Are polygons supported?

Yes. KML polygons with inner holes become GeoJSON Polygon features with the correct ring order.

Do names and descriptions carry over?

Yes — placemark names and descriptions are written into each feature's properties object.

Is my file uploaded anywhere?

No. Parsing and conversion happen entirely in your browser using WebAssembly and JavaScript — the file never leaves your device.

Convert KML to GeoJSON

Convert KML placemarks, paths, and polygons into a GeoJSON FeatureCollection for Leaflet, Mapbox, and QGIS — parsed locally, nothing uploaded.

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What is KML?

KML is Google Earth's XML format for placemarks, paths, and shaded polygons. It is rich but awkward to consume in web mapping code.

Why convert KML to GeoJSON?

GeoJSON is the lingua franca of web maps and GIS. Converting KML gives you data you can render in Leaflet or Mapbox and process with standard JSON tooling.

How the conversion works

Convertur uses the togeojson parser to translate KML placemarks into Point, LineString, and Polygon features, keeping names and descriptions as properties.

How to kml to geojson

Drop a .kml file into the zone above.
Convertur converts placemarks and paths to features.
Press Convert — processing is fully local.
Download the .geojson for your map or GIS project.

Related converters

GPX to GeoJSONTurn GPS tracks into web-ready GeoJSON.GeoJSON to CSVFlatten map features into a spreadsheet.KML to GPXTurn Google Earth KML into GPS-ready GPX.GPX to KMLTurn GPS tracks into Google Earth KML.