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MapKmlTools

GeoJSON to KML for Google Earth

Convert GeoJSON files to KML format for Google Earth. Free browser tool with no upload required for secure GIS export.

Frequently Asked Questions

Is GeoJSON to KML free to use?

Yes, converting GeoJSON to KML is 100% free.

Does GeoJSON to KML upload my files to a server?

No, the conversion runs locally with no upload required.

What file formats does GeoJSON to KML support?

Supports standard .geojson and .json spatial files.

Will it work in Google Earth?

Yes, the exported KML is fully compliant with Google Earth Pro and mobile.

Why do I need to convert GeoJSON to KML?

GeoJSON is the web standard used by Leaflet, Mapbox, and React Map GL. KML is used by Google Earth and Google My Maps. If your data is in GeoJSON but your audience uses Google Earth, converting to KML lets them open it instantly.

Do custom properties and attributes carry over?

Yes. All GeoJSON feature properties are preserved as KML ExtendedData fields and appear in the info bubble when you click a feature in Google Earth.

Is my data uploaded to your servers?

No. The conversion runs entirely in your browser using JavaScript. Your GeoJSON file never leaves your device.

What feature types are supported?

All GeoJSON geometry types are supported: Point, LineString, Polygon, MultiPoint, MultiLineString, MultiPolygon, and FeatureCollection.

What file size limits apply?

GeoJSON files up to 50MB are supported. Very large files may take a few seconds to render the map preview but convert instantly.

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Drop GeoJSON file here

or click to browse (.geojson, .json)

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What is GeoJSON to KML?

GeoJSON to KML is the bridge between web mapping and desktop GIS. Developers often work with GeoJSON, but clients and stakeholders prefer Google Earth.

This tool ensures your web data is perfectly accessible in the environment your team prefers.

When Should You Use This Tool?

  • •You have data from Mapbox/Leaflet you need to see in 3D.
  • •You need to send a web export to a non-technical client.
  • •You are migrating data storage formats.

How to Use GeoJSON to KML

  1. Upload your .json or .geojson file.
  2. View the data on the map to confirm it loads.
  3. Click 'Convert to KML'.
  4. Download the result.