Code 39 Barcode Generator
Code 39 is a long-standing, simple-to-implement format covering uppercase letters and digits, still common in industrial and warehouse labels.
Data length
可变长度
Character set
大写字母 / 数字 / 符号
Check digit
模 43（可选）
Typical uses
Industry, warehousing, asset management
Select barcode format
Press Tab after a value to add custom display text, or paste two columns (value, caption) straight from Excel.
Output
1 item(s)
Code 39 · Uppercase letters, digits and - . $ / + % space
Options
Foreground
Background
Barcode image API
/api/barcode/code39/ABC-1234
The endpoint returns an SVG vector image usable directly in <img> tags.