Serial Number Barcode Generator

Serial Number Barcodes: Frequently Asked Questions

How do I make barcodes with sequential serial numbers?

Open Generate a numbered sequence in the bulk panel, type the first serial number in Start at, choose how many you need, and add a prefix or suffix if your serials have one. Fill the list, check the preview, then download all of them at once as PNG or SVG files in a ZIP, or as one PDF.

How do I keep leading zeros?

Type them into the start value. Start at 0001 and every number is padded to four digits: 0001, 0002, and so on up to 9999. If the sequence runs past the width, the longer numbers are written in full rather than cut off, and the tool tells you so.

Which barcode type should I use for serial numbers?

Code 128 for most labels: it takes letters, digits and symbols, and stays compact. Choose Code 39 if an older scanner or system asks for it; it holds uppercase letters, digits and a few symbols, and lowercase letters are converted to uppercase for you. If your sequence is product numbers rather than serials, pick UPC-A or EAN-13 and enter the numbers without their last digit: the generator adds the check digit to each one.

How many can I make at once?

Up to 500 per batch. For more, download the first batch, then start the next sequence where the last one ended. There is no account and no daily limit.

Can I count by more than one, or count down?

You can count up in any step from 1 to 1,000,000, so 1000, 1010, 1020 works. Counting down is not supported.

Can I print them on label sheets?

The PDF puts one barcode on each page, with the page the size of the barcode, which suits roll label printers. For sheets of labels, download the PNG or SVG files and place them with your label software.