GeoJSON Validator
Validate GeoJSON syntax, geometry types, ring closure, and coordinate structure.
🔒 All processing happens locally in your browser. Your geospatial data never leaves your device.
How It Works
Parses GeoJSON according to RFC 7946. Checks JSON syntax, validates geometry types, verifies polygon ring closure (first coordinate = last coordinate), checks coordinate structures (2D/3D), and validates right-hand rule for polygon winding.
Supported Types
- Point, MultiPoint
- LineString, MultiLineString
- Polygon, MultiPolygon
- GeometryCollection
- Feature, FeatureCollection