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GPX Elevation Profile

See the elevation profile of a route with grade colours, climbs, total ascent and a map.

Free, no uploads, no sign-up. Runs 100% in your browser.

How GPX Elevation Profile works

Tracks are read and processed in your browser. The map is drawn on a canvas with no tiles by default, so not even your location area is sent anywhere. You can turn on an OpenStreetMap background if you want one. Ascent uses a small dead band so GPS noise does not inflate the climbing, and smoothing evens out the line.

Input: GPX, TCX, KML, KMZ, GEOJSON. Output: PNG, CSV.

How to use GPX Elevation Profile

1. Drop a track file.
2. Hover the profile to see the point on the map.
3. Adjust smoothing and units.
4. Download the profile PNG or the data as CSV.

Tips

• The map has no background tiles by default, so your location area is not sent anywhere. Turn on the map background if you want street detail.
• Most watches and apps export GPX. Look for Export or Share in the activity menu.

GPX Elevation Profile FAQ

Are my files uploaded?

No. This tool runs entirely in your browser tab. Files are read from your disk into memory and the result is generated locally.

Is it free? Are there limits or watermarks?

Free and open source (MIT). There are no file-size caps, daily quotas, accounts or watermarks.

Does it work offline?

Yes, once the page (and any engine it needs) has loaded, it keeps working without a connection thanks to the service worker cache.

Related tools

• GPX Pace & Splits: Per kilometre or mile splits with pace, speed, climbing and heart rate from any GPX or TCX activity.
• GPS / GIS Converter: Convert GPX, KML, KMZ, GeoJSON, Shapefile, TCX and CSV with a map preview and track stats.
• GPX Simplifier: Cut the number of points in a track while keeping its shape, so older GPS devices and apps accept it.
• GPX Merge & Split: Join several GPX tracks into one, or split a long track at breaks, GPS jumps or into equal parts.