ROM & Motion Tracker

Place landmarks on a video and they are tracked across every frame with optical flow — measuring joint range of motion, pelvic tilt and shift, or the drift of any single point.

Runs entirely in your browser — videos never leave your device
  1. 1Load video
  2. 2Place points
  3. 3Track
  4. 4Review & save
Drop a video here, or click to choose a file
MP4 / MOV / WebM · processed locally, nothing is uploaded · faces are auto-blurred

Measurement

Film side-on. ROM is the change in the hip–knee–ankle angle (straight leg ≈ 180°).
Recovers lost points automatically; pauses for your help only after 16 bad frames in a row (~0.5 s).

No sessions yet — track a clip in the Track section, or import CSVs.

Sessions (0)

Tracked clips and imported CSVs appear here. They are saved in this browser, so your data is waiting when you come back.