Why GeoJSON is Useful
GeoJSON makes it easy to store, share, and visualize map data on the web. It integrates well with JavaScript mapping libraries, REST APIs, and modern web applications.
Supported Geometry Types
- Point – a single coordinate (e.g., a city location)
- LineString – a connected sequence of points (e.g., a road)
- Polygon – an area defined by a closed ring (e.g., a country border)
- MultiPoint, MultiLineString, MultiPolygon – collections of the above
- GeometryCollection – a group of multiple geometries
- Feature – a geometry plus its attributes (properties)
- FeatureCollection – a list of features
{
"type": "FeatureCollection",
"features": [
{
"type": "Feature",
"geometry": {
"type": "Point",
"coordinates": [102.0, 0.5]
},
"properties": {
"name": "Point 1"
}
}
]
}Typical Use Cases
Developers use GeoJSON to power interactive maps, location-based services, spatial analytics dashboards, and APIs that expose geographic features in a simple, human-readable format.