How to Generate Barcodes Online
When to use common barcode formats, and why in-browser generation helps privacy.
CODE128 fits mixed alphanumeric data; EAN-13 / UPC are retail codes that need the correct digit length and checksum.
This tool draws barcodes with JsBarcode in your browser — nothing is uploaded.
Export PNG for documents/web, or SVG for crisp print scaling.
Batch mode generates one barcode per line for bulk export.