GPX HubImport the file
Open GPX Hub, choose a GPX file, and fit the complete route on the map. Check its start, finish, distance, and segments.
GPX GUIDE
Edit GPX files with confidence
A practical guide to cleaning GPS tracks, adding useful route information, checking elevation, and preparing files for running, cycling, and hiking devices.
How to edit a GPX file
Keep the original file as a backup, then follow these steps in the browser.
Correct the route
Select the track, zoom into incorrect sections, drag misplaced points onto the correct path, and remove isolated GPS spikes.
Save a copy
Add waypoints or elevation when needed, save with a new file name, and reopen the result before transferring it to another app or device.
Fix misplaced GPS track points
Buildings, valleys, forests, and tunnels can cause recorded points to jump away from the real path.
Position is wrong, sequence is correct
Drag the point when the recording order is correct but its coordinates sit beside the road or trail. Keep curves smooth between the neighboring points.
A single point creates a large spike
Delete an isolated point when it produces an unrealistic triangle. After deletion, verify that the new line between adjacent points does not cut across terrain.
Editing tip: Make small changes at a high zoom level. Removing too many points can turn switchbacks and road curves into inaccurate straight lines.
Add and review elevation
GPX elevation values may come from a GPS sensor, a barometer, or a terrain model—and they will not always match.
Fill terrain elevation
Use Fill Elevation when the file has no elevation or every point is near zero. The route coordinates are sent to the elevation provider and returned values are written to the track.
Inspect the profile
Move across the elevation chart and compare the indicator with the map. Sudden large changes can reveal a misplaced track point, bridge, tunnel, or terrain-model limitation.
Elevation gain differs among Strava, Garmin, watches, and GPX tools because each service uses different sources and smoothing rules. Compare the shape and major climbs rather than expecting identical totals.
Create useful waypoints
Waypoints are named locations such as water stops, summits, trail junctions, parking areas, or hazards.
Choose Add Waypoint, click the correct location, and use a short name that remains readable on a small GPS screen. Confirm that the marker aligns with the route distance and elevation. Device support varies: some Garmin workflows import GPX waypoints as saved locations rather than course points.
Keep them selective: Too many waypoints create noise. Prioritize locations where the user must make a decision, resupply, or pay attention to safety.
Prepare Strava exports and device routes
An activity recording and a navigation route serve different purposes.
- Trim movement before the actual start and after the finish.
- Remove home and workplace coordinates before sharing.
- Correct GPS spikes and add meaningful waypoints.
- Preserve the original activity if time, pace, and sensor data matter.
- Use a simplified copy for devices with file-size or point-count limits.
Edited activity files can retain timestamps that no longer match the changed geometry. Treat the edited copy primarily as a route for planning and navigation, not as a replacement for the original performance record.
Split and simplify large tracks
Long recordings may contain tens of thousands of points.
Split a track to remove private start and finish sections or separate multiple days. Simplify a copy to reduce redundant points while preserving turns, junctions, and switchbacks. Always compare distance and route shape after simplification, and test the saved file in the intended GPS device before an activity.