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GPXSee vs Viking: catalog facts
GPXSee	Viking
Free Free and open source.	Free Free and open source under the GNU GPL.
Linux, Android	Windows, Linux
Opens a very wide range of GPS log formats Reads GPS data from action cam and dashcam videos	Edits tracks, routes and waypoints in GPX, KML and TCX Shows OSM, Bing Aerial and other map layers
A viewer and analyser rather than a route planner Custom map sources need manual configuration	Real-time GPS and Mapnik rendering are not available on Windows GTK interface looks dated on Windows
Downloadable app	Downloadable app
Open source	Open source
License not stated	License: GPL
No account needed	No account needed
Works offline	Not stated if it works offline
Official website Full listing and sources Checked September 23, 2026	Official website Full listing and sources Checked September 23, 2026

Catalog facts only. Anything “not stated” is unconfirmed. Check full listings for details.