GEOJSON · PLANAR 2D · READ ONLY
Check your polygons.
Know where to look.
Inspect Polygon and MultiPolygon geometry, review problems by feature index, and take a clear issue report back to your GIS workflow.
1. Choose a file
One UTF-8 .geojson or .json file, up to 10 MiB. Processing runs locally in a browser Worker.
Choose a file to begin.
2. Review the results
Raw summary
| Index / ID | Geometry | Status | Reason / warnings | Location (x, y) |
|---|