How to edit a GPX file
A GPX file is just a list of GPS points (latitude, longitude, and usually elevation and time). "Editing" it means changing those points — moving them, adding or removing them, thinning them out, or adjusting the timestamps — and saving a new file. You can do all of that free in your browser with the GPX Toolkit; nothing is uploaded.
1. Open the file
Click Open GPX file or drag your .gpx onto the map. GPX, TCX, FIT,
KML and KMZ files all work — non-GPX formats are converted automatically.
2. Make your change
- Move, add or delete a point: click a point to select it, then drag it, edit its coordinates, or delete it. In Add point mode, click the map to insert points.
- Reduce points: shrink a dense file to fit a device limit.
- Fix GPS errors: remove spikes that inflate your distance.
- Crop or trim: cut the drive to the start or a forgotten stop.
- Change the time: shift timestamps so Strava accepts a re-upload.
3. Download
Click Download GPX to save a clean GPX 1.1 file, ready for your watch, bike computer or Strava. Prefer turn-by-turn on your device? Choose Save as route.
Is it safe / private?
Yes — the file is read and edited entirely in your browser and never sent to a server, so your home location and routes stay on your device.