Category: Developer tools
Code 39 Barcode Generator
Generate simple Code 39 barcodes as PNG images locally
Enter uppercase letters, numbers and Code 39 punctuation, then export a local PNG barcode without product lookup or upload.
Generate a Code 39 barcode as a local PNG.
Input and generated images stay in this browser tab.
Everything on this page is processed in your browser. Nothing is uploaded.
What this tool does
Code 39 is a common linear barcode format for labels, inventory tags and internal identifiers. This tool encodes supported characters with start and stop symbols, draws the bars on a local canvas and lets you download a PNG.
How to use it
- Enter text using Code 39 characters.
- Generate the barcode preview.
- Download the PNG file.
Privacy
This tool runs entirely in your browser. Your input is never uploaded, stored or shared — closing the tab removes it.
Frequently asked questions
- Does this look up products?
- No. It only turns your own text into a barcode image.
- Which characters are supported?
- A-Z, 0-9, space and the symbols - . $ / + %.
- Is the barcode text uploaded?
- No. Encoding and drawing happen in your browser.