Format guide

GeoJSON

Geographic JSON (RFC 7946)

GeoJSON encodes geographic features (points, lines, polygons) as JSON objects following RFC 7946 (2016). Coordinates are always [longitude, latitude] in WGS84. Supported natively by Leaflet, Mapbox GL, OpenLayers, ArcGIS, QGIS, and PostGIS — the default exchange format for web mapping. Lighter and easier to inspect than KML or shapefile (.shp).

How to open a GeoJSON file

GitHub renders GeoJSON files inline as interactive maps. geojson.io provides an in-browser editor + validator. QGIS opens .geojson directly. Leaflet/Mapbox apps consume it programmatically.

Primary use

Web mapping data exchange (Leaflet, Mapbox, ArcGIS).

Convert other formats to GeoJSON

KML → GeoJSON
GPX → GeoJSON

Convert GeoJSON to other formats

GeoJSON → KML
GeoJSON → GPX

Looking for something else? Browse the full list of 192 converters.