GeoJSON to KML Converter
Processing entirely on your device — large files may take a moment.
GeoJSON is the web-standard format for maps: points, lines and polygons with properties, consumed by every mapping library. Convert KML to GeoJSON for web maps, or to CSV for spreadsheets.
iLoveConverter processes everything locally on your computer, which makes it private and fast: no upload wait, no server storage, no limits. Add as many files as you like — batch conversion is built in.
How GeoJSON compares to KML
| GeoJSON | KML | |
|---|---|---|
| Structure | FeatureCollection JSON | XML placemarks & folders |
| Types / schema | Point / LineString / Polygon | Points, lines, polygons, styles |
| Compatibility | Leaflet, Mapbox, QGIS, PostGIS | Google Earth, Maps, agencies |
| Best for | Web maps and data pipelines | Sharing annotated places |
How to convert GeoJSON to KML
- 1
Select your files
Drag & drop your GeoJSON files onto the area above, or click to browse. You can add multiple files at once for batch conversion.
- 2
Convert instantly
Click "Convert to KML". The conversion runs entirely inside your browser using WebAssembly — no upload, no queue, no waiting.
- 3
Download results
Download each converted KML file individually, or grab everything at once as a ZIP archive.
About the GeoJSON format
GeoJSON is the map format the web agreed on: a FeatureCollection of points, lines and polygons, each carrying arbitrary properties, in plain JSON. Leaflet, Mapbox, D3, QGIS and PostGIS all consume it directly, which is why almost every GIS workflow ends with “export as GeoJSON”.
Converting the older formats into GeoJSON (SHP, KML, GPX) is the bridge from institutional and device data into anything a browser can draw.
+ Strengths
- ✓Consumed by every web mapping library
- ✓Plain JSON — easy to filter and edit
- ✓Properties travel with the geometry
! Limitations
- −Verbose for huge datasets
- −No built-in styling or symbology
About the KML format
KML (Keyhole Markup Language) started life as Google Earth’s file format and became an OGC standard. It describes placemarks, paths, polygons and even camera tours, with rich styling — which is also why it is heavier and harder to parse than GeoJSON.
Most KML files in the wild come from Google Earth exports and government portals. Converting them to GeoJSON puts the same places into any web map without a Google Earth dependency.
+ Strengths
- ✓Rich styling, tours and descriptions
- ✓Google Earth and Maps read it natively
- ✓OGC standard, widely published by agencies
! Limitations
- −Verbose XML, hard to hand-edit
- −Web map libraries need conversion first
Why convert GeoJSON to KML?
There is a concrete reason this conversion exists: Verbose for huge datasets KML sidesteps that — Rich styling, tours and descriptions If that is your situation, the tool above settles it in seconds, entirely on your device.
Frequently asked questions
Is this GeoJSON to KML converter really free?
Yes — completely free, with no sign-up, no watermark and no daily conversion limits. The site is supported by advertising.
Are my files uploaded to a server?
No. The conversion runs entirely inside your browser using WebAssembly, so your files never leave your device — that is what makes it instant and private.
Does it work on Windows, Mac, iPhone and Android?
Yes. Anything with a modern browser works: Windows, macOS, Linux, Android and iOS. No software installation is required.
Is there a file size limit for GeoJSON to KML?
The only limit is your device's memory, since nothing is uploaded. Files up to a few hundred megabytes work fine on a modern desktop browser; very large files simply take a little longer.
How large can my GeoJSON file be?
Since everything runs locally in your browser, the real limit is your device memory rather than an upload cap. Files up to a few hundred megabytes are usually fine on a modern computer; extremely large ones simply take longer.
Are formulas, styles or multiple sheets converted?
No — this conversion extracts the data itself into KML. Formulas are exported as their current values, styling is not carried over, and multi-sheet workbooks convert sheet by sheet. For full fidelity between spreadsheet formats, exchange within the same tool family.