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Industry Extended Code 39 (Full ASCII)

Extended Code 39 Barcode Generator (Extended Code 39 (Full ASCII))

Generate Extended Code 39 full ASCII barcodes for legacy computing, military, and manufacturing systems.

Live Generator
22/500

Completes check digits when their position is clear. Use parenthesized AIs for GS1. Existing check digits are validated. Other formats keep their usual behavior.

FG
BG
🛡️Zero Data Retention: Encoded in edge memory. Never logged or stored.

Technical Specifications

Structure 1D Linear (Extended Code 39 (Full ASCII))
Capacity Variable length full ASCII encoded using Code 39 two-character pairs
Character Set Full 128 ASCII
Quiet Zone Requirement auto modules (1D Linear)

Common Applications

This standard is widely used in the following industries:

1D Linear utilized across retail, logistics, manufacturing, and global supply chains.
Input Constraints & Parity: The xBarcode Rust engine enforces strict input boundary and character set conformance. Internal parity and standard check symbols are handled automatically to prevent defective symbols in production.
Developer Quickstart

Automate Extended Code 39 via API

Full API Reference → 
curl -X POST https://api.xbarcode.ai/v1/render \
  -H "Content-Type: application/json" \
  -H "Authorization: Bearer YOUR_API_TOKEN" \
  -d '{
  "format": "code39extended",
  "content": "Hello!"
}' > barcode.svg
API outputs: SVG, PDF, EPS and matrix JSON. PNG is exported in the browser. < 20ms Edge latency
Related Standards

Alternative Symbologies related to Extended Code 39

Code 128
ISO/IEC 15417:2007
Open Generator →
Code 128 Subset A
ISO/IEC 15417:2007
Open Generator →
Code 128 Subset B
ISO/IEC 15417:2007
Open Generator →

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