Generate barcodes with a live preview. Download PNG or SVG, print tidy A4/A3 sheets,
and copy share links that reopen the same settings. Built to behave properly on iPad and tablets.
Make a barcode
Pick a type, enter a value, and the preview updates instantly. The tool can calculate/validate check digits for EAN/UPC.
Ready. Tip: EAN-13 is 12 digits + a check digit. Paste 12 digits and keep “Auto check digit” on.
Print a sheet
Paste multiple values (one per line), choose A4/A3, and print. Great for labels, classroom equipment, or inventory.
Tip: For the best print accuracy, choose “Scale: 100%” in the print dialog.
Live preview
⏳ Loading engine…—
Enter a value to generate the barcode.
Quick presets
One-tap starting points (you can tweak after).
Help & tips
For most uses, Code 128 is the safest choice (lots of characters, very scannable).
For retail products, choose EAN-13 (UK/EU) or UPC-A (US/Canada).
Barcodes need a little blank space around them (the quiet zone). Leaving it enabled improves scanning.
If you’re placing the barcode into a design, export as SVG for perfect print quality.
Printing a batch? Use Print sheet to generate an A4/A3 label page. Keep printer scaling at 100%.
Reliability
This page tries to load the barcode engine from your own site first (recommended), then falls back to a CDN.
For maximum reliability, upload the library file to: /tools/_assets/bwip-js-min.js
Barcode Generator FAQ
Which barcode types do you support?
Code 128, Code 39, EAN-13, EAN-8, UPC-A, ITF-14 and GS1-128.
Do EAN/UPC codes need a check digit?
Yes. Paste the code without the final digit and keep “Auto check digit” enabled to calculate it.
If you paste the full code, the tool validates the check digit and warns you if it’s wrong.
PNG vs SVG — which should I use?
PNG is great for general use. SVG is best for printing and design work because it stays perfectly sharp at any size.
How do I print multiple barcodes on one page?
Use the Print sheet tab. Paste one value per line, choose A4 or A3, and press Print sheet.
