Nautical Ninja
Browse nautical charts from anywhere
Interactive chart viewer built on official NOAA ENC vector charts. Displays your GPS position in real time, overlays OpenSeaMap community data, and gives you access to the full NOAA Coast Pilot database — over 14,000 cruising notes, anchorage descriptions, and hazard warnings for the entire US coastline. No account needed.
Official US vector charts with depths, hazards, and aids to navigation.
Live position display — the chart follows you as you move.
Community-sourced marinas, fuel docks, and points of interest.
14,000+ NOAA cruising notes searchable by location and category.
Trip planning Explore your route at home — check depths, locate anchorages, and read cruising notes before you go.
Researching unfamiliar waters Read what other sailors have said about a bay, inlet, or marina before you commit to entering.
Armchair sailing Browse any coastline, zoom into channels, and explore places you'd like to sail someday.