View GeoJSON without installing anything
GeoJSON is plain text, but a list of coordinates tells you little until you see it on a map. This viewer draws every geometry type — Point, LineString, Polygon (with holes), MultiPoint, MultiLineString, MultiPolygon and GeometryCollection — on OpenStreetMap or satellite imagery.
Three ways to load data
- Open a file (.geojson or .json). You can select several files at once.
- Drag and drop files onto the map.
- Paste GeoJSON into the GeoJSON tab and press Apply to map, or press Ctrl/⌘+V while the map is focused.
Click any feature to see its properties, area or length. The GeoJSON tab shows the data as text and checks it: problems such as unclosed rings, swapped latitude/longitude or wrong types are listed with their location in the file.
Private by design
Files are read by your browser; they are never uploaded. The only network requests are map tiles and, if you use the search box, the place search.
It's also an editor
Unlike a pure viewer you can fix things on the spot: move vertices, delete features, edit properties, and export the result as GeoJSON, KML, Shapefile or WKT.