Leaflet default
L.ConvertCoords.GeoJSON.convert(layer, percision);
L.ConvertCoords.GeoJSON.parse(geojson, options);
Convert: https://github.com/tyrasd/togpx Parse: https://github.com/mapbox/togeojson
L.ConvertCoords.GPX.convert(layer, percision);
L.ConvertCoords.GPX.parse(gpx, options);
Convert: https://github.com/mapbox/tokml Parse: https://github.com/mapbox/togeojson
L.ConvertCoords.KML.convert(layer, percision);
L.ConvertCoords.KML.parse(kml, options);
Convert: Fork of https://github.com/mapbox/shp-write Parse: Not supported!
L.ConvertCoords.SHP.convert(layer, percision);
Convert & parse: https://github.com/topojson/topojson
L.ConvertCoords.TopoJSON.convert(layer, percision);
L.ConvertCoords.TopoJSON.parse(kml, options);
Convert & parse: https://github.com/mapbox/wellknown
L.ConvertCoords.WKT.convert(layer, percision);
L.ConvertCoords.WKT.parse(wkt, options);