GeoJSON Converter — Convert GeoJSON Files Online Free
GeoJSON is the standard open format for web GIS, natively supported by Leaflet, Mapbox GL, and MapLibre. Maparz converts GeoJSON to desktop formats like Shapefile and GeoPackage, CAD-friendly DXF, and cloud-native FlatGeobuf — all powered by GDAL.
File converter
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About GeoJSON format
GeoJSON is an open standard geospatial data format based on JSON, defined in RFC 7946. It supports all geometry types (Point, LineString, Polygon, MultiPolygon, etc.) and arbitrary properties per feature. GeoJSON is the preferred format for web mapping because browsers can parse it natively and libraries like Leaflet, Mapbox GL, and D3 consume it directly. GitHub renders GeoJSON files on a map automatically. It uses WGS 84 (EPSG:4326) as its coordinate reference system.
Strengths
- +Native browser support (JSON)
- +Human-readable and editable
- +Single file — easy to share
- +First-class support in web mapping libraries
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Frequently asked questions
Q.Can I upload a .json file that contains GeoJSON?
Yes. Maparz accepts both .geojson and .json extensions. GDAL auto-detects the GeoJSON format regardless of extension.
Q.What is the maximum GeoJSON file size?
Maparz accepts files up to 50 MB. For larger GeoJSON files, filter to your area of interest in QGIS or use ogr2ogr locally.
Q.Does GeoJSON always use WGS 84 coordinates?
By specification, GeoJSON uses WGS 84 (EPSG:4326). Output formats like GeoPackage and Shapefile will also be set to WGS 84 after conversion from GeoJSON.