Tools

Check the elevation above sea level of any place, with a map.

Check whether a coordinate falls inside a polygon boundary, with a map.

Convert a coordinate to a Geohash, or a Geohash back to a coordinate, with a map.

Pretty-print or minify GeoJSON, with a map preview.

Convert GeoJSON features into a CSV table.

Convert GeoJSON into KML for Google Earth or Google My Maps.

Check GeoJSON for structural errors, with clear explanations.

Paste GeoJSON and preview it instantly on an interactive map.

Check whether a pasted GPS coordinate is valid, in decimal or DMS format, with a map.

See the true shortest flight path between two places, curved over the Earth’s surface, with a map.