Convert KMZ to GML

Understanding KMZ and GML file formats

KMZ is a compressed file format used by Google Earth to store geographic data, including placemarks, paths, and overlays. It is essentially a zipped version of a KML (Keyhole Markup Language) file, often containing additional resources like images.

GML (Geography Markup Language) is an XML-based format designed for expressing geographical features. It is widely used in GIS (Geographic Information Systems) for data exchange and interoperability between different systems.

Why convert KMZ to GML?

Converting KMZ to GML is essential when you need to use Google Earth data in GIS applications that require GML for data import, analysis, or sharing with other GIS professionals.

How to convert KMZ to GML

The conversion process involves extracting the KML file from the KMZ archive and then converting the KML to GML. Here are the steps:

1. Unzip the KMZ file to extract the KML file.
2. Use GIS software or an online converter to transform the KML file into GML.

Best software for KMZ to GML conversion

QGIS is a powerful, free, and open-source GIS application that supports both KMZ and GML formats. To convert:

1. Open QGIS and go to Layer → Add Layer → Add Vector Layer to import your KML file (after extracting from KMZ).
2. Right-click the imported layer and select Export → Save Features As....
3. Choose GML as the output format and specify the destination file.
4. Click OK to complete the conversion.

Alternatively, GDAL/OGR command-line tools can be used for batch conversions and automation.

Online converters

Web-based tools like MyGeodata Converter (mygeodata.cloud) allow you to upload a KMZ file and download the converted GML file without installing any software.

Summary

Converting KMZ to GML enables seamless integration of Google Earth data into GIS workflows. QGIS is the recommended tool for this conversion, offering flexibility and robust support for both formats.