Greasy Fork is available in English.

GeoKMZer

geoKMZer is a JavaScript library designed to convert KMZ into KML files, use with GeoKMLer to convert to GeoJSON.

The following scripts use this library's Greasy Fork URL in a @require:

Script Daglige installationer Installationer i alt
WME GeoFile 0 40
WME Quick HN Importer for NP 0 6