GPS track management software for KDE on Linux. Open source. Spyware-free.
ZombieTrackerGPS (ZTGPS *) can manage collections of GPS tracks from biking, hiking, rafting, light aircraft, automobile trips, snowboarding, and other activities. It features local data storage (no data scraping and monitization), advanced sorting and query capabilities to let you see and manage your data, and a customizable user interface.
(*) Note: ZombieTrackerGPS can also track non-zombies.