← All free tools
Barcode Generator
✓ 100% FREE — No Signup Needed
Generate Code39 and EAN-13 barcodes instantly and download them as print-ready PNGs — perfect for products, inventory labels and retail.
EAN-13 needs exactly 12 digits (we compute the 13th check digit) or 13 digits. For retail checkout use, register your numbers with GS1.
Code39 vs EAN-13 — which to use?
- Code39: encodes A–Z, 0–9 and a few symbols. Best for warehouse labels, asset tags and internal tracking.
- EAN-13: exactly 13 digits, the universal retail barcode scanned at every checkout worldwide.
Printing tips
- Print at 100% scale — never stretch the barcode image.
- Keep quiet zones (white margins) clear on both sides.
- Test-scan with a phone app before printing hundreds of labels.
FAQs
What is the difference between Code39 and EAN-13?
Code39 encodes letters and numbers for internal inventory. EAN-13 encodes exactly 13 digits and is the worldwide retail product barcode.
Can I use these barcodes on products I sell?
Code39 is fine for your own inventory. For retail checkout scanning you need an officially registered EAN/GTIN from GS1.
What size should I print barcodes?
EAN-13 is about 37mm wide at standard size. This tool downloads high-resolution PNGs that stay sharp on labels.
Is this barcode generator free?
Yes — 100% free, no signup required.