Barcode Generator
? Frequently Asked Questions
What barcode formats can I generate?
Common formats include Code 128, EAN-13 (retail), UPC-A (North America), Code 39, ITF-14 (shipping), and many others. Each format has specific use cases and character limitations.
What's the difference between barcode types?
EAN/UPC are for retail products, Code 128 supports alphanumeric data for general use, Code 39 is simpler but less dense, ITF-14 is for shipping containers. Choose based on industry standards and requirements.
Can I include text below the barcode?
Yes, most generators can display the encoded value as human-readable text below the barcode. This helps manual data entry if the barcode fails to scan and verifies correct encoding.
What size should barcodes be for printing?
Standard retail barcodes need specific sizes (EAN-13: 37.29mm × 25.93mm at 100%). For Code 128, minimum bar width is 0.33mm. Always maintain proper proportions and print at high resolution (300+ DPI).
Why is my barcode not scanning?
Common issues: too small, low contrast, incorrect quiet zones (white space around barcode), damaged/smudged print, incompatible format, or printer resolution too low. Ensure proper size and 300+ DPI for reliable scanning.
Is my data safe and secure?
Yes, absolutely! This tool runs entirely in your browser. All data processing happens locally on your device - nothing is uploaded to our servers. Your files and data never leave your computer, ensuring complete privacy and security.