Swrrl - Tennis Stroke Clips

Auto-detect every forehand, backhand & serve in your tennis video. No login, no cloud upload, fully offline. Just set up your camera and start swinging.

Swrrl automatically finds every forehand, backhand, and serve in your tennis video — then cuts each stroke into its own clip, tracked and centered on you.

HOW IT WORKS Film yourself hitting on the court — a match, a practice session, drills against a wall, ball machine reps, or doubles. Import the video into Swrrl, and it does the rest: detecting each stroke, tracking the moving player, and generating clean, centered clips of every shot.

BUILT FOR STROKE ANALYSIS Want to check your forehand? Just set up a tripod, hit freely, and let Swrrl handle the editing. It automatically separates your best strokes from the mishits, so you can compare them side by side, slow them down, and zoom in on the details that matter — grip, contact point, follow-through.

No need to stay centered in frame or worry about drifting off camera. Swrrl's player tracking follows you automatically, keeping every clip framed and zoomed just right.

WHY SWRRL • No account, no sign-up — open the app and go • Fully offline — works right on the court, no internet needed • Nothing uploaded — your videos never leave your device • No data collection — your privacy stays yours • Simple by design — set up your camera, hit some balls, and let Swrrl do the rest

Whether you're refining your serve toss, comparing your best forehands, or just reviewing a practice session, Swrrl turns raw footage into clips you can actually learn from.