Convert GML to KML
Convert GML (.gml) to KML (.kml) online for free. Fast, accurate geospatial format conversion with CRS reprojection.
About GML
Geography Markup Language (GML) is an OGC XML-based format for expressing geographic features. It is often used for data exchange between government agencies and in INSPIRE-compliant systems.
About KML
Keyhole Markup Language (KML) is an XML-based format for displaying geographic data in Earth browsers like Google Earth. It supports styling, icons, and 3D features.
How to Convert GML to KML
- Upload your GML file (.gml)
- Review detected layers, features, and coordinate system
- Select KML as your output format
- Choose a target coordinate reference system (optional)
- Click Convert and download your KML file
Frequently Asked Questions
Upload your GML file to ConvertGeoData, review the detected data, select KML as the output format, and click Convert. Your converted file will be ready to download in seconds.
Yes! ConvertGeoData offers free conversions for all users. No account required for basic conversions. Sign up for a Pro or Business plan for higher limits.
Yes. ConvertGeoData automatically detects your source CRS and lets you reproject to any EPSG coordinate reference system during conversion.
KML files can be opened with Google Earth, Google Maps, QGIS, ArcGIS and more.
KML requires EPSG:4326. ConvertGeoData automatically reprojects your data to the correct CRS.