as size/color/flavor/etc. Buy your barcodes online right here at or give us a call at 888-446-2633. It takes almost no time at all, and you’ll have your new UPC barcodes in high-resolution JPEG format ready to go in your inbox.

Why did the far right number of my UPC barcode number change?
The digit at the far right of any UPC barcode, officially known as the Check Sum digit, is actually an automatic summation of the previous 11 digits. If you noticed that your far right digit changed after you generated your barcode, it’s likely that some user error took place when inputting your barcode number. The algorithm that generates your UPC barcode will automatically give you the correct the Check Sum digit in order for your UPC barcode number to be considered legitimate.

What is a UPC Barcode?
UPC stands for Universal Product Code. At its most basic, it is a string of 12 numbers attached to a single product that isn’t shared with any other product anywhere in the world. UPC barcodes are registered with a company called GS1, which is well-known and officially recognized by most major retailers. is an authorized seller of UPC barcodes that are registered with GS1. No one else in the entire world shares the UPC barcode that you have, which makes it simple to identify. There isn’t any information stored in a UPC barcode; it’s simply there for quick identification of products.

How do UPC barcodes work?
Once your product is tied to a UPC barcode, retailers can register it into their own inventory management system. When a customer goes to buy your product, the retailer will be able to quickly scan and identify what the product is based on your unique UPC barcode. Because every UPC code is unique, the inventory management system can’t malfunction and pull up something else erroneously.

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