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GoPro telemetry overlay — auto-synced, in your browser

GoPro records motion data inside the .mp4 (its GPMF metadata stream). LapLift reads that motion track out of your GoPro file — in your browser — and uses it to line the footage up with your logger data automatically, so you can scrub the two together and export a clip with a telemetry overlay baked in.

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Files LapLift accepts

.mp4 (GoPro, with GPMF telemetry)
A GoPro Hero or Max clip straight off the camera (GH…, GX…, GL… or GP… .mp4). GPS/telemetry must have been on when you recorded. Chapters of one long recording can be uploaded together and stitched into a single timeline.

What LapLift reads from your video

AccelerometerGyro

LapLift reads the motion data GoPro embeds in the clip (its GPMF stream) and matches it against your logger's motion to find the exact offset. The camera supplies the video and the motion track used to align it — your speed, throttle, delta and corner data still come from your logger. In a modern browser the motion data is read straight off the file on your device, so the footage itself never has to be uploaded to sync it.

What you can do

Overlay a faster driver
Stack your lap on top of any lap shared with you. A time-delta trace shows exactly where you gain and lose, corner by corner.
See your line and corner speeds
Your GPS trace becomes a track map with the speed you carried through every corner, so you can see where the time really goes.
Auto-sync your video
One click lines GoPro or DJI footage up with your data. Scrub the trace and the video follows, frame-accurate — no nudging footage by hand.
Build a Theoretical Best lap
LapLift stitches your fastest sectors into one ideal lap, so you know what the session was actually worth.
See how you stack up
Compare against other drivers on the same track with crowd percentiles — where you rank overall and corner by corner.

Questions

Do I need GoPro Quik or any GoPro software?

No. Upload the GoPro .mp4 straight from the camera or SD card and LapLift reads the telemetry out of it in your browser.

Does my GoPro video get uploaded?

In a modern browser, no — the motion data is read directly from the file on your device to line it up with your data, and the footage stays with you. Only if your browser can't do that in-browser read does LapLift fall back to uploading the file for extraction.

Which GoPros work?

GoPro Hero and Max cameras that record GPS/telemetry — the GPMF metadata GoPro embeds in the .mp4. Turn GPS on in the camera before recording.

Can I use just a GoPro, with no data logger?

The GoPro provides the video and the motion track used to sync it, but the telemetry you analyze and overlay — speed, throttle, delta, corner speeds — comes from your logger. Bring both for the full picture.

My recording is split into several files — is that a problem?

No. Upload the chapters of one recording together and LapLift stitches them into a single timeline before syncing.

Free, in your browser. Nothing to install.

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