Practice ASL with AI Coaching
Pick a sign, watch the reference video, try it on camera, and get instant feedback on your handshape, movement, and location — powered by ASL-LEX linguistic data.
Browse 2,500+ Signs →1.
Watch
Select a sign and watch the reference video to see the correct form.
2.
Practice
Turn on your camera and sign it. MediaPipe tracks your hand landmarks in real time.
3.
Improve
Get AI coaching that compares your attempt against ASL-LEX phonological ground truth.
How it works
- MediaPipe detects 21 hand landmarks per hand in your browser — nothing is uploaded to a server.
- ASL-LEX 2.0 provides the linguistic ground truth: handshape, movement, location, and more for each sign.
- AI coaching compares your detected features against the reference data and gives specific, actionable tips.