Convert GeoJSON to KMZ

Turn GeoJSON data into KMZ (zipped KML) — free, instant, and entirely in your browser, with optional reprojection to any of 200+ coordinate systems.

No upload. No account. Your data stays on your machine.

Drop your files here or click to browse.

Shapefile (all parts or .zip), GeoJSON, KML/KMZ, GPKG, GPX, DXF, CSV, TAB and more — files never leave your browser.

Output format

Output coordinate system

EPSG:4326 — KMZ is always WGS 84

Source CRS override (for CAD/CSV without one)

About GeoJSON (GeoJSON)

The web-native vector format — plain JSON, readable by every mapping library and most modern GIS tools. RFC 7946 expects WGS84 coordinates.

Worth knowing: Text-based and verbose for large datasets; RFC 7946 deprecates non-WGS84 CRS metadata.

KML in a zip container — the compact form Google Earth saves and shares. Identical content to KML, a fraction of the size.

Worth knowing: Same constraints as KML; embedded images/models inside the archive are passed through, not converted.

Drop your GeoJSON file above.
We read it locally with GDAL compiled to WebAssembly — nothing is uploaded.
Optionally pick an output coordinate system; official datum grids are applied automatically.
Download your KMZ result, with a transformation report showing exactly what was done.