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Barcode Generator

Create a clean Code 39 barcode for IDs, labels and internal reference numbers.

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Create a barcode

This tool generates Code 39. Use uppercase letters, numbers, spaces and - . $ / + %.

Preview

Your barcode will appear here.

About this tool

Create a Code 39 barcode for supported letters, numbers and symbols, then save it as SVG.

✓ Runs in your browser

How to use it

  1. Enter the barcode text.
  2. Choose the bar height.
  3. Generate and download the SVG.

Example

An internal stock reference such as USEFULFOX-123 can be rendered as a Code 39 barcode.

Frequently asked questions

Which barcode format does this use?

This tool generates Code 39.

Can every character be encoded?

No. Code 39 supports a defined set of uppercase letters, numbers and symbols.

Why download SVG?

SVG stays sharp at different print sizes.

Reviewed for UsefulFox launch preparation · August 2026

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Practical digital guidance

Barcode Generator Guide

Generate a barcode with the right data, then check it against the system that will actually read it.

Get a better result

  1. Choose a barcode format that matches your intended use rather than selecting one purely by appearance.
  2. Enter the data carefully; a readable barcode can still encode the wrong value.
  3. Test the exported barcode with the scanner, app or workflow where it will be used.

Quick example

A barcode generated for an internal stock reference can be technically valid but still unsuitable for retail distribution. Retail identifiers and supply-chain standards may require registration or a specific symbology.

Common questions

Does generating a barcode give me a retail product number?

No. Creating the graphic is different from obtaining or registering an identifier used by a retail or supply-chain system.

Why should I test the exported image?

Resizing, printing and low contrast can affect scan reliability even when the original on-screen barcode works.

Keep important originals and verify exported files or generated values in the workflow where you intend to use them.