RunFreeTools

Barcode Generator

Last updated: May 24, 2026

Create CODE128, EAN and UPC barcodes.

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Barcode Generator is a free online tool to create CODE128, EAN and UPC barcodes. It runs entirely in your browser, so your files never leave your device — nothing is uploaded. There's no sign-up, no watermark, and it works on any modern browser on desktop or mobile.

How to use Barcode Generator

This free barcode generator creates scannable barcodes in popular retail and logistics formats including CODE128, EAN-13 and UPC. Enter your data, adjust the size, and download the result as a PNG or a scalable SVG ready for labels and packaging. Barcodes are rendered in your browser, so the values you encode never leave your device.

Read the full guide: Barcode Generator Guide: Create CODE128, EAN and UPC

  1. 1Choose your barcode format, such as CODE128, EAN-13 or UPC.
  2. 2Enter the number or text you want to encode and adjust the size.
  3. 3Download the barcode as a PNG or SVG for printing or your label software.

Popular formats

Generate CODE128, EAN-13 and UPC codes for retail, inventory and shipping use.

PNG and SVG export

Pick PNG for quick use or SVG for sharp, scalable output on printed labels.

Private generation

Codes are created in your browser, so product numbers and data stay on your device.

Barcode Generator — frequently asked questions

Which barcode format should I use?

Use EAN-13 or UPC for retail products that need standardized codes, and CODE128 for flexible internal use like inventory or shipping labels where you encode your own data.

Why does EAN-13 need a specific number of digits?

EAN-13 and UPC are fixed-length retail standards with a built-in check digit. If your input has the wrong number of digits, the code will not validate, so follow the format's length rules.

Will the barcode scan reliably?

Yes, as long as you print it at adequate size and contrast with enough quiet space around it. Exporting as SVG helps keep edges crisp so scanners read it cleanly.

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