Free Barcode Generator

Create professional, scan-ready barcodes instantly. Generate CODE128, CODE39, EAN-13, UPC-A, and more.

Barcode Preview
123456789012
Scan-ready barcode
12 characters entered
CODE 128
Universal, high-density
CODE 39
Alphanumeric
EAN-13
Products (13 digits)
EAN-8
Small packages (8 digits)
UPC-A
US Products (12 digits)
ITF-14
Shipping (14 digits)
2.0
100px
16px
Your generated barcodes will appear here

Free Online Barcode Generator - Create Professional Barcodes

Our free Barcode Generator allows you to create professional, scan-ready barcodes instantly. Generate CODE128, CODE39, EAN-13, EAN-8, UPC-A, and ITF-14 barcodes for products, inventory, shipping, and labeling purposes. All barcodes are generated locally in your browser for maximum privacy.

What is a Barcode and Why Use One?

A barcode is a machine-readable representation of data in a visual pattern. Barcodes are used worldwide for inventory management, retail checkout, shipping tracking, asset management, and much more. Our generator creates standard-compliant barcodes that work with all commercial barcode scanners.

Supported Barcode Types

Key Features of Our Barcode Generator

How to Use This Barcode Generator

  1. Enter your barcode data (numbers or text depending on type)
  2. Select the appropriate barcode type for your use case
  3. Customize the appearance using the options panel
  4. Click "Generate Barcode" to create your barcode
  5. Download the barcode as a PNG image for printing or digital use
  6. Test your barcode with a scanner to ensure readability

Frequently Asked Questions

Will these barcodes actually scan?

Yes! Our barcode generator uses the industry-standard JsBarcode library which creates fully compliant barcodes. All generated barcodes follow official specifications and should work with any standard barcode scanner.

What's the difference between CODE128 and CODE39?

CODE128 is more compact and can encode all ASCII characters, making it ideal for logistics and packaging. CODE39 is simpler, supports alphanumeric characters only, and is widely used in industries like automotive and healthcare. CODE128 is generally preferred for new applications.

Can I use these barcodes for commercial products?

For EAN-13, EAN-8, and UPC-A barcodes used on retail products, you need to obtain official numbers from GS1 (the barcode standards organization). Our generator can create the barcode image once you have the valid number. For internal use (inventory, asset tracking), you can use any data.

What file format should I download for printing?

PNG format is recommended for most uses. It provides high quality with transparent background, making it suitable for both digital use and professional printing. For vector-based printing (like professional label printing), you may need to use specialized barcode software.

How do I test if my barcode will scan properly?

You can test barcodes using: 1) A physical barcode scanner, 2) Barcode scanner apps on your smartphone, or 3) Online barcode verification tools. We recommend printing a test copy at the intended size and testing with your actual scanning equipment.

What's the maximum data length for barcodes?

Different barcode types have different limits: CODE128 can encode up to 255 characters, CODE39 up to 43 characters, EAN-13 is fixed at 13 digits, EAN-8 at 8 digits, UPC-A at 12 digits, and ITF-14 at 14 digits. Our tool enforces these limits to ensure scanability.