Map Boundary Builder

Image Upload Drop or paste map screenshot PNG, JPG, WebP, AVIF, GIF, BMP, TIFF, SVG

Uploaded map screenshot preview

Extracted mask overlay preview

Boundary Polygon on map Exported area with fit, fill, and outline.

{
  "type": "FeatureCollection",
  "features": [
    {
      "geometry": {
        "type": "Polygon",
        "coordinates": [...]
      },
      "properties": {
        "source": "map screenshot"
      }
    }
  ]
}

GeoJSON FeatureCollection Coordinates and source properties.