A free ASL learning platform
Connecting the world, one sign at a time.
Mastered is a free, browser-based home for learning American Sign Language — built so anyone, anywhere, can begin.
Continue practicing →No card. No noise. Just sign up.
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Free, for everyone.
No paywalls, no subscriptions, no premium tiers. Anyone with a browser and a camera can sign up and start learning today.
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So no child goes without.
Every child who needs ASL deserves an education in it. We exist so that access stops being a question of cost or geography.
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Mastery you carry out.
The app's job is to get you ready and then get out of the way. Mastered signs leave your rotation so your time can leave the app.
Built on 147 vocabulary signs sourced from WLASL, the open word-level American Sign Language corpus, plus Lifeprint canonical references.
Open data. Open mission. A pilot, growing into a public good.