s101

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.

⚓ 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.

IHO S-101 (ENC) GDAL/OGR vector driver.

This project is a converter for IHO S-101 to IHO S-100 GML

Python library for Ember+: serve a tree as a provider, read and control any Ember+ device as a consumer. S101, BER and Glow in pure Python.

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⚓ A monochrome, e-ink-first nautical chart viewer for the reMarkable tablet.

Test tool for Ember+: serves a virtual tree and reads the tree of any provider, with pinned parameters. Desktop window, web interface, REST API.

⚓ OpenCPN plugin to render charts using tile57.