OpenSeaMap: Free nautical chart with buoys, lights and harbours from OpenStreetMap. OpenTopoMap: Free topographic map of the world from OpenStreetMap and elevation data.
| OpenSeaMap | OpenTopoMap | |
|---|---|---|
| Category | Hiking, Ski & Outdoor Maps | Hiking, Ski & Outdoor Maps |
| Coverage | Worldwide | Worldwide |
| Updates | Continuously (community edits) | Continuously (community edits) |
| Data source | OpenStreetMap and community depth data | OpenStreetMap and SRTM elevation |
| Made by | OpenSeaMap contributors | OpenTopoMap contributors |
| Price | Free | Free |
| Account | No account needed | No account needed |
| On phones | Works well on phones | Works well on phones |
| Map view | Flat map | Flat map |
| Visits from ColorfulMaps | 0 | 0 |
| Open map | Open map |
What you can do with OpenSeaMap
- Seamarks, lights and harbours
- Community depth data
- Sport and harbour layers
What you can do with OpenTopoMap
- Contours and hill shading worldwide
- Paths and huts from OSM
- Free to use
Summary based on public information. Check each map's website for current features and prices.