Putting a run on a web map
Export the activity as GPX, convert here, and load the GeoJSON into a mapping library to draw the route.
GPX to GeoJSON
Convert a GPX GPS track or waypoints to GeoJSON in your browser, ready for mapping tools.
Maintained by Roshan.
Use GPX to GeoJSON
Converts gpx to geojson in this tab, with nothing sent anywhere.
Runs entirely on your deviceThe conversion happens in this browser tab. Nothing you type is uploaded, logged or stored, which is worth knowing for anything you would not paste into a search box.
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Browse all developer and data toolsAbout GPX to GeoJSON
GPX is the format GPS devices and fitness apps use to record where you went - a run, a ride, a hike, a survey - but the wider world of web mapping runs on GeoJSON. Converting a GPX file to GeoJSON is what lets you take a recorded track and display it on a web map, style it, or process it with the many tools built around GeoJSON. This reads the points out of a GPX file - track points, route points and standalone waypoints - and produces the matching GeoJSON: a connected line for a recorded track, individual points for loose waypoints. A GPS trace is revealing data, the literal record of your movements, so converting it in the browser rather than uploading it to a website is the obvious right choice.
Work through the input
- The GPX is scanned for its point elements - track points, route points and waypoints - reading the latitude and longitude from each.
- A file containing a track or route is treated as a path, its points joined into a single connected LineString.
- A file of standalone waypoints becomes individual point features instead.
- Coordinates are written in GeoJSON's longitude-then-latitude order.
- The result is a standard FeatureCollection ready for a mapping library.
When gpx to geojson is useful
Processing a survey track
GeoJSON is what geographic tools consume. This turns a device's GPX into it without uploading your movements.
Check the output
- It extracts the geometry - the points and their order. Timestamps, elevation, heart rate and other data recorded alongside each point are not carried into this conversion.
- A recorded track becomes one LineString; if your file has several separate tracks you may want them as separate features, which this does not split out.
- Waypoints and tracks are told apart by a heuristic; an unusual file mixing them may not classify exactly as expected.
- Elevation, the third coordinate some GPX points carry, is dropped in favour of a flat lat/lon path.
- The output represents the route's shape, not the full telemetry of the recording.
Questions about GPX to GeoJSON
Does it keep elevation and timestamps?
No. It extracts the route's shape - the points and their order. Elevation, time and sensor data are not carried over.
What does a track become?
A single connected LineString. Loose waypoints become individual point features instead.
What coordinate order does it use?
Longitude then latitude, as GeoJSON requires.
Can it handle waypoints and tracks together?
It classifies by a heuristic. A file mixing them may not split exactly as expected.
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