GPXSee

GPXSee is a Qt-based GPS log file viewer and analyzer that supports all common GPS log file formats.

Features

Opens GPX, TCX, FIT, KML, NMEA, IGC, CUP, SIGMA SLF, Suunto SML, LOC, GeoJSON, OziExplorer (PLT, RTE, WPT), Garmin GPI&CSV and geotagged JPEG files.
User-definable online maps (OpenStreetMap/Google tiles, WMTS, WMS, TMS, QuadTiles).
Offline maps (MBTiles, OziExplorer maps, TrekBuddy maps/atlases, Garmin IMG/GMAP & JNX maps, TwoNav RMaps, GeoTIFF images).
Elevation, speed, heart rate, cadence, power, temperature and gear ratio/shifts graphs.
Support for DEM files (SRTM HGT).
Support for multiple tracks in one view.
Support for POI files.
Print/export to PDF/PNG.
Full-screen mode.
HiDPI/Retina displays & maps support.
Native GUI for Windows, Mac OS X and Linux.

Build requirements:

Qt 4.8 or QT 5.x (Qt >= 5.10.1 recommended for all features)
C++03 or newer compiler (tested: msvc2015, gcc >= 4.8, clang/Apple LLVM version 8.1.0)

Build steps:

lrelease gpxsee.pro
qmake gpxsee.pro
make # nmake on windows