STRIDEOVERLAY .COM

Add a GPX overlay to your running videos

Add your files

Sync & style

Show metrics

Choose a graph of the current part of your run or a larger route map showing your live position, start and finish.

A PNG with a transparent background works best. It stays on this device and is added to the exported video.

Add an activity file to use lap markers.

Export settings

Original video audio is kept. DJI MOV/MP4 recordings with AAC sound are supported. Audio follows clip trims, splits and order. If a codec is unsupported, export stops instead of producing a muted video.

Add a video and GPX file to begin.

Videos are processed in your browser. On iPhone, use the share sheet and choose Save Video to add the export to Photos; downloading an MP4 typically saves it to Files or Downloads. High quality requires more processing power and storage.

Live preview

Video editor Add a video
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Split the video, then choose a transition to preview it at a cut.

Export joins the kept slices. GPX timing follows the original video.

Clips join on one timeline. Select a section to adjust its GPX time, or use + to add the next clip.

Where do I get my activity file?

Download the recorded activity from your watch or running app, then upload it here.

Which format should I use?

FIT

Best for recorded watch laps and splits. An original activity FIT file often preserves lap boundaries, heart rate and other sensor data.

TCX

Also good for lap data. TCX activity exports may contain recorded laps and heart-rate readings.

GPX

Great for the route and timing. Standard GPX exports often lack the watch’s recorded laps, so lap distance/time options may be unavailable.

Want lap splits? Choose Export Original / FIT first, or TCX if available. Export your recorded run, not a course or planned route. Laps only appear if the file actually contains lap records; the extension alone cannot guarantee them.

Where to export a file

Garmin Connect

On Garmin Connect (web), open Activities → All Activities → your run → settings gear. Choose Export Original (usually FIT), Export to TCX or Export to GPX.

Garmin help ↗
COROS

Open the recorded workout in the COROS app → top-right menu → Export Data. Choose FIT for the best chance of preserving laps if that option is available; otherwise GPX.

COROS help ↗
Strava

On Strava’s website, open your own GPS activity → the three-dot menu → Export GPX, or Export Original if available. Original files may preserve more detail than GPX.

Strava help ↗
Polar Flow or Suunto

In Polar Flow on the web, open your Diary → recorded session → Export and select an available activity format. In the Suunto app, open the saved workout → menu → export workout.

Polar help ↗ · Suunto help ↗

If your file lacks recorded laps, you can still use the GPS route and any metrics present in that file. Available data depends on the watch, the app and the export format.