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GeoJSON vs JSON

GeoJSON is a JSON-based format with conventions for geographic features and geometries. General JSON can represent many kinds of structured data but does not by itself define coordinate or geometry semantics.

Which format should you choose?

Use GeoJSON for geographic features intended for compatible mapping tools; use general JSON for other structured data or when a different geospatial schema is required.

Good fit for GeoJSON

Exchange map features and properties

  • Points, lines, and polygons in web maps

Good fit for JSON

Web APIs, configuration files, and data exchange

  • Transferring structured data

Basic information

FieldGeoJSONJSON
Extension.geojson, .json.json
MIME typeapplication/geo+jsonapplication/json
Common usesExchange map features and propertiesWeb APIs, configuration files, and data exchange
How to openOpen it in a GeoJSON-compatible map tool or text editor; inspect locations and geometry on a map.Open it in a text editor, IDE, or JSON-aware viewer.
Export or convertWhen converting, verify coordinate order, coordinate reference system, geometry, and properties in the destination tool.Applications or conversion tools can convert it to formats such as CSV.

Choose by use case

Points, lines, and polygons in web maps

Exchange map features and properties

GeoJSON

Transferring structured data

Web APIs, configuration files, and data exchange

JSON

Key point 1

GeoJSON defines structures for geographic geometries and features.

More on the differences

Key point 2

JSON is a general syntax for structured values.

More on the differences

More on the differences

Check the consumer's GeoJSON version and coordinate conventions. Validate geometry and coordinates, and confirm that the mapping application interprets location and properties as intended.

  • GeoJSON follows specific conventions layered on JSON.
  • General JSON needs an agreed schema to express geographic meaning consistently.
  • Converting to plain JSON may retain values while losing standard geographic semantics.

Frequently asked questions

Is every JSON file GeoJSON?

No. GeoJSON must follow its geographic object and geometry conventions.

Learn more

GeoJSONLearn moreJSONLearn more

Related comparisons

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References and specifications