Overview
Fingerspelling.xyz is a browser-based web app that lets you learn the ASL (American Sign Language) alphabet by practicing signs in front of your webcam. AI analyzes your hand pose and tells you in real-time whether you're signing the correct letter.
Why it's good
- Real-time hand tracking powered by Google's MediaPipe, running entirely on the client (browser) - no video leaves your device, fully private.
- No app install, no signup - just open and use.
- Free and open-source.
- Instant feedback helps you build correct muscle memory from day one.
Who it's for
- Anyone learning ASL (to communicate with the Deaf community).
- Teachers / parents who want a fun interactive way to teach kids sign language.
- Tech-curious folks - this is a great case study of MediaPipe applied to education in the real world.
Quick start
- Open the link above (Chrome / Edge work best for MediaPipe).
- Allow webcam access.
- Pick any letter - the app shows the reference sign.
- Mimic it - the app grades you in real-time.
Notes
- Decent lighting and a non-busy background help recognition accuracy.
- Works on mobile but FPS is lower than on desktop.
- This is a curated tool - not built by NateCue. Click the source button to use the original at fingerspelling.xyz.
Want to learn more about applied AI?
This tool is a textbook example of running an AI model directly in the browser instead of on a server. See the related Learn articles below for the architecture behind apps like this.
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