Question 1

Does the editor upload my data?

Accepted Answer

No. The editor runs entirely in your browser for privacy and speed.

Question 2

What polygon operations are supported?

Accepted Answer

Edit/draw, combine (union), subtract, dissolve, buffer (km), split multipolygons, validate, and export.

Question 3

What export formats are supported?

Accepted Answer

You can export to WKT, GeoJSON, and ESRI Shapefile (ZIP).

WKT, GeoJSON & Shapefile Polygon Editor — free, private, fast