Quick Answer
How do you generate a barcode?
// Answer
A barcode encodes data as a pattern of parallel lines of varying width that scanners read optically. To generate one, choose a symbology (like CODE128 for general use or EAN-13 for retail products) and enter your data. The tool renders the bars and you download an image.
Which barcode format should I use?
| Format | Best for |
|---|---|
| CODE128 | General purpose, alphanumeric |
| EAN-13 | Retail products (13 digits) |
| UPC-A | North American retail (12 digits) |
| CODE39 | Logistics, inventory |
Why use this tool
Print-ready and private
Generate clean, scannable barcodes for inventory labels, products, or assets, and download them for printing. Rendering happens entirely in your browser, so your data stays private.
FAQ
Frequently asked questions
CODE128 handles letters and numbers and is widely supported, making it a good default for general use.
EAN-13 is a fixed-length retail standard; the 13th digit is a checksum the tool can calculate.
Yes. Download the PNG and print at a size your scanner can read clearly.
No, barcodes are generated locally in your browser.
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