Code 39

Terry Burton edited this page Aug 22, 2016 · 9 revisions

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Code 39

The Code 39 barcode symbology is discrete, variable length and self-checking.

Also known as: Code 3 of 9, LOGMARS, Alpha39, USD-3, USS-39.


  • Code 39 Extended is a variant of Code 39 that can be used to encode full 128 character ASCII with the use of shift character combinations.
  • HIBC Code39 is a variant of Code 39 that should be used when encoding HIBC formatted data.
  • AIM USD-2 is a subset of Code 39 containing the characters A-Z, 0-9, space, - and ..

Standards: ISO/IEC 16388, ANSI/AIM BC1 - USS Code 39, BS EN 800, MIL STD 1189.

Data and Options

  • The data field can hold any of the following:
    • Numbers 0-9
    • Capital letters A-Z
    • Symbols -.$/+%* and space
  • The includecheck option calculates the check digit.
  • The includecheckintext option makes the calculated checksum appear in the human readable text.
  • The hidestars option suppresses the asterisks in the human readable text.


Data:    CODE39
Options: includetext
Encoder: code39

Data:    CODE39
Options: includecheck includetext includecheckintext
Encoder: code39

Data:    CODE39
Options: hidestars includecheck includetext
Encoder: code39