GeoJSON
GeoJSON is an open standard format, defined in IETF RFC 7946, for encoding geographic features such as points, lines and polygons, with their properties, in JSON. It uses longitude-latitude coordinates in WGS 84 and is the format the EUDR Information System accepts for bulk geolocation uploads.
Also known as: RFC 7946 · .geojson · FeatureCollection
Why does it matter?
GeoJSON is the common language between field mapping tools, GIS software and the EUDR Information System. Getting it right avoids rejected uploads and silent errors that put plots in the wrong place.
How does it work?
A GeoJSON file is usually a FeatureCollection of Feature objects. Each feature has:
- a
geometry:Pointfor small plots,PolygonorMultiPolygonfor boundaries; properties: attributes such as a plot identifier, farmer identifier, producer country or area.
Key rules from RFC 7946:
- coordinates are in WGS 84, ordered longitude then latitude;
- polygon rings are closed (first and last positions identical);
- exterior rings should follow the right-hand rule (counter-clockwise), holes clockwise.
For EUDR submissions, check the Information System’s current technical specifications for accepted properties, file size limits and precision.
Common pitfalls
- Latitude and longitude swapped.
- Coordinates rounded below six decimals during export.
- Projected coordinates (metres) instead of degrees.
- Self-intersecting or unclosed polygons.
- Personal data in
propertiesthat should not travel with the file.
Farmer1st converts KML, shapefiles, spreadsheets and field-app exports into validated GeoJSON through its geo and polygons service.
Frequently asked questions
Is the coordinate order latitude, longitude?
No. GeoJSON positions are [longitude, latitude], optionally followed by altitude. Swapping the order is one of the most common errors in EUDR geolocation files.
How do KML or shapefiles relate to GeoJSON?
They are other geospatial formats. KML is an OGC standard often used by mapping apps; shapefiles are a legacy GIS format. Both can be converted to GeoJSON, but conversions must preserve coordinate precision and the correct coordinate system.
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