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FREE · GPX EDITOR · NOTHING UPLOADED

GPX editor — trim, split, merge and reverse, in your browser

Drop a GPX, FIT or TCX file — or several — and trim, split, join or reverse it. Edited in your browser; the file is not sent anywhere.

GPX editor — trim, split, merge and reverse, in your browser

What it does

Drop one file or several. The route is drawn, and four things can be done to it:

  • Trim — two sliders cut the start and the end. The distance at each cut is shown, so trimming the walk to the start line or the loop back to the car is a matter of watching the number.
  • Split — a third slider picks a point; the file is downloaded as two GPX files, and the cut point is in both so the halves join up.
  • Merge — drop more than one file and they are joined into one route. If every file has timestamps they are put in time order; otherwise in the order they arrived. Nothing is drawn between them — a gap between two rides becomes a straight line, which is usually what you want and sometimes is not.
  • Reverse — the route runs the other way. Timestamps are dropped when you do this, because a file whose clock runs backwards is one most tools refuse; the positions and elevation stay.

The sliders move by point, not by metre. A watch records a point every second or so, which is fine enough to cut a ride at the right corner; it is not a map to click in.

What comes out

A GPX 1.1 file with position, elevation and time where the file had them. FIT and TCX go in; GPX comes out — if you need the FIT back, GPX to FIT writes a course file. Or skip the download: Print this route opens the editor with the edited file already loaded.

Nothing is uploaded

Reading, editing and writing happen in your browser. The file is not sent to a server, and closing the tab leaves nothing behind.

The trim you might actually want

If the point is to hide where you live, you do not need this page: every print trims the first and last stretch by default, and hiding your home on a route print explains how far. And if the point is a print, you do not need this page either: the editor has the same start-and-end cut built in, next to the privacy radius, and on a Strava activity it can cut to a segment — the climb without the ride out to it. This page is for the other cuts — the two rides that were really one, the loop you want to ride the other way round, the file you want to keep as a file.

Questions people actually ask

Can I cut the start and end of a GPX file?

Yes — the two trim sliders. The distance at each cut is shown while you drag, and the route redraws as you go.

How do I merge two GPX files into one?

Drop both. They are joined into one route, in time order if both have timestamps, otherwise in the order they arrived. Download the result as one GPX.

Can I split a GPX file in two?

Yes — the split slider picks the point, and Download both parts gives two GPX files. The cut point is in both so the halves join up.

What happens to timestamps when I reverse a route?

They are dropped. A file whose clock runs backwards is refused or misread by most tools. Position and elevation are kept, and the trim and split still work.

Does it work with FIT and TCX?

Yes. FIT, TCX and GPX go in, including zipped .fit.gz from a Strava export. The result is always GPX; heart rate and power from a FIT are not carried over.