Endurance Calc

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GPX File Analyzer — Distance, Elevation & Splits

Drop in a GPX from Strava, Garmin, or Komoot — read it in your browser.

GPX Analyzer free · no sign-up

Drop a .gpx file here

or from your device

parsed in your browser · never uploaded

Have your runs on Strava?

Open any activity on Strava, then use the ··· menu → Export GPX and drop the file here. Nothing is sent anywhere — the analysis happens entirely on your device.

What this reads from your file

A GPX file is the open format GPS watches and apps record — a list of points, each with a latitude, longitude, and usually an elevation, a timestamp, and sometimes heart rate. This tool reads those points right in your browser and works out the distance you covered, your moving time and pace, how much you climbed, and a split for every kilometre or mile.

Your data never leaves the device

The file is opened locally with your browser’s built-in reader; nothing is uploaded, stored, or sent to a server. Close the tab and it is gone. That is the whole point of on-device tools — you can analyse a private route without handing it to anyone.

Getting a GPX from Strava, Garmin, or Komoot

Most platforms export one in a couple of clicks: on Strava use the activity’s ··· menu → Export GPX; on Garmin Connect use the gear icon → Export to GPX; Komoot offers a GPX download on each tour. Route files without timestamps still work — you will get distance and elevation, just not pace.

Questions

Is my GPX file uploaded anywhere?

No. The file is opened locally by your browser and analysed on your device — nothing is sent to a server, stored, or logged. Close the tab and it is gone.

Where do I get a GPX file?

Most platforms export one in a couple of clicks: on Strava use the activity ··· menu → Export GPX; on Garmin Connect use the gear icon → Export to GPX; Komoot offers a GPX download per tour.

What does it calculate?

Distance, moving time and average pace, elevation gain and loss, an elevation profile, average heart rate when present, and a split for every kilometre or mile. Route files without timestamps still show distance and elevation.