THE free and open source chart plotter:

  • numerous chart formats supported
  • individual user interface
  • AIS collision alert
  • integration of weather and current gribs
  • NMEA0183 interface (SignalK support under development)
  • tactics plugIn

Official vector charts (iENCs) are available free of charge for inland waterways in Europe and the USA. Offshore charts (oeENCs) made available via at low cost.