Our front end junior developer @iblfilip just finished long awaited Windy functionality: the file uploader.
Just visit https://www.windy.com/uploader and display KML, GPX or GeoJSON file on Windy.
Each file can be saved to our cloud either as public or private.
Each saved file than can be shared using nice shareable URL like this: https://www.windy.com/upload/5cef2a2781b2ea0012a05d5d
Enjoy and let us know how do you like it.
It works great but i have issues with the placements of the points, error is quite big but can be resolved by zooming the map. Hope you can resolve this one and by the way how can I donate to you?