View KMZ Online — Free Browser-Based Viewer
Upload a KMZ file and Maparz extracts and renders its contents on an interactive map instantly. KMZ is a ZIP-compressed KML file — Maparz handles the extraction automatically so you can preview your data without Google Earth.
KMZ viewer & converter
About the KMZ format
KMZ is a ZIP-compressed version of a KML file. It typically contains a doc.kml file at its root along with any referenced images, icons, or overlays. KMZ files are smaller than their KML counterparts, making them easier to share by email or embed on web pages. They are supported by Google Earth, QGIS, ArcGIS, and many online mapping tools. KMZ files can be uploaded directly to Google My Maps.
Strengths
- +Smaller than raw KML
- +Can bundle images and overlays
- +Widely accepted by mapping tools
Limitations
- −Not directly human-readable (ZIP compressed)
- −Same analytical limitations as KML
Frequently asked questions
Q.What is the difference between KML and KMZ?
KMZ is a ZIP-compressed version of KML. It is typically smaller and can bundle images and overlays alongside the geometry. Maparz supports both formats directly.
Q.Can I convert KMZ to GeoJSON or Shapefile?
Yes. After the map preview loads, select your desired output format and click Convert. Maparz converts via GDAL under the hood.
Q.Will embedded images in the KMZ be preserved?
The geometry and features are fully preserved. Embedded icon images are extracted but not rendered in the map preview.
Q.Is there a file size limit?
Up to 50 MB. KMZ files are compressed, so most real-world KMZ files are well within this limit.