KML can contain nested folders, styles, altitude values, and mixed geometry. Conversion should preserve placemark identity and surface unsupported structures instead of silently discarding them.
A practical preparation workflow
- 1
Read placemarks and coordinate tuples.
- 2
Normalize supported points and polygons.
- 3
Review conversion warnings before download.
What to check
- Placemark names
- Longitude-latitude-altitude tuples
- Polygon boundaries
- Unsupported network or style content
Keep this limitation visible
The free converter handles a bounded KML subset and does not process remote network links.