GeoJSON structure inspector
Inspect geometry counts, position ranges and common structural errors locally.
A clear answer. Here’s how.
Accepts GeoJSON geometries, Features and FeatureCollections in RFC 7946 longitude/latitude degrees. Checks basic geometry nesting, ring closure, position dimensions and coordinate ranges, up to 10,000 positions. Reports feature/geometry counts and simple coordinate extrema. Legacy CRS declarations are unsupported. Does not validate polygon topology, ring orientation, bbox members, geodesic bounds or antimeridian wrapping; this is not full RFC conformance validation.
See a worked example
Worked example
A fixed demonstration, separate from the values you enter above.
- GeoJSON
- {"type":"FeatureCollection","features":[{"type":"Feature","properties":{"name":"Example"},"geometry":{"type":"Point","coordinates":[-0.1278,51.5074]}}]}
Example result
| Measure | Value |
|---|---|
| Feature count | 1 |
| Position count | 1 |
| Point | 1 |
| Minimum longitude | -0.1278 |
| Maximum longitude | -0.1278 |
Checks basic geometry/position structure and longitude/latitude ranges. Does not validate ring orientation, self-intersections, hole topology, bbox members or antimeridian semantics. Bounds are simple min/max.