Official topographic maps and smart cycling junction routing — for the Netherlands and the United Kingdom.
PDOK TOPraster & TOP10NL — the official Dutch government maps at every scale. Includes the full knooppunten cycling junction network with A★ route planning.
Ordnance Survey Leisure 1:25k and Outdoor style tiles — the same maps used by walkers and cyclists across Britain.
Click any knooppunten junctions, hit compute — the A★ algorithm finds the optimal path through the official Dutch cycling network in seconds.
Switch between topo and satellite imagery with one tap. See exactly what terrain looks like before you ride.
Every planned route gets its own URL. Copy the link and send it — recipients open to the exact same route, ready to compute.
Install Semotop on iOS, Android, or desktop. The app shell loads instantly — even without a network connection.
GPS tracking with accuracy circle. Follow mode keeps your position centred on the map as you ride.
Open the map and start planning immediately. No sign-up, no tracking, no ads. Your routes stay on your device.
Switch between 🇳🇱 Netherlands and 🇬🇧 UK with one click. The map reloads to the appropriate coordinate system and tile source.
Turn on the cycling network overlay. Junction nodes appear on the map as you zoom in — loaded live from OpenStreetMap.
Tap two or more junctions in order, then hit Compute. Your route appears in seconds with total distance shown.