SKU generator
About this tool
Create sequential product SKUs with a prefix, zero-padding, and an optional GS1 check digit. Copy the list or CSV, then continue to the barcode tool or bulk codes to print labels.
SKU generator
Build a sequence of product codes, then turn them into barcodes.
How it works
Three quick steps — then download or copy. Each tool page includes tips and FAQs.
Set the prefix and range
Add a brand or category prefix, choose the starting number and how many codes you need, and set the digit padding.
Add a check digit (optional)
Append a GS1-style mod-10 check digit to the numeric part when you need retail-style validation.
Copy the list or make barcodes
Copy the list or CSV, open the first code in the barcode tool, or send the batch to bulk barcodes when you are signed in.
Frequently asked questions
How many SKUs can I generate?
Up to 100 codes per run in your browser. Copy them all, or send a batch to bulk barcodes after you sign in.
What does the check digit do?
It appends a GS1 mod-10 digit calculated from the padded number. This is useful when codes must scan reliably in retail workflows.
Is this tool free?
Yes. It is free to use in your browser, with no sign-up.
Is my data uploaded to your servers?
No. SKUs are generated in your browser. Creating a bulk barcode ZIP requires a free account when you hand off the batch.
Can the prefix contain letters?
Yes. Prefixes can include letters and symbols. The sequence number and the optional check digit stay numeric.