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GPX to KMZ converter, without the upload.

Turn GPX tracks into KMZ. It is converted in your browser, so the file never leaves your device.

Drop GPX files here

or choose from your computer paste with Ctrl V

Ready · other file types work too0 bytes uploaded, ever

Convert to

How to convert GPX to KMZ

  1. Add your GPX tracks

    Drop GPX files onto the box above, or click it to choose them. ToAny reads the file's contents to detect the type, so a wrong extension does not matter.

  2. KMZ is already chosen

    Press Convert. There is nothing else to set. The work happens in this tab.

  3. Download

    Save the KMZ, or download everything as one ZIP if you converted several files.

Why ToAny

  • Private by construction

    The GPX to KMZ converter is part of this page and runs inside your browser. Your tracks are never sent to ToAny or to anyone else.

  • No upload, no queue

    Nothing has to travel to a server and back, so the conversion starts the moment you press Convert, even on a slow connection.

  • Free, without an account

    No sign-up, no email address and no watermark. Add several files and download them together as a ZIP.

GPX to KMZ: what to expect

GPX is verbose XML and has no place for extras such as heart rate unless an extension is used. KMZ bundles a map with its icons and images in one file. GPX is at home in GPS tracks, routes and waypoints; KMZ is the usual choice for KML with its icons and overlay images in one file.

Every format is read into plain GeoJSON features and written out from there, so coordinates, names and properties carry over wherever the target has a place for them. XML that declares custom entities is refused, and GPX files are parsed without touching the network. Altitude and per-point timestamps are kept; a line with timestamps is written as a Google Earth track that can be played back. The KML is zipped as doc.kml, the name Google Earth expects.

GPX vs KMZ

GPX

GPX track file

GPX is the open XML format for GPS data and the common language of hiking, cycling and running apps. It records waypoints, planned routes and recorded tracks with time and elevation. Almost every GPS device and app can import and export it.

Opens in Garmin BaseCamp, Strava, Komoot, Google Earth, QGIS and nearly every GPS app

GPX converter
KMZ

KMZ map file

A KMZ is a ZIP archive containing a KML file, normally named doc.kml, and the icons and images it uses. Google Earth saves a placemark collection as KMZ so that the pictures travel with it.

Opens in Google Earth, Google My Maps, QGIS and most GIS tools

KMZ converter
GPX compared with KMZ
GPXGPX track fileKMZKMZ map file
Stands forGPS Exchange FormatZipped Keyhole Markup Language
TypeGPS track dataGeographic data (zipped)
CompressionNone (XML text)Lossless (a ZIP containing KML)
Introduced2002, by TopoGrafixThe mid-2000s, by Google
Opens inGarmin BaseCamp, Strava, Komoot, Google Earth, QGIS and nearly every GPS appGoogle Earth, Google My Maps, QGIS and most GIS tools
Best forGPS tracks, routes and waypointsKML with its icons and overlay images in one file
File extension.gpx.kmz

Questions

Are my tracks uploaded anywhere?

No. The GPX to KMZ conversion runs inside your browser, on your own phone or computer. The file is not sent to ToAny or to anyone else.

Is anything lost when converting GPX to KMZ?

The values are kept. Anything KMZ has no way to express, such as formatting, formulas or nesting, is simplified or left out.

Can I convert several GPX files at once?

Yes. Add as many as you like, convert them together and download each result or all of them as one ZIP.

How do I convert GPX to KMZ on Windows, Mac, iPhone or Android?

The steps are the same everywhere because ToAny runs in the web browser: open this page in a current version of Chrome, Edge, Safari or Firefox, add the GPX file, press Convert and save the KMZ. There is nothing to install.

Is there a file size limit?

Yes. Files up to 150 MB are accepted; a larger file is refused with a message. Beyond that the limit is your device's memory, since nothing is uploaded; a computer copes with large files better than a phone.