Barcode Generator — Code 39 Barcodes, Ready to Print

Code 39 only. This makes Code 39 barcodes, which are widely used for inventory, asset tags and ID cards. It doesn't make QR codes or EAN/UPC retail barcodes.

How to use Barcode Generator

1. Type the valueEnter the text to encode: letters A–Z, digits 0–9, spaces and - . $ / + %.
2. Check the previewThe barcode appears in the preview as you type.
3. Download the PNGPress Download PNG and print it or add it to a label.

Where Code 39 is used

Code 39 encodes letters as well as numbers, needs no check digit and is read by practically every barcode scanner, which is why it appears on asset tags, office and library ID cards, shipping labels and warehouse bins.

Printing tips

Print at 100% scale, leave a blank margin — the “quiet zone” — on both sides of the bars, and test with the scanner you'll actually use before printing a whole batch. Dark bars on a white background scan best.

Code 39 or QR code?

A QR code holds a lot — a web address, a UPI ID, a paragraph — and is read by phone cameras. A Code 39 barcode holds a short line of letters and digits and is read by the handheld and counter scanners that shops, warehouses and offices already have. If people will point a phone at it to open a link, you want a QR code; if it goes on a label, an asset tag or an ID card for a barcode scanner, Code 39 is the right fit.

Keep the value short. Every extra character makes a Code 39 barcode wider, and a long one squeezed onto a small label ends up with thin bars that cheaper scanners misread. Eight to twelve characters sit comfortably on an ordinary label.

Questions people ask

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