Free online GPKG to KML converter

GPKG (GeoPackage) is an open, SQLite-based container for storing geographic data such as vector features, tiles, and attributes in a single portable file. KML (Keyhole Markup Language) is an XML-based format used to display geographic data in mapping tools like Google Earth and many GIS viewers.

Why convert gpkg to kml

Converting GPKG to KML is useful when you need to share map data with users who prefer Google Earth or other KML-compatible applications. KML is often easier for quick visualization, while GeoPackage is better for editing, analysis, and storing richer GIS datasets.

Best software for conversion

The best all-around choice is QGIS, because it is free, reliable, and supports both formats well. For command-line workflows, GDAL/OGR is also an excellent option. If you want a simple desktop workflow, QGIS is usually the easiest.

How to convert in qgis

1. Open QGIS and load your .gpkg layer.
2. Right-click the layer and choose Export → Save Features As...
3. Set the format to KML.
4. Choose the output file name ending in .kml.
5. Confirm the coordinate reference system if needed, then click OK.

If your data contains multiple layers, export each layer separately, since KML is typically created one layer at a time.

How to convert with gdal/ogr

Using GDAL, you can convert from GeoPackage to KML with a command like:

ogr2ogr -f KML output.kml input.gpkg

This method is fast and ideal for automation. If the source GeoPackage has multiple layers, you may need to specify the layer name explicitly.

Important conversion notes

• KML uses geographic coordinates, so data may need to be in WGS 84 for best results.
• Styling support is limited compared with GeoPackage, so some symbology may not transfer perfectly.
• Attribute fields usually convert well, but complex data types may be simplified.
• Large datasets may become slower or heavier in KML than in GeoPackage.

Recommended workflow

For most users, the best workflow is to open the GeoPackage in QGIS, verify the layer and projection, then export to KML. If you need repeatable batch conversion, use GDAL from the command line.

Summary

GPKG is best for GIS storage and editing, while KML is best for sharing and viewing map data in Earth browsers. For the easiest conversion, use QGIS; for automation, use GDAL/OGR.