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Runs locally in your browser

GeoJSON Fixer

Normalize Features and close unclosed Polygon rings, then download repaired GeoJSON.

Input

Result

How it works

  1. Paste or choose GeoJSON.
  2. Review detected problems.
  3. Download the normalized, repaired FeatureCollection.

Current limitations

  • The fixer closes polygon rings and normalizes the root.
  • It does not guess missing coordinates or repair self-intersections.