Barcode Generator

Generate high-quality Code 128 and Code 39 barcodes instantly in your browser. Download as PNG for free.

Your generated barcode will appear here.
โŒ Invalid data for the selected barcode format.

What is a Barcode Generator?

A barcode generator is a digital tool that converts numbers, letters, or a combination of both into a scannable machine-readable image of parallel lines. These 1D (one-dimensional) barcodes are universally used in retail, inventory management, logistics, and shipping to quickly identify products and track items.

Supported Open-Standard Formats

  • Code 128 (Highly Recommended): The most versatile and widely used open format. It supports all 128 ASCII characters (numbers, uppercase/lowercase letters, and symbols) and compresses data very efficiently. It is the industry standard for internal inventory, local POS systems, and logistics tracking.
  • Code 39: An older alphanumeric format. It's easy to use but takes up more physical space than Code 128 and only supports uppercase letters, numbers, and a few special characters. Ideal for simple, legacy internal tracking systems.

Data Privacy & Security

Unlike many other tools that generate barcodes on a remote server, The Encoded Box utilizes local JavaScript rendering. Your proprietary item numbers, product codes, and serial numbers are processed 100% securely inside your browser and are never transmitted over the internet.

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