Free · Use fewer shape points

GeoJSON Simplifier

Remove extra coordinates while keeping the main shape of a line or polygon.

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.

Detailed GeoJSON

{
  "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
      ]
    ]
  }
}

ToleranceHigher removes more points

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 a detailed line or polygon.
Raise the tolerance to remove more points.
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.