Areas

Boundaries you want to keep: drawn, imported or typed in, saved in this browser with every revision. Open one to edit it, measure it against a raster, or hand it to Mapreview and other tools.

New area
Storage

Kept in this browser only.

Never backed up. The browser may clear it when space runs low.

Areas live in this browser’s storage and nowhere else. Back them up from the storage menu before clearing site data. Areas and lengths are measured on the WGS84 ellipsoid, along each edge as the map draws it, the same as in Mapreview.