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Barcode Generator – Create Barcodes (EAN, UPC, Code128)

Generate barcodes in multiple formats including EAN-13, UPC-A, Code128, and Code39 with customization and validation.

🟢 Runs locally · no uploads
Barcode Data12 characters
Syntax: text

lightbulbQuick Examples

info
Tip: Code 128 is versatile for general use. EAN-13 for retail products. Code 39 for inventory tracking.
Barcode Details

Output will appear here

Format: text

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› About this tool · FAQ

Stop buying barcode generation software! Create barcodes in 10+ formats including Code128, Code39, EAN-13, UPC-A, ITF-14, and more with validation, customizable styling, and multiple output formats. Perfect for retail, inventory, shipping, and product labeling. Free, works offline, unlimited barcode generation.

How do I generate a barcode?

Enter your data (text, numbers, or product codes), select barcode format (Code128, EAN-13, UPC, etc.), customize appearance (colors, size, text), and click Generate. Download as PNG, SVG, or get Base64 data URL instantly.

Is this barcode generator free?

Yes, completely free with unlimited barcode generation. No signup required, no watermarks. Create barcodes in 10+ formats instantly in your browser.

Are barcode data uploaded to servers?

No, all barcode generation happens locally in your browser using JavaScript. Your product codes and barcode data never leave your computer for maximum privacy.

Which barcode format should I choose?

Code 128 is versatile for general use, EAN-13/UPC for retail products, Code 39 for inventory, and ITF-14 for shipping. Choose based on your industry standards and data requirements.

What is the difference between EAN-13 and UPC-A?

EAN-13 is the international standard with 13 digits, while UPC-A is used primarily in North America with 12 digits. Both include check digits for validation.

Do I need to include checksum digits?

Some formats (EAN, UPC, Code 128) require checksums for validation. The tool can automatically calculate and include checksums when needed.

What size should I make my barcode?

Barcode size depends on scanning distance and print quality. Generally, aim for at least 2-3 pixels per bar for digital use, and consider the X-dimension for printing.

Can I customize the barcode appearance?

Yes! You can customize colors, fonts, margins, text position, and include or exclude human-readable text while maintaining barcode functionality.