← Topology Tools

Topology Cleaner

▶ Try with demo data

Drop a polygon layer to detect and fix overlaps and gaps. Click any issue to zoom to it. By default only noise-scale gaps get filled — switch modes or use the slider to control how much gets filled.

Drop a polygon layer

Drop a file here

Polygon coverage in any supported format — adjacent admin units, basins, etc.

Your files never leave your device.