OpenCPN

OpenCPN
DeveloperThe OpenCPN Authors
Stable release
5.12.2 [1] / August 2, 2025 (2025-08-02)
Written inC, C++
Operating systemCross-platform
TypeChart plotter and navigation
LicenseGPL v2[2]
Websiteopencpn.org
Repositorygithub.com/OpenCPN/OpenCPN

OpenCPN (Open Chart Plotter Navigator) is a free software maritime chart plotter and navigation software for use underway or as a planning tool. Developed by a team of active sailors and tested in real world conditions, it has multiple supported chart formats and a variety of data inputs.[3][4]

By using satellite navigation and other NMEA 0183 data feeds, OpenCPN determines a ship's own position and status from sensors such as AIS receivers to automatically plot and track the positions of ships in the neighborhood.[5]

In 2017 Norwegian ENC charts were available for OpenCPN.[6]

References

  1. ^ "OpenCPN Download Directory". opencpn.org.
  2. ^ "OpenCPN/OpenCPN". GitHub.
  3. ^ "OpenCPN About". Retrieved 22 April 2018.
  4. ^ Monthly, Yachting (2022-02-01). "Free digital nautical charts: are they any good?". Yachting Monthly. Retrieved 2022-09-13.
  5. ^ A, Damián (2020-07-22). "OpenCPN, a navigation application for Ubuntu". Ubunlog. Retrieved 2022-09-13.
  6. ^ "Norwegian ENC Data in OpenCPN". 2017-09-11.
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