Barcode Generator
Generate CODE128, CODE39, EAN-13, and UPC-A barcodes.
🔒 Runs entirely in your browser — nothing is uploaded.
How Barcode Generator works
How does the barcode generator work?
It renders your text into a scannable barcode using the JsBarcode JavaScript library (loaded from a CDN), drawing directly into an inline SVG element as you type. You can switch between CODE128, CODE39, EAN-13, and UPC-A formats, and the tool shows an error if your input doesn't fit the rules of the format you picked - for example, EAN-13 needs a specific number of digits.
When would I use this?
It's useful for generating a barcode label for a small inventory system, printing a product code for a mockup, or creating a scannable code for a personal cataloging project. The "Download PNG" button converts the SVG to a canvas and saves it as an image file you can drop into a document or label template.
Does the barcode data get sent anywhere?
No - generation happens entirely in the browser via the JsBarcode library, so the value you type never reaches this site's server. One thing worth knowing: JsBarcode itself is fetched from a third-party CDN (jsdelivr), so the page does depend on that external script loading successfully.