Dissolve & Merge Spatial Polygons
Merge touching polygons matching an attribute in your KML or GeoJSON. Free browser tool with no upload required for secure GIS cleaning.
Select KML, KMZ or GeoJSON file(s) to merge polygons
or drag and drop them here
Select File
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Frequently Asked Questions
Q:Is Dissolve tool free to use?
Yes, dissolving spatial features is 100% free.
Q:Does Dissolve tool upload my files to a server?
No, all geometry merging happens in your browser with no upload required.
Q:What file formats does Dissolve tool support?
Supports KML and GeoJSON files for geometry dissolution.
Q:Can I dissolve based on a specific property?
Yes, you can choose an attribute to group features for merging.