Combine multiple GPX files into one continuous track. Processing happens locally.
Watch or phone recorded your run in two parts because you stopped for lunch? Ran the same trail across multiple days? Merged GPX files give you a single continuous track with complete stats — total distance, total ascent, and an unbroken elevation profile.
Many GPS devices also split long recordings at file-size limits or midnight boundaries. Merging restores the full activity so you can share it, import it into Strava or Garmin, or analyze it in the TrailSplits planner.
The tool reads each GPX file in the order you arrange them, extracts all track segments, and concatenates them into a single <trk>. Timestamps (if present) are preserved in sequence. The output is a standard GPX 1.1 file compatible with every major platform.
Your GPX files stay in your browser. Nothing is uploaded.