What this tool checks
Use this GeoJSON validator to paste, drop, or load a local .geojson or .json file and inspect it in your browser. It validates JSON shape, accepts FeatureCollection, Feature, and geometry objects, then summarizes feature count, geometry types, bbox, property keys, empty or null geometries, coordinate range warnings, possible latitude/longitude order issues, ring closure issues, and Z/M coordinate presence.
Why it helps GIS handoff
Segmentation output becomes useful only when downstream teams can trust the vector handoff. Before importing reviewed masks into another system, check that the GeoJSON is valid, has plausible coordinates, and carries the properties your workflow expects.
For product steps, read RasterForge mask and GeoJSON exports and Review cleanup before GIS export.
Useful checks after segmentation
| Check | Why it matters |
|---|---|
| Feature count | Confirms the export has objects rather than an empty layer |
| Geometry counts | Helps spot unexpected points, lines, or geometry collections |
| Bbox | Reveals coordinate order or projection mistakes quickly |
| Ring closure | Polygon rings should close before GIS import |
| Property keys | Confirms class labels, ids, and export metadata are present |
Related RasterForge pages
If you are validating vector handoff from image segmentation, read Satellite image segmentation software for GIS export. If the source raster needs a preflight too, use the GeoTIFF Inspector.
FAQ
Does this upload my GeoJSON?
No. The validator runs locally in your browser and does not upload pasted or dropped GeoJSON by default.
Does it require a FeatureCollection?
No. It accepts FeatureCollection, Feature, and standalone geometry objects, then normalizes the summary so you can inspect common metadata.
Does it validate every GIS rule?
No. It catches common GeoJSON and RasterForge export issues. Use a full GIS stack or dedicated validator for topology, projection policy, and organization-specific rules.
Why are coordinate warnings only warnings?
GeoJSON uses longitude, latitude coordinates for WGS84, but many real files are local, projected, or mislabeled. The tool flags suspicious ranges and likely order issues without claiming certainty.