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GPS Visualizer vs GPX Viewer: catalog facts
GPS Visualizer	GPX Viewer
Free Free to use, supported by donations.	Freemium Free to use, with offline maps and other features available as paid extras.
Web	Android
Many output formats, from Leaflet maps to KML and SVG Elevation profiles and elevation lookup	Opens GPX, KML, KMZ and LOC files Graphs for elevation, speed, heart rate, cadence and power
Dense, dated interface with many options Online only	Android only Offline maps require a paid upgrade
Web application	Downloadable app
Closed source	Closed source
License not stated	License not stated
No account needed	Not stated if an account is needed
Needs internet	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.