USPS Intelligent Mail Barcode (IMb) Generator & ReaderUSPS 65-Bar 4-State
Generate 65-bar 4-state height-modulated USPS Intelligent Mail Barcodes (IMb) for mail sorting and decode IMb barcode strings.
Presets:
Rendered Barcode High Vector Quality
Technical Specifications Guide
| Feature | Specification | Primary Use Cases |
|---|---|---|
| Bar Structure | 65 Bars, 4-State Heights (F, A, D, T) | USPS Automated Letter & Flat Sorting |
| Fields Included | Barcode ID + Service Type ID + Mailer ID + Serial Number + Routing ZIP | USPS Mail Tracking & OneCode Confirm |
| Standard | USPS-STD-105 | US First-Class & Marketing Mail |
FAQ
Frequently Asked Questions
Everything you need to know about this tool
IMb is a 65-bar 4-state height-modulated postal barcode used by the United States Postal Service (USPS) for sorting letters and flats. It replaces POSTNET and PLANET barcodes by combining barcode tracking and routing ZIP codes into a single symbol.
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