GeoJSON to KMZ Converter
Convert GeoJSON features into a compressed Google Earth KMZ archive.
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About Converting GeoJSON to KMZ
GeoJSON is the format of the web: it is what an API returns, what Leaflet and Mapbox consume, and what a Python or JavaScript analysis writes out. Google Earth reads none of it. When you need to show that data to someone who has Google Earth rather than a GIS installation or a browser-based map, it has to become KML — and KMZ, the compressed single-file form, is what Google Earth itself saves to.
The converter reads your FeatureCollection and turns each feature into a KML placemark: Points become points, LineStrings and MultiLineStrings become paths, and Polygons keep their inner boundaries as holes. Each feature’s properties become the placemark’s name and description, so the attributes that made your data meaningful are still there when someone clicks a shape. The finished KML is then packaged as a KMZ with the document stored as doc.kml.
Common use cases
- Showing API or analysis output to a stakeholder who works in Google Earth
- Turning a GeoJSON boundary file into something that can be viewed over satellite imagery
- Presenting computed results — service areas, clusters, routes — in a desktop tool rather than a web map
- Handing off geographic data to a client, regulator or planner who expects KMZ
- Getting a quick visual sanity check on GeoJSON geometry against real terrain
Tips for best results
- Feature properties become the placemark name and description, so give your features a "name" property before converting if you want them labelled usefully in Google Earth.
- Polygons with holes are preserved: GeoJSON inner rings become KML inner boundaries rather than being flattened into separate shapes.
- GeoJSON has no styling, so Google Earth applies its defaults. If you need specific colours, open the result and set them there, or style a KML and use the KML to KMZ tool instead.
- KMZ is worth choosing over KML for large collections because the archive compresses the repeated coordinate text heavily.
How to Convert GeoJSON to KMZ Online
Here is how a GeoJSON → KMZ conversion works on PrivConvert, from start to finish. What you gain with KMZ: one self-contained file including icons and overlays.
Drag and drop your file into the upload area, click to browse your device, or paste a URL to a file hosted online. You can upload files up to 250 MB and batch convert up to 20 files at once.
Once uploaded, the conversion from GeoJSON to KMZ starts automatically. The process runs entirely in an isolated environment - your data never leaves the secure pipeline.
Your converted file is ready instantly. Click the download button to save it to your device. The file is deleted from memory immediately after download.
Why choose PrivConvert?
Converting GeoJSON to KMZ should not mean handing a stranger a permanent copy of your data. PrivConvert processes everything in memory and forgets it instantly.
Your files are handled entirely by automated code. No staff, partner or AI model ever reads, stores or trains on your data.
Files are processed in volatile memory (RAM) and purged the instant your download is ready — nothing is ever written to disk, cached or backed up.
Every upload and download is protected with TLS 1.3, so your file cannot be intercepted on the way to the server or back to you.
Convert instantly with no sign-up, no email and no profiling cookies. We never build a profile around you or the files you convert.
GeoJSON vs KMZ - Format Comparison
| Feature | GeoJSON | KMZ |
|---|---|---|
| File extension | .geojson | .kmz |
| Supported by PrivConvert | Yes (as input) | Yes (as output) |
| Privacy-safe conversion | In-memory, zero storage | |
| Max file size | 250 MB per file | |
| Batch support | Up to 20 files simultaneously | |
Why people pick PrivConvert for KMZ
Thousands of people trust PrivConvert with their files because privacy here is structural — enforced by how the service runs, not just promised.