About BarcodeGen

BarcodeGen is a fast, modern barcode generator that runs entirely in your browser. There are no accounts, no uploads, and no server processing — every barcode is generated locally on your device.

Privacy first

BarcodeGen is 100% client-side. The barcode data you enter never leaves your browser — it is processed entirely by JavaScript running on your device. We do not collect, store, or transmit any barcode values.

  • No account or signup required
  • No barcode data is uploaded or stored
  • Works offline after the page has loaded
  • Open-source barcode rendering via JsBarcode

Supported formats

EAN-13

13-digit European Article Number for retail products worldwide

UPC-A

12-digit Universal Product Code for North American retail

Code 128

High-density alphanumeric for shipping and logistics

Code 39

Alphanumeric format widely used in automotive and defense

ITF-14

14-digit format for outer cartons and shipping containers

Codabar

Numeric format used in blood banks and libraries

Technology

BarcodeGen is built with Next.js and uses JsBarcode for barcode rendering. Barcodes are generated as SVG elements directly in the browser. PNG downloads are produced by drawing the SVG onto an HTML5 Canvas element — no server involvement.