๐ Code39 Barcode Generator
Code39 (Code 3 of 9) is a 1D barcode format that encodes letters, digits, and a limited set of symbols. Its simple structure is widely supported by barcode scanners, making it common for industrial parts management and internal inventory labels.
Generate a Code39-format 1D barcode, supporting uppercase letters, digits, and a limited set of symbols โ commonly used in industrial and logistics settings. No check digit is required, making it simple for internal inventory labels and similar uses.
How to use
- Enter the text to encode (uppercase letters, digits, and limited symbols only).
- Adjust the foreground and background colors if needed.
- Download the generated barcode as a PNG or SVG.
FAQ
Which characters are supported?
Only uppercase letters (A-Z), digits (0-9), and the symbols - . space $ / + %. Lowercase letters are automatically converted to uppercase.
Does Code39 require a check digit?
No, Code39 is a relatively simple barcode format that typically doesn't require a check digit in standard use (though some implementations optionally add one).
How does this differ from a JAN/EAN code?
JAN codes (EAN-13) are numeric-only, fixed at 13 digits, and mainly used for retail products, while Code39 supports letters, digits, and symbols with variable length โ making it better suited for things like industrial asset tags or internal inventory numbers.