Convert GPX (.gpx) to KMZ (.kmz)

RouteConverter opens GPX files and saves them as KMZ — free, offline, no upload required.

How to convert .gpx to .kmz

Open the .gpx file via File → Open.
Pick KMZ in the Save as dropdown.
Choose where to save it via File → Save as.

About GPX (.gpx)

GPX (GPS Exchange Format) is an open XML format for waypoints, tracks and routes, with optional time, elevation and extension fields. It's the universal GPS interchange format — read and written by Garmin Connect, Google Earth, OsmAnd, Strava, komoot and nearly every GPS app or device made since 2004.

About KMZ (.kmz)

KMZ is a zipped KML file — the same placemarks, paths and polygons, plus any bundled icons or ground-overlay images, in one smaller download. Opened by the same viewers as KML: Google Earth and Google Maps.

Download RouteConverter — Windows, macOS, Linux, free.

FAQ

Can RouteConverter convert .gpx to .kmz for free?

Yes. RouteConverter is free and open source. Opening a GPX file and saving it as KMZ does not require an account, a subscription, or an internet connection.

Does the file get uploaded anywhere?

No. RouteConverter runs on your own computer (Windows, macOS or Linux) and converts the file locally — nothing is sent to a server.

Can I convert .kmz back to .gpx?

Usually yes — open the KMZ file and pick GPX in the Save-as dropdown. Fields the target format cannot represent are dropped with a warning.