Hi Alexander,
Please see, Comparison in QGIS:
Please see opening output in mygeodata website failed.
Test data (input/output/QGIS)
5105 Kmz -TopoJson.zip (878.3 KB)
Thanks,...Hi Alexander, Please see, comparison in QGIS: 2026-05-24_15-58-40...It’s actually correct topoJson file and can be usefull for conversion...