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Webcam games / Perfect circle

Draw a perfect circle.
Without touching the screen.

Your hand, your webcam, one satisfyingly simple challenge. How close can you get to 100%?

Air canvasCamera off
Your fingertip is the pen.
One hand. One loop.

Can you draw a perfect circle?

  1. Set your phone down or use your laptop. Point your index finger and find the white dot.
  2. Press Draw a circle. Get into position during the 3-second countdown, then draw with your finger. No pinch needed.
  3. Return to the start to finish automatically. You have up to 8 seconds.

No sign-up. Camera frames stay on your device. Exports contain only your drawing and score.

How the circle score works

After a 3-second countdown, WorkPose records the same index-finger position shown by the pointer. Draw one loop and return to the start. Recording stops automatically as soon as the loop closes. You can also press Finish circle; recording ends after 8 seconds at most. No pinching is required.

Your line is sampled evenly and compared with its estimated center. A smoother, rounder loop with a neatly joined start and end earns a higher score. Small strokes, incomplete loops, and multiple revolutions need another attempt. Tracking loss interrupts the attempt. Camera angle, perspective, lighting, and hand tracking affect the result; this is a drawing game, not a measure of coordination or health.

Keep your circle—or share it

Your camera stops when the attempt ends. The replay stays in this tab, and the numerical result is saved in this browser. Download a card containing only your drawing and score, or send a friend a link with a score to beat. Shared scores are self-reported, not a verified leaderboard.

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