Free · Draw a radius on Earth

GeoJSON Circle Polygon Maker

Turn a centre point and radius into a GeoJSON polygon that follows ground distance.

  • 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.

Result view
Making the map resultTurf is loading in this tab.
StatusLoading
EngineTurf.js
PrivacyLocal
FormatGeoJSON

Three simple steps

How to use it

  1. Enter the centre coordinate.
  2. Set the radius, unit, and smoothness.
  3. 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.