Free CODE39 barcode generator
Type an asset or inventory ID, click Generate, and get a CODE39 barcode on a tag.
CODE39
Use uppercase letters and digits. Many older asset scanners still expect CODE39.
Opens the free label maker with your CODE39 already on the canvas.
When to use a CODE39 barcode generator
Use CODE39 when a scanner or SOP still names Code 39 or 3 of 9. For new warehouse work, CODE128 is usually shorter. CODE39 supports uppercase letters, digits, and a small symbol set.
How to generate a CODE39 barcode
- Type uppercase letters and digits above.
- Click Generate. The CODE39 barcode appears on the canvas.
- Add a readable caption if people need to type the ID.
- Print at actual size.
FAQ
Can CODE39 encode lowercase?
Standard CODE39 is uppercase. Use CODE128 if you need mixed case or a tighter barcode.
Do I need an account?
No. Click Generate. The free label maker opens with your data already on the canvas. Work stays in this browser.
Can I open a label that is already filled in?
Yes. A link with the value already in it opens the maker with the barcode on the canvas. Example: https://app.mylabelmaker.com/?tool=barcode&format=CODE39&value=SKU-1001. Spaces in the value show as %20 in the link. No signup.