Loading map data…
Fetching NL + Germany current/depth/water-level grids (~100 MB, gzip-compressed from ~490 MB). How long depends on your connection; they are then browser-cached for a day.

Tidal Router

A free, browser-based pre-departure planning tool for the Netherlands + Germany Wadden Sea.
Author
Thorbjoern Schoenbeck
Contact
[email protected]
Data sources & disclaimer
Full data sources, limitations & navigation disclaimer →
Source code
github.com/tristan2202/tidal_planner (MIT license)
Tidal Router
⠿ Map time
⠿ Route
Loading grids (NL + Germany, ~450 MB, first load takes ~20-30s)…
Green = clears required depth, orange = within 0.3 m, red = short.
Click map: add point at end · Click the line: insert point · Drag: move · Click marker: delete
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No waypoints yet — click the map to add one (need at least 2).
Planning tool — not for navigation. Depth safety first, passage speed second. SoG labels: green = faster than STW, red = slower. Full disclaimer & data sources →