100% local — files never leave your device
Convert GeoJSON to KML
Turn GeoJSON into KML instantly in your browser. No upload, no account, and no file ever crosses the network.
About GeoJSON
RFC 7946 FeatureCollection. The universal interchange format.
About KML
Google Earth / Maps markup with attributes in ExtendedData.
- KML is always written in EPSG:4326, as required by the specification.
Step by step
How to convert GeoJSON to KML
- 01
Drop your .geojson file
Open the converter and drop the GeoJSON file — parsing happens locally in a Web Worker, so nothing is uploaded.
- 02
Choose KML as the output
Pick KML, reproject to any of 180+ coordinate systems if needed, trim attributes and preview the geometry on a map.
- 03
Download the .kml file
Save a single file, or convert a whole batch and download everything as a ZIP. Nothing is stored after the download.
GeoJSON to KML — questions
Is converting GeoJSON to KML really private?
Yes. The conversion runs entirely in your browser using a Web Worker — the GeoJSON file is never sent to a server, so it works with confidential data and offline.
Do I need an account to convert GeoJSON to KML?
No. There is no signup, no email and no install. Open the converter, drop the file and download the result.
What happens to attributes and coordinate systems?
KML is always written in EPSG:4326, as required by the specification. You can also reproject between 180+ coordinate reference systems or add a custom proj4 definition before writing.
Need the other direction? Convert KML to GeoJSON