How it works
An editor for drawing geographic data on an interactive map: markers for single locations, lines for routes or paths, and polygons for areas, coverage zones or parcels. Every geometry you draw can be named and carry its own properties.
You can also start from data you already have: import a GeoJSON, KML, KMZ, Shapefile or WKT file, edit it on the map — move vertices, add geometries, delete the ones you don't need — and export the result in any of those formats.
Everything happens in your browser: the files you load are never uploaded to a server. Coordinates are handled in WGS84 (EPSG:4326), the latitude and longitude system used by GeoJSON, KML and web maps.
Examples
Marker drawn on the map{"type":"Point","coordinates":[-58.3816,-34.6037]}When exporting as GeoJSON, each marker becomes a Point. Coordinates are written in longitude, latitude order.Three-vertex polygonPOLYGON ((-58.38 -34.60, -58.37 -34.60, -58.37 -34.61, -58.38 -34.60))In WKT a polygon is closed by repeating the first vertex at the end; the editor adds it for you on export.Use cases
- Draw a coverage or delivery area and export it as GeoJSON to use it in an application.
- Visually review a geographic file you received before loading it into a system.
- Fix the position of misplaced points in an existing layer and export it again.
- Quickly put together a set of test coordinates to develop or debug a map feature.
- Convert between formats while editing: import a Shapefile, adjust whatever is needed and download a KML.
Frequently asked questions
Which formats can I import and export?
GeoJSON, KML, KMZ, Shapefile and WKT, both for importing and exporting. A Shapefile is always handled as a ZIP, because it is not a single file but a set (.shp, .shx, .dbf, .prj) that has to travel together.
Are my files uploaded to a server?
No. Importing, editing and exporting are resolved entirely in your browser; the geographic data never leaves your machine.
Which coordinate system is used?
WGS84 (EPSG:4326), latitude and longitude in decimal degrees. If your Shapefile comes in another projection, reproject it first in a GIS such as QGIS, otherwise the geometries will appear displaced.
Are feature attributes preserved when converting?
Yes, with one exception: WKT describes geometry only, so attributes are lost when exporting to that format. GeoJSON, KML, KMZ and Shapefile do keep them.
Is my drawing saved if I close the page?
No. The editor does not persist your work: if you close or reload the tab, the drawing is lost. Export the result to a file before leaving.