Format Hub
Convert zipped KML (KMZ) online — free
KMZ is a KML file zipped together with its icons and images: what Google Earth saves and what Google My Maps exports by default. It is the most common way a map arrives by email.
Upload a .kmz below to turn it into a shapefile, GeoJSON, GeoPackage, CSV or plain KML, or pack your own data into a KMZ anyone can open in Google Earth. A My Maps export with several layers converts its largest layer, and the finished conversion names the others.
Files are deleted automatically after 48 hours. Your files are never shared.
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KMZ: frequently asked questions
Is the KMZ converter free?
Partly. Every new account gets three welcome conversions for free; after that, buy a credit pack to pay per conversion, or take a subscription for unlimited conversions within its file-size limit. Nothing to install; everything runs in the cloud.
What is the maximum file size?
Up to 5 GB per file on the largest plan (smaller plans have lower limits). Files are deleted automatically after 48 hours.