1D Barcodes

Barcode Generator

Q: Why doesn't the number under the barcode match what I typed?

EAN-13, UPC-A and ITF-14 append a trailing check digit automatically, so the printed number has one more digit than you entered — that's correct.

Q: Can I recolor the barcode?

Yes, but for reliable scanning keep dark bars on a light background with strong contrast — plain black on white is safest.

Generate Code 128, EAN-13, UPC-A, Code 39, ITF-14 and Codabar from a single page — created locally, no upload, no signup.

qrdiv's free online barcode generator lets you switch between Code 128, EAN-13, UPC-A, Code 39, ITF-14 and Codabar in one page. Everything is generated locally in your browser — no upload, no signup — with PNG/SVG/PDF/EPS downloads.

Generate your barcode

Fill in the fields on the left, preview live on the right, and download in multiple formats.

Symbology

code128

Content

Appearance (color / size)

Live preview

Fill in the content, then generate

Download

Scannability check

Quiet zone, module size and contrast are checked after you generate.

Many barcodes, one page

Switch symbologiesPick from six common 1D codes in the dropdown — no need to hunt for separate tools.

Automatic check digitEAN/UPC/ITF compute the check digit for you, so a correct barcode comes out even if you leave it off.

Local, no uploadContent is encoded in your browser, never sent to a server — works offline.

Vector downloadChoose PNG/SVG/PDF/EPS; vectors stay sharp at any size, all watermark-free.

FAQ

Which barcode should I choose?

Use Code 128 for internal numbers and logistics labels; EAN-13 (Europe/Asia) or UPC-A (North America) for retail products; ITF-14 for shipping cartons; Code 39 for simple alphanumeric cases; Codabar for medical and libraries.

Why doesn't the number under the barcode match what I typed?

Can I recolor the barcode?