GPX viewer

Drop a GPX from a watch, a bike computer or a route planner and see it on a map, with its distance, its climbing and a profile you can run a finger along. The file is read on your device, so a run that starts at your front door stays there.

Your file is read on this device and never uploaded.

Then make it a film: Animate this route opens the track in Voyarc, which draws it on a real map and exports it as a video.

What it does, and what it does not

Reads the track points of a GPX 1.0 or 1.1 file, or its route points when it has no track, with each point’s height and time.
Counts climbing once a rise passes 3 m, so the jitter in GPS heights on the flat does not add up to hills.
Downloads the file unchanged, or as GPX 1.1, KML or GeoJSON with the heights and times kept.
Waypoints are not shown, and several tracks or segments in one file are drawn as one line, in the order the file has them.
Heart rate, cadence, power and temperature extensions are not read.

Questions

Why is the climbing lower than my app says?

Apps count climbing differently. This one counts a rise only once it passes 3 m, so small ups and downs from GPS noise are left out. An app that replaces the recorded heights with a terrain model, or counts every metre, will give a different total; neither number is wrong.

What is moving time?

The time spent going faster than 1 km/h from one fix to the next. A stop at a café or a red light, where the position barely moves, is left out of it.

My file has no heights. What happens?

The map, the distance and the times still show; the climbing and the profile say the file has no heights. A file whose every height is 0, as some route planners write, is treated the same way.

Is there a size limit?

Files up to 100 MB. A large file is read off the page’s main thread, so the tab stays responsive while it loads.