How to Edit a GPX File in Your Browser (Free, No Install)

If you've ever come back from a hike or ride with a GPX file that starts in your driveway, ends in your car park, and has a weird detour through a parking lot, you don't need a desktop install to fix it. Modern browsers can parse, edit, and re-export GPX entirely client-side.

Why edit a GPX file at all?

Common reasons:

• Trim the start and end — your GPS started recording before you began moving and kept running after you finished.
• Remove a bad segment — a tunnel, a forest canopy, or a battery glitch produced a teleport line across the map.
• Split a multi-day trip — one big GPX from a tour, but you want one file per day.
• Strip personal info — your home address shouldn't be the first track point of a ride you're sharing publicly.

The browser-only workflow

The GPX Viewer & Editor loads your GPX file locally, renders it on a Leaflet map, and shows distance and elevation stats. You can then:

1. Drag the trim sliders to cut a percentage off the start and end.
2. Split the remaining track into N segments and download each as a separate GPX.
3. Re-export with original metadata preserved.

Because everything runs in the browser, large files (multi-hour rides, ultras) don't need to be uploaded. The tool handles single-track and multi-track GPX.

What about waypoints and routes?

Most fitness exports are tracks (`<trk>`). If your file is a route (`<rte>`) from a planner like Komoot or Strava, the editor reads both. Waypoints (`<wpt>`) are preserved on export.

When to use a desktop tool instead

For very advanced surgery — merging files, recalculating elevation against a DEM, smoothing — desktop tools like GPSBabel or GpxStudio still win. But for the 90% case (trim, split, share), the browser is faster.

Related tools

• KML ↔ GPX Converter — if your file came from Google Earth.
• GPX Photo Sync — match photos to a track by timestamp.
• Reverse Geocode Batch — turn the coordinates back into addresses.

Open the GPX editor and drop a file in — there's no signup and nothing leaves your machine.