Barcode generator

Generate Code 128, EAN-13 and EAN-8 barcodes as SVG. Adjust height, module width and label.

FormatCode 128EAN-13EAN-8

Value

Height (px)Module width (px)Show text under the barcode

Preview

Features

Encodes Code 128 (full ASCII), plus retail EAN-13 and EAN-8 product codes.
Auto-computes the EAN check digit and flags invalid input for the chosen format.
Outputs vector SVG with an optional human-readable caption — sharp at any print size for labels and packaging.

How it works

Pick a symbology — Code 128, EAN-13 or EAN-8 — and type your value or digits.
Tune the bar height, module width, quiet-zone margin and bar/background colors.
Watch the barcode update live, then download it as SVG or copy the SVG markup.

Your files never leave this page

Every conversion runs entirely in your browser using WebAssembly. There is no upload, no server-side processing, no analytics, and no cookies. Open DevTools → Network during the operation and you will see zero outbound traffic.

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Topics covered

barcode generator online
code 128 generator
ean 13 generator
ean 8 generator
barcode svg generator
free barcode maker