How to use this tool
- Choose your file or try the example.
- Run the tool and check the result.
- Save the result where a download is available.
Supported features & limits
Select files in the required order. Preserves tracks, segments, routes and waypoints. Does not invent links across gaps. Preview uses a local route drawing, without map tiles. Maximum 100 files, 10 MB total.
What happens to my files?
Your browser reads the file locally. File contents are not sent to our server. Closing or resetting this page clears the working result. Downloaded copies remain on your device.
Maintained by Roman Zmazhenko. Updated 1 November 2026.