DataToolsLab
Generators

Barcode Generator

Generate Code128, EAN-13, UPC-A, and Code39 barcodes.

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What is Barcode?

A barcode generator for the most common 1D symbologies. Pick a format, enter the value, and get a standards-compliant barcode image.

How it works

The barcode is drawn locally with jsbarcode — no server round-trip — and exported as either SVG or PNG.

  1. Enter your input. Type or paste your input into the field above — the tool responds instantly.
  2. Review the result. Output updates live as you type. Everything runs entirely in your browser.
  3. Copy or download. Use the Copy button to grab the result, or Download to save it as a file.

Examples

Label and packaging codes

Generate a Code 128 or EAN-13 barcode from a value, ready to print on labels, price tags, or packaging.

Common mistakes

Wrong symbology

EAN-13 is the retail standard for products; Code 128 is general-purpose. Choosing the wrong type can fail downstream scanners.

Frequently asked questions

Does it add a check digit?

For EAN-13 the check digit is computed automatically; Code 128 includes its own internal checksum.

What output formats are available?

SVG and PNG, at the resolution and height you choose.

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