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Code 93

General & Common CodesAlso known as: Code 93

Ethan Carter

QR & Barcode Standards Specialist

Code 93 is a more compact, higher-density successor to Code 39 that can encode the full ASCII set through shift characters while taking up less space.

How it works

Every character uses nine modules across three bars and three spaces, and two check characters are appended for stronger error detection than Code 39.

Where it's used

Logistics and supply-chain labelling, and historically by Canada Post for supplementary delivery information.