Online Nmea Tools

Explanation of Calc of Checksum

Calc of Nmea Checksums with Python

AIVDM & AIVDO NMEA sentence decoder

NmeaChecksum Calculator

MTK NMEA checksum calculator

Nmea Generator]

OpenSkipper Open Source C# code for Windows for integrating and displaying NMEA 0183, NMEA 2000 and AIS data from nautical instruments, GPS units and internet data sources, receive and transmit data over multiple connections, webserve to Laptop, Ipad or Android. by Dr Drew Mason and Jason Drake, updated in 2014 by Timo Lappalainen and Kave Oy from Finland.

NMEA Simulator 26.03.2019 NMEA Simulator can be used to simulate real devices on NMEA 0183 or NMEA 2000 bus. With simulator you can e.g. test you navigation software without real devices.

Dave Koy Apps Page

Chrome Nmea Simulator to TCP

Sailsoft Freeware - WaypointCreator, IpaNmea, NmeaFileReader

Max Kagstrom Nmea Simulator -Free for a time

Labset Reed GPS Nmea Simulator

AIVDM/AIVDO protocol decoding Eric Raymond

AIS Online Decoder. AIVDM & AIVDO NMEA Messages

signalk.stupan.se. Håkan’s data feeds, commonly used in testing.

Provided on a best effort basis, please don’t report errors.