Barcode generator
Generate Code 128, Code 39, EAN-13, UPC-A or ISBN barcodes with check-digit validation. Files and entered content are not sent to or stored on a server.
How to use
Generate Code 128, Code 39, EAN-13, UPC-A or ISBN barcodes with check-digit validation.
Supported formats & limits
UTF-8 → SVG / PNG
Processing stays in this browser. File formats and available memory may limit the result.
Wrong supplied check digits are rejected. ISBN-10 is validated and converted to ISBN-13.
Barcode generator User guide
Instructions
- Choose the standard and enter a value matching its character / digit rules.
- Create the code; omitted EAN / UPC check digits are added automatically.
- Check the printed value and save PNG / SVG.
Example
Input / settings
EAN-13 · 590123412345
Result / checks
5901234123457
Please note
- Wrong supplied check digits are rejected. ISBN-10 is validated and converted to ISBN-13.
- Code 128 accepts printable ASCII; Code 39 uses uppercase letters. Keep the printed white margins.