Ais Decoder 

Work with NMEA VDM or VDO files to decode their content. Access all 27 AIS message types and view, extract, copy, and remove the elements you need to be processed. Transfer the AIS data via an AIS Receiver, decode and present it, import to an Excel table or a custom database.

The Ais Decoder can decode all the NMEA VDM or VDO content of all 27 AIS message types including !AIVDM, !BSVDM and !ABVDM. The program accepts AIS data from an AIS Receiver, decodes the data and presents the decoded data in a form suitable for display and analysis by mapping program (eg Google Earth or Google Maps), or for analysis using Excel, or by a database (eg MySql).