See the help for usage of the buttons below:
1. Change some settings below if necessary. The default settings are usually good.
Delete unnecessary metadata
2. With the button below choose one or more files of type gpx of tcx whose file size is to be reduced. Keep in mind that for files of dozens of megabytes large, the conversion may take several seconds or tens of seconds depending on the speed of your computer.
3. The table below shows the progress. When the algorithm is complete, the resulting file is automatically saved (or you will be prompted, depending on the browser used) as a gpx file. In case you chose more than one file to shrink, then the resulting files will be bundled in a zip file.
4. Repeat steps 1 to 3 or click on the cross in the top right (or press escape) when you are done.
Step 1. Adjust the following options if necessary.
Step 2. Open the gpx files to be combined with the button below.