GPXSee

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

Key features:
* Opens GPX, TCX, FIT, KML, NMEA, IGC, CUP, SIGMA SLF, Suunto SML, LOC, GeoJSON, OziExplorer (PLT, RTE, WPT), Garmin GPI & CSV, TomTom OV2 & ITN, ONmove OMD/GHP, TwoNav (TRK, RTE, WPT) and geotagged JPEG files.
* User-definable online maps (OpenStreetMap/Google tiles, WMTS, WMS, TMS, QuadTiles).
* Offline maps (OziExplorer maps, TrekBuddy maps/atlases, Garmin IMG/GMAP & JNX maps, TwoNav RMaps, GeoTIFF images, MBTiles, BSB charts, ENC charts, KMZ maps, AlpineQuest maps, Locus/OsmAnd/RMaps SQLite maps, Mapsforge maps, QCT maps, GEMF maps, Osmdroid SQLite maps, Orux maps, World-File georeferenced images).
* Elevation, speed, heart rate, cadence, power, temperature and gear ratio/shifts graphs.
* Support for DEM files (SRTM HGT).
* Support for POI files.
* Export to PNG and PDF.
* Multiple tracks in one view.
* Real-time GPS position.
* Free software (GPLv3 open-source license).