Code 128 Barcode Generator & Reader1D Code 128 / Mod 103
Generate high-density 1D Code 128 barcodes (Auto, Code A, B, C) with modulo 103 checksums and decode Code 128 barcode images.
Presets:
Rendered Barcode High Vector Quality
Technical Specifications Guide
| Feature | Specification | Primary Use Cases |
|---|---|---|
| Symbology Type | 1D High-Density Linear Barcode (3 bars & 3 spaces per char) | Logistics, Shipping, Inventory |
| Checksum | Modulo 103 Algorithm | Automatic error verification |
| Subsets | Code A (Control/Upper), Code B (ASCII Text), Code C (Double Numeric) | Universal Inventory Tagging |
FAQ
Frequently Asked Questions
Everything you need to know about this tool
Code 128 is a high-density 1D linear barcode symbology capable of encoding all 128 ASCII characters (numbers, letters, punctuation, control codes). It uses Modulo 103 checksum calculation.
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