Barcode Generator Online

If you manage retail inventory or are prototyping a physical product, generating a quick barcode shouldn't require buying expensive commercial software. This Barcode Generator to create scannable, industry-standard barcodes directly in your browser, for free.

Built on Client-Side Technology

This tool uses the open-source JsBarcode library to draw these directly onto an HTML canvas. This means that when you type in a proprietary product SKU or an internal tracking ID, it never touches my servers. The barcode image is rendered on your device's memory, ensuring complete privacy.

Choosing the Right Format

Not all barcodes are created equal. If you type letters into an EAN-13 barcode, it will fail to render because EAN-13 only accepts 13 numbers. Here's a quick cheat sheet:

• UPC-A & EAN-13: Use these strictly for retail products intended to be scanned at a traditional store checkout.
• Code 128: This is the developer's favorite. It supports letters and numbers, is highly compact, and is perfect for internal inventory, shipping labels, and custom systems.

Best Practices for Scanning

When you export the PNG from this tool, make sure you print it with high contrast. Scanners rely on the stark difference between the black bars and the white background. Resist the urge to make the bars too thin or too short, as physical laser scanners will struggle to read them.