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Barcode Generator

Generate barcodes for products

About Barcode Generator

Barcode Generator is a free online tool that creates scannable barcodes directly in your browser — no software installation, no signup, and no data ever leaves your device. Choose from the most common retail and inventory formats (CODE128, EAN-13, EAN-8, UPC, and CODE39) to label products, track stock, or generate codes for shipping and asset management.

How to use Barcode Generator

  1. 1Type the text or number you want to encode into the input field.
  2. 2Choose a barcode format that matches your use case: CODE128, EAN-13, EAN-8, UPC, or CODE39.
  3. 3Click "Generate Barcode" to render it instantly in your browser.
  4. 4Download the barcode as a PNG image and use it in labels, packaging, or documents.

Frequently Asked Questions

Is Barcode Generator free to use?

Yes, it's completely free with no signup and no limit on how many barcodes you can generate.

Which barcode formats are supported?

CODE128, EAN-13, EAN-8, UPC, and CODE39 — the formats most commonly used for retail products, inventory, and shipping labels.

Why do I get an error when generating an EAN or UPC barcode?

EAN-13 requires exactly 12–13 digits, EAN-8 requires 7–8 digits, and UPC requires 11–12 digits. Double-check your input matches the format's required length.

Is my data private?

Yes. The barcode is rendered entirely in your browser — nothing is uploaded to a server.

Tips & Tricks

  • ✓Use CODE128 for general-purpose alphanumeric data — it's the most widely compatible format across scanners.
  • ✓For EAN-13, EAN-8, or UPC, count your digits carefully before generating to avoid format errors.
  • ✓Always test a printed barcode with a real scanner before printing large batches of labels.
  • ✓Download the barcode at a large size for the clearest print quality on physical labels.