Apps similar to QMapShack include MTL Explorer, which is free and open source. Other options are wanderer, gpx.studio, RouteConverter and Garmin BaseCamp. You can choose from more than 10 Map Services like QMapShack for Windows, Linux, Mac, the web and self-hosting.
MyTourbook is free software to visualize and analyze tours which are recorded by a GPS device, bike- or exercise computer and ergometer.
Germany
EU
Load, modify and save your GPX 1.1 files. Add and remove waypoints, edit track and routes, simplify tracks (reducing file's size), clean recorded data, add and edit GPX metadata, edit waypoint, route and track properties, all with real-time preview.
GPS TrackMaker® is a full-featured free program for GPS devices! You can use the Real-Time Navigation routine to go out with a GPS connected to a portable computer, knowing where is your location on the map.
gpxsplitter splits multi-track GPX files, containing waypoints, into individual one-track GPX files with their respective waypoints.
Track Guru is a tool for analysis of GPS tracks in GPX files. It helps to keep an overview over a collection of GPX Tracks, to gather statistics on them, modify them and clean up errors. Its goal is to concentrate on those jobs and do them in an easy and straightforward way.
ZTGPS is a Linux+KDE native PIM application satisfying the same purpose as Garmin's "BaseCamp" software, which does not run on Linux.
With Opentraveller place markers, draw tracks, change the background map, visualize in 3D your route and print it or export it to GPX.
Portugal
Sweden