Barcode Generator

The Barcode Generator creates Code 128, EAN-13, or UPC-A barcodes from your data, with a live preview, automatic check-digit calculation, and PNG or SVG download. It is for retail, inventory, and logistics users producing scannable codes.

Barcodes must follow exact rules to scan, and check digits are easy to miscalculate. Generating them locally computes the check digit for you and keeps your product data private.

1. Choose the barcode standard: Code 128, EAN-13, or UPC-A.
2. Enter the data the barcode should encode.
3. The check digit is computed automatically where the format needs one.
4. Review the live preview.
5. Download the barcode as a PNG or SVG.

• Code 128, EAN-13, and UPC-A support
• Automatic check-digit calculation
• Live preview
• PNG and SVG download

• Labelling products for retail with EAN-13 or UPC-A
• Encoding internal SKUs with Code 128
• Generating barcodes for inventory tracking
• Producing scannable labels for shipping

• Use SVG for printed labels so the barcode stays sharp at any size.
• Keep adequate quiet space around the barcode so scanners can read it.
• Print in high contrast — dark bars on a light background — and test with a real scanner.

• Entering the wrong number of digits for EAN-13 or UPC-A, which the format strictly requires.
• Adding a check digit manually when the tool already computes it, producing an invalid code.
• Printing a barcode too small or low-contrast to scan reliably.