KMZ Viewer Online
Drop a .kmz file to see its placemarks, paths and polygons on a map. No unzipping, no renaming — the archive is opened for you.
🔒 All processing happens locally in your browser. Your files never leave your device.
About KMZ files
A KMZ is simply a KML document that has been ZIP-compressed, usually together with the assets it references — custom placemark icons, photo overlays, or a ground overlay image. Google Earth saves KMZ by default because it keeps a map and everything it depends on in one file, and because compressing verbose XML makes a dramatic difference to size.
You do not need to unzip it or rename it to .kml first. This viewer opens the archive directly, reads the KML inside it, and draws the geometry on a map. What you see is the vector content — placemarks, paths and polygons, with their names and descriptions.
Common questions
What is a KMZ file?
A KMZ is a ZIP archive containing a KML document plus any files it references, such as custom icons or overlay images. The KML inside describes the geographic features; the ZIP wrapper bundles the assets and compresses the whole thing. Google Earth produces KMZ by default when you save a place or a project.
Do I need to unzip a KMZ or rename it to .kml?
No. Renaming a .kmz to .kml is a workaround people often repeat, and it is unnecessary here — the archive is opened directly and the KML inside is read for you. It is also worth knowing that renaming does not really work in general: many tools that accept .kml expect raw XML and will fail on ZIP bytes regardless of the extension.
Will the images inside my KMZ be displayed?
No. Files bundled inside a KMZ — custom placemark icons, photo overlays, and ground overlay images — are not drawn. The viewer renders the vector geometry: points, paths and polygons, along with their names and description text. If a KMZ is mostly a georeferenced image overlay, very little will appear on the map, and that is expected rather than a failure to read the file.
What is the difference between KML and KMZ?
They carry the same geographic content. KML is a single uncompressed XML file, readable in any text editor. KMZ is that same KML zipped up, optionally alongside referenced assets. KMZ files are far smaller — XML compresses very well — which is why they are the usual choice for sharing anything substantial. Both open here.
Is my KMZ uploaded to a server?
No. The archive is unpacked and rendered entirely in your browser using a WebAssembly build of GDAL. Nothing is transmitted, so you can open KMZ files containing sensitive site data without them leaving your device.
KMZ is a zipped KML, usually bundled with the icons or overlay images it references. This viewer opens the archive directly, so there is no need to unzip it or rename it to .kml before you can see what is inside.