How to use: Code 39 Barcode Generator

Description

Create industrial Code 39 barcodes from letters, digits and - . $ / + % — the wide, rugged symbology used on asset and inventory labels.

• barcode
• Because everything is computed client-side, Code 39 Barcode Generator is safe to use with sensitive data such as API keys, tokens or private logs.

How to use

Using Code 39 Barcode Generator takes three steps:

1. Paste your data into the input box (or load the example).
2. Configure the options to match your target format or scenario.
3. Copy, download or inspect the output — it updates live as you type.

Run

Examples

Code 39 accepts upper-case letters, digits and - . $ / + %; the * start/stop characters are added for you.

Input

ROBOT-42

Output

<div class="bc-out" style="text-align:center"><svg aria-bc-name="code39" xmlns="http://www.w3.org/2000/svg" viewBox="0 0 340 142" width="340" height="142" class="bc-svg" role="img" aria-label="CODE39 barcode: ROBOT-42" shape-rendering="crispEdges" style="max-width:100%;height:auto"><rect x="0" y="0" width="340" height="142" fill="#ffffff"/><g fill="#000000"><rect x="10" y="10" width="2" height="100"/><rect x="18" y="10" width="2" height="100"/><rect x="22" y="10" width="6" height="100"/><rect x="30" y="10" width="6" height="100"/><rect x="38" y="10" width="2" height="100"/><rect x="42" y="10" width="6" height="100"/><rect x="50" y="10" width="2" height="100"/><rect x="54" y="10" width="2" height="100"/><rect x="58" y="10" width="6" height="100"/><rect x="70" y="10" width="2" height="100"/><rect x="74" y="10" width="6" height="100"/><rect x="82" y="10" width="2" height="100"/><rect x="86" y="10" width="6" height="100"/><rect x="94" y="10" width="2" height="100"/><rect x="102" y="10" width="2" height="100"/><rect x="106" y="10" width="2" height="100"/><rect x="110" y="10" width="6" height="100"/><rect x="118" y="10" width="2" height="100"/><rect x="126" y="10" width="2" height="100"/><rect x="130" y="10" width="6" height="100"/><rect x="138" y="10" width="6" height="100"/><rect x="146" y="10" width="2" height="100"/><rect x="150" y="10" width="6" height="100"/><rect x="158" y="10" width="2" height="100"/><rect x="166" y="10" width="2" height="100"/><rect x="170" y="10" width="2" height="100"/><rect x="174" y="10" width="2" height="100"/><rect x="178" y="10" width="6" height="100"/><rect x="186" y="10" width="6" height="100"/><rect x="198" y="10" width="2" height="100"/><rect x="202" y="10" width="2" height="100"/><rect x="210" y="10" width="2" height="100"/><rect x="214" y="10" width="2" height="100"/><rect x="218" y="10" width="6" height="100"/><rect x="226" y="10" width="6" height="100"/><rect x="234" y="10" width="2" height="100"/><rect x="238" y="10" width="2" height="100"/><rect x="246" y="10" width="6" height="100"/><rect x="254" y="10" width="2" height="100"/><rect x="258" y="10" width="6" height="100"/><rect x="266" y="10" width="2" height="100"/><rect x="270" y="10" width="6" height="100"/><rect x="282" y="10" width="2" height="100"/><rect x="286" y="10" width="2" height="100"/><rect x="290" y="10" width="6" height="100"/><rect x="298" y="10" width="2" height="100"/><rect x="306" y="10" width="2" height="100"/><rect x="310" y="10" width="6" height="100"/><rect x="318" y="10" width="6" height="100"/><rect x="326" y="10" width="2" height="100"/></g><text x="170" y="130" font-size="20" text-anchor="middle" fill="#000000">ROBOT-42</text></svg>
<div class="tb-btns bc-actions">
  <button class="btn btn-primary" data-bc-act="png">Download PNG</button>
  <button class="btn" data-bc-act="svg">Download SVG</button>
  <button class="btn" data-bc-act="copy">Copy SVG</button>
  <button class="btn" data-bc-act="print">Print</button>
</div></div>
<table 
…

This output was produced by actually running the tool, not written by hand.

Use cases

Common situations where Code 39 Barcode Generator helps:

• Create industrial Code 39 barcodes from letters, digits and - . $ / + % — the wide, rugged symbology used on asset and inventory labels.

Parameters

This tool has no options — it works on the input alone.

FAQ

Good to know

• Everything runs client-side, so extremely large inputs are limited by your browser tab’s memory rather than by a server upload limit.

Related tools

Code 39 Barcode Generator → · barcode →