IMb Barcode Validator
Detect and decode Intelligent Mail barcodes, with structural validity checks.
Drop a document to analyze
or browse to choose a file
PDF · AFP · PCL · PostScript · IPDS · max 25 MB · no signup
FAQ
What is an IMb?
The Intelligent Mail barcode is the USPS barcode that encodes routing and tracking data on mailpieces.
Does this check full USPS compliance?
This tool decodes and validates structure; full USPS OneCode (Reed-Solomon/CRC) compliance is part of the dedicated USPS module.