GPX Viewer

About This Tool

The GPX Viewer renders a GPX file on an interactive map and reports track statistics. It is used to inspect GPS recordings from outdoor activities, verify exported routes before navigation, and visualise field survey data without installing dedicated GPS software.

Input

A .gpx file uploaded from your device or dragged onto the drop zone. GPX is the export format of virtually every GPS device and outdoor activity platform, including Garmin devices, Strava, Komoot, AllTrails, and Google Maps.

Output

All tracks, routes, and waypoints rendered on the map. Tracks are drawn as connected polylines; waypoints appear as labelled markers. The summary bar shows counts of each element type and total track distance.

Key Concepts

GPX (GPS Exchange Format)

An XML schema (version 1.1, defined by Topografix) for exchanging GPS data between software applications. A GPX file may contain any combination of three element types: <wpt> (waypoint — a named point of interest), <rte> (route — an ordered list of waypoints forming a planned path), and <trk> (track — a recorded sequence of timestamped points from live GPS logging).

Track segment (<trkseg>)

Tracks are divided into segments, each representing a contiguous recording period. A pause in recording — such as stopping a Garmin activity and resuming — creates a new segment. This viewer concatenates all segments within a track for display, so gaps in recording are bridged visually.

Elevation in GPX

The optional <ele> element within each track point stores elevation in metres as recorded by the device's barometric altimeter or GPS receiver — not fetched from a DEM. Device-recorded elevation is often less accurate than the terrain elevation provided by the Elevation Profile tool.