Barcode Generator

Type any text, get a 1-D barcode. Pick Code 128 (full ASCII, packed digits) or Code 39 (alphanumeric, optional modulo-43 check digit). Live preview, custom colours, download as SVG or PNG. Everything happens in your browser — nothing is uploaded, no sign-in, no tracking.

Text to encode HELLO-12345

Code 128 accepts all printable ASCII (32–127). Code 39 accepts A–Z, 0–9, and a few punctuation chars — input is auto-uppercased.

Options

Symbology

Code 128 Code 39

Code 128 is the most common general-purpose 1-D barcode. Code 39 is older but very common in logistics and the US DoD.

Foreground Background Reset

Height (px) Module width (px) Quiet zone (modules)

Show text label below the bars Draw background rectangle Code 39: append modulo-43 check digit