Barcode Generator
Generate barcodes in various formats including CODE128, EAN, UPC, and more.
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Buy me a coffeeWhat is Barcode Generator?
A barcode is a machine-readable representation of data using parallel lines or patterns. Our Barcode Generator creates high-quality barcodes in multiple formats including CODE128 (general purpose), EAN-13 (retail products), UPC-A (US retail), and CODE39 (industrial). Generate barcodes instantly and download them for use on products, inventory labels, or documents.
How to Use Barcode Generator
Common Use Cases
- Creating product labels for retail
- Generating inventory tracking codes
- Making asset management labels
- Creating shipping and logistics labels
- Building membership or ID cards
Frequently Asked Questions
Which barcode format should I use?
CODE128 is versatile and supports all ASCII characters. Use EAN-13 for retail products in most countries, UPC-A for US retail, and CODE39 for industrial applications.
Why is my barcode not generating?
Some formats have specific requirements. EAN-13 needs exactly 12-13 digits, UPC-A needs 11-12 digits. CODE128 and CODE39 are more flexible with input.
What print resolution should I use?
For reliable scanning, print barcodes at 300 DPI or higher. Avoid scaling down too much as it can reduce scannability.