GPX Editor

Edit a GPS track on the map. Open GPX, KML, KMZ, or FIT. The file stays on your device.

  • GPX editor online
  • Merge and split
  • Nothing uploaded

Drop one file or several. The map and the graphs update as you edit. Merge tracks, split one track in two, trim the ends, simplify a dense line, reverse the direction, or fix an elevation spike. Then download GPX, KML, KMZ, or CSV.

Open a track

Your file never leaves your device.

How to edit a track

  1. 1

    Open the files

    Drop GPX, KML, KMZ, or FIT. Several files become several parts on the same map.

  2. 2

    Edit on the map

    Merge, split, trim, simplify, reverse, or fix elevation. The bright line is the preview. The track changes only when you apply the edit.

  3. 3

    Download

    Save GPX, KML, KMZ, or CSV. The original file on your device is left as it was.

What you can change

  • Merge joins every part into one track, in the order listed.
  • Split cuts the part you are editing into two. Each side keeps at least two points.
  • Trim keeps the points between two handles. The bright line is the part you keep.
  • Simplify drops points that sit close to a straight line.
  • Reverse flips the direction. The timestamps still run forward.
  • Fix elevation replaces isolated spikes and fills short gaps from nearby points. It does not download new heights.

Undo puts the last edit back.

Privacy

Your file never leaves your device. There is no upload and no account. Closing the tab drops the track from this page.

Questions

Does the file get uploaded?

No. The browser reads the file where it already is. GPS Toolset does not receive a copy.

Which files can I open?

GPX, KML, KMZ, and FIT. Drop one file or several. Each file is added as a track you can edit.

What can I change?

Merge tracks into one, split one track into two, trim the ends, simplify a dense line, reverse the direction, and fix elevation spikes using nearby points in the file. Undo puts the last edit back.

What can I download?

GPX, KML, KMZ, or CSV. GPX, KML, and KMZ keep every part and the waypoints. CSV is the part you are viewing. FIT can be opened here but is not written back.

Will this work on a phone?

Yes. Choose a file from your phone. The map fills the screen, and the edit controls are large enough to tap.

More on GPS Toolset

View a file without editing in the GPX viewer, KML viewer, KMZ viewer, or FIT viewer. Convert a file on the converter.