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How many lessons, reviews or practice rounds a day?

Videos, drawings and arrows are shown like a mirror: copy exactly what you see. Pick the hand you write with, and the signing hand appears on that side of the screen.

0 XP · 0 lessons · 0 signs

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Handful teaches American Sign Language (ASL), a small handful of signs a day. The sign descriptions are drafts that still need to be checked by a Deaf ASL signer. Some signs have videos, with more to come.

This is an early version. Things may change, and the camera is a practice guide, not a grade. It can't judge signing the way a Deaf teacher can.

Your privacy: the camera check runs on your own device. Video is never recorded, saved or sent anywhere, and there are no accounts. Your progress is saved only in this browser.

Sign videos, and the hand-shape data the camera uses to check word signs: (ASL Signbank, 2026), videos shown mirrored in right-hand view, used with thanks under CC BY-NC-SA 4.0. Hochgesang, J. A., Crasborn, O., & Lillo-Martin, D. (2026 (2017-2026)). ASL Signbank. aslsignbank.com.

Handshape drawings: letters by wpclipart.com (public domain); numbers 1–9 by Snailsmakemehappy, licensed CC BY-SA 4.0, via Wikimedia Commons.

Camera check: hand tracking by Google MediaPipe (Apache 2.0). The fist-letter model (A, E, M, N, S, T) was trained on the ASLNow! hand-landmark set (MIT license), sid220/asl-now-fingerspelling. Your video never leaves your device.

Handful is open source. Source code: github.com/xingyou07/handful