Barcode Generator

Generate Code 39 barcodes instantly in your browser. No upload, no account — download as PNG for free.

Supported characters: A–Z, 0–9, space, - . $ / + %

Product CodeSerial NumberInventory IDAsset TagHello World
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Instant Preview

Barcode updates live as you type — no button press needed

100% Private

All rendering happens in your browser. No data is ever sent to a server.

Fully Customizable

Choose bar width, height, and any foreground or background color

Code 39 Standard

Industry-standard barcode format used in manufacturing, retail, and logistics

About Code 39 Barcodes

Code 39 (also called Code 3 of 9) is a variable-length, discrete barcode symbology that encodes uppercase letters, digits, and a handful of special characters. It is one of the oldest and most widely deployed 1D barcode formats.

Common Uses

  • • Inventory and asset tracking
  • • Product labeling
  • • Serial number encoding
  • • Healthcare patient ID
  • • Government / military ID

Supported Characters

A–Z   0–9   space

-   .   $   /   +   %

Lowercase input is automatically converted to uppercase.

Frequently Asked Questions