Free · Local file processing · No account
Combine daily GPS exports, files from several field workers, or separate project layers so the recipient opens one KML.
Loading the local file tool…
Loading the local file tool…
If processing fails, check the file extension and source contents. Use a smaller batch if memory runs low. The original files are never overwritten. Inspect known locations and attributes before sharing a result.
The merger copies source XML into separate folders, retaining ExtendedData, geometry and style definitions. Local style and schema IDs are renamed together with references. External styles and relative assets still depend on their original resources.
No. Merging concatenates source documents. Use exact point deduplication for repeated points, or dissolve for polygon boundaries.
No. This file operation runs in your browser and needs no account or payment. The page and processing libraries need an initial network load. Opening a map preview can request external map tiles; linked resources in your original KML are not fetched or embedded by this tool.
Inspect outputs directly using the result button above. Choose a compatible next operation in the result panel to continue locally without downloading again. These related links open a fresh task. Share the downloaded file through your own channels; local files are not published to a hosted URL.
Merged exports contain the same survey location more than once, making counts and map markers misleading.
A GPS track or detailed boundary takes too long to open or contains more vertices than the map needs.
Send each survey team or project area only its own folder, or break a combined KML into manageable files.
Convert KML output to GeoJSON for web maps