# ASL Fingerspelling

> Learn ASL fingerspelling free with Fingerspell: all 26 letters A to Z, live feedback on your hand shapes from your phone camera, quiz mode, no account, no video ever leaves your device. Works offline.

*Interactive tool: enter your values at https://toollantern.win/learn-asl-fingerspelling/ and results update instantly in your browser.*

## Frequently asked questions
### Is Fingerspell free?

Yes. All 26 letters, the lessons, and quiz mode are completely free, with no account and no ads.

### Do I need to create an account?

No. There is nothing to sign up for. Your progress is stored only in your own browser.

### Does my camera video leave my device?

No. Your camera feed is analyzed on your device and never sent anywhere. The page's security policy blocks all connections to outside servers, and there is no analytics or recording.

### How does the app check my hand shapes?

A hand-tracking model runs entirely in your browser and finds your hand's joints in each camera frame. The app compares the joint positions against the target shape for each letter and shows one specific hint at a time until the shape is right.

### How do J and Z work?

J and Z are the two letters with movement. J starts as an I hand and traces a J in the air; Z starts as a D hand and traces a Z. The app tracks your fingertip's path and only passes the letter when the movement has the right shape.

### Is this real ASL?

The manual alphabet is a genuine part of American Sign Language, used to spell names and words with no sign yet. Fingerspell is a home practice tool, not a substitute for learning from Deaf teachers and the Deaf community.

### Does it work offline?

Yes, after your first visit. The app saves itself to your device and then runs fully offline, including the camera feedback.

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Interactive version: https://toollantern.win/learn-asl-fingerspelling/