gpxviewer software package provides views GPS traces collected in the GPX format, you can install in your Debian 9 (Stretch) by running the commands given below on the terminal,
$ sudo apt-get update $ sudo apt-get install gpxviewer
gpxviewer is installed in your system.
Make ensure the gpxviewer package were installed using the commands given below,
$ sudo dpkg-query -l | grep gpxviewer *
You will get with gpxviewer package name, version, architecture and description in a table
| Distro | Debian 9 stretch |
| Section | Miscellaneous |
| Package | gpxviewer |
| Version | 0.5.2-1 |
| Description | views GPS traces collected in the GPX format |
| Sub Section | Miscellaneous |