Trim a GPX file
Hide the driveway. The middle of the ride, including sensors, stays.
Files stay on this device
1Select a file
2Cut length
3Run
Select a file first.
Your file is processed in your browser and never uploaded.
What this format is
People use this to hide their home address before posting a map. The default cut is 400 metres from the start and from the end. Nothing is uploaded; the trimmed file downloads locally.
How to get the file
- From Garmin Connect
- 1. Export GPX or FIT, drop it here, then share the download — not the original.
- From Strava
- 1. Strava can hide maps itself, but a GPX you post elsewhere will still show the start. Trim first.
What is kept and what is lost
| Kept | Lost or missing |
|---|---|
| The middle of the activity, including sensor data | The start and end you cut — gone from the downloaded file, still on this device until you delete the original |
Questions
How much is cut by default?
400 metres from the start and 400 metres from the end. Change either number before you run.
Does this change the file on Strava?
No. Strava already has the original. Share the trimmed download elsewhere; this does not edit the copy on their servers.
Is the cut recoverable from the download?
No. Those points are gone from the file you download. Keep the original if you still want the full track.