EAN-13 only for retail products that carry a real GS1-issued number, since those digits are registered and mean something. Code 128 for anything internal, asset tags, shipping references, warehouse bins, order IDs, because it encodes any printable ASCII and has no fixed length.

What if my value contains a character Code 128 cannot encode?

You get an error naming the character and its code point instead of a barcode that scans as something else. Code set B here covers ASCII 32 to 126, so a line break, a tab or an accented letter stops the draw until you remove it.

Barcode Generator

No upload · runs in your browser

16 symbols, check character 46

Symbology

Code 128

Encoded

SKU-4417-BLUE

Modules

198

Image

594×189 px

Bars are calculated and painted on your device, no value is ever uploaded.

How it works

Barcode Generator: Code 128 and EAN-13, PNG or SVG

Type a value and get a real, scannable barcode, Code 128 for anything internal, EAN-13 for retail products. Download it as a PNG or a vector SVG without uploading a thing.

What this does

Code 128 switches into code set C on its own for digit runs, keeping numeric labels narrow
EAN-13 takes twelve digits and appends the check digit, or thirteen and verifies it
Module width from 2 to 4 px on screen, with the PNG rendered at four times that
The SVG is one rect element per bar, so it stays sharp at any print size
Human-readable text is optional, with the EAN-13 lead digit set outside the left guard

FAQ

Its last digit is a modulo-10 check digit, and yours did not match the first twelve.

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