← All calculators

Geometry Simplifier & Optimizer

Douglas-Peucker vertex reduction with an interactive map preview and before/after vertex statistics.

Upload heavy spatial data, visually reduce the number of vertices, and download a lighter file.

Supports GeoJSON, KML, KMZ, and GPX

Higher tolerance means fewer vertices but less detail. Adjust the slider to see changes live.
Waiting for files...

Free and open-source. You can buy me a coffee to support this project.