Learn 262 Indian Sign Language signs from Deaf signers
दर्पण means mirror. SignDarpan shows you a real Deaf signer, then watches you on your webcam and coaches your handshape, place and movement.
For hearing families of Deaf children. Free and non-commercial.
Mother, signed by a Deaf signer. INCLUDE dataset, AI4Bharat, CC BY 4.0.
Real Deaf-signer video · runs in your browser · your camera never leaves your device.
Why this exists
- 90–95% of Deaf children are born to hearing parents who don't sign.
- Birth to 5 is the language window. Delay here causes lasting harm.
- There is about 1 working ISL interpreter for every 20,000 Deaf people. Families must learn it themselves.
So the bottleneck isn't translation — it's a family learning to sign right, quickly. That's the gap SignDarpan fills.
From the dictionary
Every sign taught by a real Deaf signer.
How it works
Hello, signed by a Deaf signer. INCLUDE dataset, AI4Bharat, CC BY 4.0.
Watch a real signer. Every sign is demonstrated by a real Deaf signer — never an avatar, never invented.
Mirror it. Your webcam puts you beside the teacher, with a target outline to fit your hand into.
Get coached. An on-device check compares your handshape, place and movement and gives a plain tip.
Built with care, not hype
- Free & non-commercial. No charge, no ads, no selling data.
- Real Deaf-signer content. Videos from the AI4Bharat INCLUDE dataset (CC BY 4.0).
- Private by design. The webcam runs entirely in your browser; video never leaves your device unless you switch on “Check my take”, which sends that one recording for a sign-name check and deletes it right after.
- Honest. A self-check coaching aid — not a replacement for a Deaf teacher or interpreter.
The dictionary
262 Indian Sign Language signs — tap any one to practise it.
No signs match that.
Type what you want to say
We find each word in the 262 signs and teach them in order. We never guess a sign we don't have.
Signs to learn
Still expanding our directory — not available yet
We're still expanding our directory — none of those are available yet. Try the Dictionary, or a word like HELLO.
VIDEO_BASE_URL in js/config.js.Every camera and every signer is different — teach the AI yours. Tap "Teach the AI your signing" once per sign: 3 quick takes teach it your hands, your camera and your room, so it can recognise you.
- Watch the teacher video first, then sign the same sign, honestly, all 3 times — the takes teach the AI, so a wrong take teaches it wrong.
- Keep your head, shoulders and hands in the picture for the whole sign — the note on the camera tells you when they are.
- Sign it the way you naturally would — your size, your speed. The AI is learning your signing, so natural beats perfect.