Free · Remove repeated coordinates

GeoJSON Coordinate Cleaner

Remove needless repeated points from lines and polygons without changing their visible shape.

Clear map preview
Private in your browser
GeoJSON download

Work with map data

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

GeoJSON to clean

{
  "type": "Feature",
  "properties": {
    "name": "Detailed trail"
  },
  "geometry": {
    "type": "LineString",
    "coordinates": [
      [
        -79.52,
        43.64
      ],
      [
        -79.513,
        43.6464
      ],
      [
        -79.506,
        43.649243
      ],
      [
        -79.499,
        43.647664
      ],
      [
        -79.492,
        43.644145
      ],
      [
        -79.485,
        43.642635
      ],
      [
        -79.478,
        43.645563
      ],
      [
        -79.471,
        43.652001
      ],
      [
        -79.464,
        43.658362
      ],
      [
        -79.457,
        43.661119
      ],
      [
        -79.45,
        43.659473
      ],
      [
        -79.443,
        43.655955
      ],
      [
        -79.436,
        43.654514
      ],
      [
        -79.429,
        43.657528
      ],
      [
        -79.422,
        43.664002
      ],
      [
        -79.415,
        43.670323
      ],
      [
        -79.408,
        43.672994
      ],
      [
        -79.401,
        43.67128
      ],
      [
        -79.394,
        43.667765
      ],
      [
        -79.387,
        43.666396
      ],
      [
        -79.38,
        43.669494
      ],
      [
        -79.373,
        43.676003
      ],
      [
        -79.366,
        43.682282
      ],
      [
        -79.359,
        43.684867
      ],
      [
        -79.352,
        43.683088
      ],
      [
        -79.345,
        43.679577
      ],
      [
        -79.338,
        43.678279
      ],
      [
        -79.331,
        43.681461
      ],
      [
        -79.324,
        43.688003
      ],
      [
        -79.317,
        43.69424
      ],
      [
        -79.31,
        43.696738
      ],
      [
        -79.303,
        43.694894
      ],
      [
        -79.296,
        43.691389
      ],
      [
        -79.289,
        43.690163
      ],
      [
        -79.282,
        43.69343
      ],
      [
        -79.275,
        43.700004
      ],
      [
        -79.268,
        43.706197
      ],
      [
        -79.261,
        43.708608
      ],
      [
        -79.254,
        43.7067
      ],
      [
        -79.247,
        43.703202
      ],
      [
        -79.24,
        43.702049
      ],
      [
        -79.233,
        43.7054
      ],
      [
        -79.226,
        43.712004
      ],
      [
        -79.219,
        43.718152
      ],
      [
        -79.212,
        43.720476
      ]
    ]
  }
}

Result view

Map previewGeoJSON

Making the map resultTurf is loading in this tab.

StatusLoading

EngineTurf.js

PrivacyLocal

FormatGeoJSON

Three simple steps

How to use it

Paste GeoJSON with extra or repeated coordinates.
Compare the before and after point counts.
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.