Free · Compare two kinds of centre

GeoJSON Center and Centroid Finder

Find the centre of the outer box and the centre made from all shape points.

Clear map preview
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GeoJSON download

Work with map data

Use the example or add your own GeoJSON. Results stay in this browser tab.

GeoJSON

{
  "type": "FeatureCollection",
  "features": [
    {
      "type": "Feature",
      "properties": {
        "id": 1,
        "name": "Etobicoke"
      },
      "geometry": {
        "type": "Point",
        "coordinates": [
          -79.49,
          43.66
        ]
      }
    },
    {
      "type": "Feature",
      "properties": {
        "id": 2,
        "name": "Eglinton West"
      },
      "geometry": {
        "type": "Point",
        "coordinates": [
          -79.44,
          43.7
        ]
      }
    },
    {
      "type": "Feature",
      "properties": {
        "id": 3,
        "name": "Downtown"
      },
      "geometry": {
        "type": "Point",
        "coordinates": [
          -79.39,
          43.65
        ]
      }
    },
    {
      "type": "Feature",
      "properties": {
        "id": 4,
        "name": "Leaside"
      },
      "geometry": {
        "type": "Point",
        "coordinates": [
          -79.35,
          43.71
        ]
      }
    },
    {
      "type": "Feature",
      "properties": {
        "id": 5,
        "name": "Leslieville"
      },
      "geometry": {
        "type": "Point",
        "coordinates": [
          -79.31,
          43.67
        ]
      }
    },
    {
      "type": "Feature",
      "properties": {
        "id": 6,
        "name": "Scarborough"
      },
      "geometry": {
        "type": "Point",
        "coordinates": [
          -79.26,
          43.73
        ]
      }
    },
    {
      "type": "Feature",
      "properties": {
        "id": 7,
        "name": "Sunnyside"
      },
      "geometry": {
        "type": "Point",
        "coordinates": [
          -79.42,
          43.61
        ]
      }
    },
    {
      "type": "Feature",
      "properties": {
        "id": 8,
        "name": "Port Lands"
      },
      "geometry": {
        "type": "Point",
        "coordinates": [
          -79.33,
          43.62
        ]
      }
    }
  ]
}

Result view

Map previewGeoJSON

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EngineTurf.js

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FormatGeoJSON

Three simple steps

How to use it

Paste GeoJSON or use the sample points.
Compare the box centre with the shape centroid.
Check the map, then copy or download the GeoJSON result.

Your map data stays on this device

Turf.js reads and changes the GeoJSON inside this browser tab. Bookify does not upload or save it. Close the tab and the working copy is gone.