GPX Track Analyzer

• Enter the displayed example values,or choose the local input files requested by the controls. Optional source files take precedence where labelled.
• Choose Analyze GPX and inspect the complete result and any reported limitations.
• Use Download result and each companion download link to save complete outputs. Reset clears output and restores example controls.

Source text: <gpx xmlns="http://www.topografix.com/GPX/1/1" version="1.1" creator="DTH"><trk><name>Sample</name><trkseg><trkpt lat="50.85" lon="4.35"><ele>10</ele><time>2026-10-23T10:00:00Z</time></trkpt><trkpt lat="50.86" lon="4.36"><ele>12</ele><time>2026-10-23T10:01:00Z</time></trkpt></trkseg></trk></gpx>

• Analyze GPX1.1 waypoints,tracks,routes,segments,all points and adjacent edges. Creator required;up to5,000points. Latitude/longitude XML decimals within±90/±180;elevation±1e6meters. Spherical haversine shortest horizontal arc uses radius6,371,008.8m;never joins separate segments or waypoints. Gain/loss uses only adjacent known elevations;timed distance/speed uses only strictly increasing adjacent zoned instants. Missing/floating/nonincreasing times never invent speed. ISO date-time seconds,0–3fractional digits and optional timezone;no leap-second/submillisecond support. Original XML and complete inert declarations retained,including extension data. DTD/custom entities/processing instructions refuse. No schema/topology/GPS accuracy certificate. JSON20 MiB and formula-protected CSV4 MiB. One text/file source up to1 MiB;strict UTF-8,40JSON levels/100,000values or20,000XML nodes/40levels. Complete output only;oversized results refuse. No network or coordinate reprojection;all processing stays in your browser.60-second worker limit.
• Complete outputs only. Unsupported or oversized input is refused. Follow the displayed job-specific bounds and format policies.