Barcode & SKU Generator
Create SKUs from your brand, category, color and size (one at a time or for a whole line), plus a barcode for your own stock system.
Letters and numbers only; each part is trimmed to 6 characters so SKUs stay short and scannable.
Your SKU
SN-TEE-BLK-L-001Code 128 barcode for internal use: shelves, bins, packing slips and stock counts.
Branding the product itself?
Custom woven labels carry your brand name and size into every garment. They don't replace official retail barcodes.
Explore Woven Labels →SKU, barcode, UPC: what's the difference?
- SKU: your internal code, like SN-TEE-BLK-L-001. You create it, so this tool can build it for you.
- Barcode: a scannable picture of a code. The Code 128 barcode here encodes your SKU for internal scanning.
- UPC / EAN: official product numbers that big retailers and many marketplaces require. They come from GS1 (GS1 US or GS1 UK), not from this tool.
How to build a SKU system
Decide the order of parts once and stick to it. Start with a short brand prefix, then category, optional style, color and size, then a running number. Use the same abbreviations everywhere: BLK for black, not BLK on one product and BLA on the next.
Common mistakes
- Putting prices or dates in a SKU. They change, but the SKU shouldn't.
- Reusing a retired SKU for a different product.
- Making codes so long they're hard to read on a packing slip.
Selling apparel? Pair each size SKU with a matching chart from the Size Chart Generator. Pricing the new line? Check it with the Profit Margin Calculator.
Frequently asked questions
Is a SKU the same as a UPC or EAN?
No. A SKU is your own internal code for tracking stock, and you can format it however you like. A UPC (common in the U.S.) or EAN (common in the UK and Europe) is a globally unique product number that retailers and marketplaces use. Those numbers are licensed through GS1.
Can I use these barcodes on retail packaging?
These Code 128 barcodes are meant for internal use: shelves, bins, packing slips and stock counts. If a retailer or marketplace asks for a UPC or EAN, you'll need GS1-issued numbers. This tool doesn't issue them.
What makes a good SKU?
Keep it short, consistent and readable: a fixed order of parts (brand, category, color, size), letters and numbers only, and no characters that look alike, such as O and 0, where you can avoid them.
Can I make SKUs for a whole product line?
Yes. Turn on the color-and-size option, list your colors and sizes, and the tool numbers every combination. You can copy them or download a CSV for Shopify, Etsy or a spreadsheet.
Is my product data saved?
No. Everything is generated in your browser and nothing is sent to our servers.