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40×30 mm barcode labels
Create 40×30 mm barcode label PDFs from a saved product list.
40 × 30 mm
Custom 40×30mm product labels. Not an official Coupang issuing or approval tool. Check registered barcodes and current receiving requirements. Does not replace shipment box labels.
Draft and list are saved on this device in this browser. No account sync. Clearing site data or private browsing can remove them. Files and product data are not sent to our server.
Add products, then create a preview.
Print on 40×30mm paper at 100% / actual size, no margins, headers or footers. Print and scan one label first.
How to use
- Paste barcode, product and quantity columns from a spreadsheet, or import CSV/TSV.
- Edit your list and select barcode format and printer resolution.
- Preview, download the PDF or print at actual size on 40×30mm stock.
How it works
Each PDF page is 40×30mm and repeats according to quantity. CODE128 accepts letters, digits and hyphens. EAN13 requires 13 digits with a valid checksum. This tool renders existing identifiers; it does not issue new product IDs.
Common questions
Where is my list saved?
In IndexedDB in this browser. It restores on reload but does not sync across devices. Back up as CSV before clearing site data.
Why did Excel remove leading zeros?
Format the barcode column as text before pasting. Zeros already lost or numbers changed to scientific notation must be recovered from the source.
Is this an official Coupang label?
No. Verify registered identifiers, product names and receiving requirements. This custom product label does not replace official shipment box labels.
What print settings should I use?
40×30mm paper, 100% / actual size, no margins, headers or footers. Test one label with your scanner.
What if text is too long?
Names must fit two lines. Oversized names and barcodes stop generation instead of being truncated.