A concise ChartPlotter/Navigator. A cross-platform ship-borne GUI application supporting * GPS/GPDS Postition Input * BSB Raster Chart Display * S57 Vector ENChart Display * AIS Input Decoding * Waypoint Autopilot Navigation

天津大学电子海图控件/S-57 Electronic Chart Control developed by Tianjin University

Tools to produce vector tiles from Electronic Navigational Charts

TypeScript parser for S-57 and S-101 marine nautical charts with S-52 symbology rendering

⚓ A high-performance, low-memory S-57/S-101/raster chart engine: vector tiles, S-101 styles, PNG, PDF, and C API.

Parser for S-57 unencrypted ENCs

⚓ A native chartplotter app for Mac, iPad, iPhone, Linux, and Android. S57/S101 ENCs, and raster charts, rendered directly with Metal, Vulkan, or SDL3 at 60 fps. Not for navigation.

⚓ Marine chart plotter in Go — bakes NOAA S-57 or S-101 ENCs into S-101-portrayed vector tiles and serves them offline from your laptop or a Pi on the boat.

FERET is a tool to convert Furuno's ECDIS route files (*.rtz) into CSV files.

IHO S-421 Route Plan Exchange implementation for Java

Simple ECDIS for Mac OS X

Electronic Chart: An electronic map used for navigation, displaying information such as ocean topography, water depth, and shipping lanes. 电子海图：一种用于导航的电子地图，显示了海洋的地形、水深、航道等信息;

Modular research and simulation platform inspired by ECDIS functionality for the Saguenay River (collision risk, grounding, UKC, fuel/GHG). RESEARCH PROTOTYPE - NOT FOR NAVIGATION.

OSMAnd map overlay script for Vltava and Labe rivers from oficial sources

Maritime career simulator in Python and Pygame. Pure-Python simulation layer, COLREGS collision avoidance, tide-aware routing, headless test suite and a 16-scenario gameplay bot.