The Swing Lab

Slow-motion swing analysis

Load a swing video from your phone or computer. Nothing is uploaded — analysis happens entirely in your browser. Slow it down, step frame-by-frame, draw plane lines and measure angles. Want a coach's eye on it? Book a Remote Swing Review.

NO CLIP · 0.25× · 0:00.000 · F0

Drop a swing video hereorChoose a video

Best capture5–10 seconds · frame the full bodyRecord face-on or down-the-line

MP4 / MOV / WebM · stays on your device

PlaybackDrawExport

▶ Play

1×½×¼×0.1×

⟨ FrameFrame ⟩

0:00.000 / 0:00.000

0:00.000 / 0:00.000

Canvas keyboard: choose Line, Angle or Circle, focus the canvas, move the crosshair with arrow keys (Shift moves 10px), and press Enter to place each point. Escape cancels. Freehand is pointer-only.

Keyboard drawing is ready when a clip is loaded.

Angles measured

Use the Angle tool: place the vertex, then two arm points.

Keyboard shortcuts

Outside the canvas: Space play / pause, ← / → step one frame, Z undo, C clear.