GPX editor — online, free, and private

How it works

1. Open your GPX file. Drop your .gpx (or KML, KMZ, FIT, TCX) into the viewer — it's read in your browser, never uploaded.
2. Open an editor. Once the track is loaded, click Edit for track cleanup or Points for individual GPX track points and waypoints.
3. Make your changes. Trim, reverse, merge, split, smooth elevation, or rename the track. For a GPX file, select a point in Points and change its latitude or longitude.
4. Undo anything. Every change is reversible with full undo and redo — experiment freely.
5. Download. Export the edited track as a GPX 1.1 file, with heart-rate and cadence preserved on the surviving points.

What you can do

• Trim — cut points off the start or end (a stray warm-up, a forgotten stop-the-watch tail).
• Reverse — flip the direction of travel. Timestamps are removed, since they no longer describe the route.
• Merge — load a second file and join the two into one continuous track.
• Split — pick a point and break the track into two files.
• Simplify — reduce track points to a chosen maximum for a smaller GPX; review the reduced detail before downloading.
• Smooth elevation — apply a rolling average to tame a jagged, barometrically-noisy elevation profile.
• Edit metadata — change the track's name and description.
• Edit points — for GPX files, change a selected track point's latitude or longitude, or insert and delete points in the Points panel.
• Manage waypoints — add a waypoint at the selected point or delete an existing waypoint.
• Undo / redo — every edit is reversible, so you can experiment without fear.

Route planning limits

Choose Plan a route from scratch in the viewer to add, drag or delete anchors, close a loop, or retrace an out-and-back. Download the result as a GPX track or route. The planner connects anchors with straight lines; it does not snap to roads or trails. Planning and export work offline once loaded; new background map tiles need a connection.

Frequently asked questions

Is the GPX editor free and private?

Yes. It's free with no account, and your file is edited entirely in your browser — it is never uploaded to a server.

Does editing change my original file?

No. Editing happens on a copy in the browser; your original file on disk is untouched until you choose to download the edited version as a new GPX.

Does it handle large files?

Yes. Every operation is designed to stay fast even on very large tracks (tens of thousands of points), and undo/redo is always available.

Can I move individual track points?

Yes, for GPX files. Click Points, select a track point, change its latitude or longitude, and click Apply. The precision editor also lets you insert or delete points and add or delete waypoints. Choose Edit points on map in the Points panel to drag a point, tap between points to insert, or delete a point, with a preview before applying.