function loadExample(upc, supplement) { document.getElementById('upc-input').value = upc; document.getElementById('supplement-input').value = supplement; generateBarcode(); } UPC-A Barcode Generator with 5-Digit Supplement

🏷️ UPC-A Barcode Generator

Pro Tip: Enter your 11 or 12 digit UPC-A code and optional 5-digit supplement. We'll calculate the check digit if needed!

Enter a UPC-A code above to generate your barcode! 📊