An app that turns sign language into speech and speech into sign, so a deaf or mute person never waits for an interpreter.
When you are hurt, typing “call an ambulance” is too slow. SignBridge speaks the moment you tap, even with no internet.
12 emergency phrases in 11 Indian languages. Tap one and the phone says it out loud and fills the screen, so you can hold it up to anyone nearby.
SOS counts down 10 seconds. If nobody cancels, it sends your live location, name and medical note to your family on Telegram by itself, and gives one-tap SMS and call buttons for 112. It still works if you cannot move.
Nine tools in one app. The camera, microphone and speech all run in your browser.
Sign to the camera. Our model, trained on the INCLUDE ISL dataset, recognises 50 Indian Sign Language words and says them out loud.
Someone speaks. Their words appear large, and our own AI translator signs them back in ISL or ASL, using real signs from the official Indian Sign Language Dictionary.
Show the camera the problem. It guesses what's wrong, you check the guess, and it gets the alert ready.
Type or dictate, then say it in any of 11 languages, each in its own script.
Subtitles for any video, with the avatar signing along in the corner.
A chat helper powered by Claude AI. Ask about the app, sign language or emergency numbers. With no internet, a built-in brain still answers.
Uses your location and OpenStreetMap to list the nearest hospitals, police and fire stations.
One tap films 15 seconds of video and sound, and keeps the clip on your phone as proof.
No ads, cookies or tracking. Your contacts stay on your phone, and camera video never leaves it.
Everything in the emergency flow runs on the phone itself. There's no server to wait for, no sign-up and no signal needed.
Three steps, and the first two never leave your phone.
MediaPipe finds 21 landmarks on your hand in every frame of the camera feed, right on the device.
Our neural network, trained on 929 videos from the INCLUDE-50 ISL dataset (AI4Bharat, IIT Madras), reads the movement over time and picks one of 50 words.
The word is spoken aloud in your language. ElevenLabs and Sarvam AI add natural voices when a server is connected.
Stack: HTML, CSS and JavaScript · Node.js · MediaPipe · Whisper · Google Translate · ElevenLabs · Sarvam AI · Namecheap · Cloudflare. Read the accessibility statement
19 engines work together. The ones in the first group run on your phone, so the emergency flow never waits for the internet.
Mentored by Sugeet Malhotra. Write to us at lingolinkofficial@gmail.com.
Install SignBridge on your phone or laptop. It opens full screen like any app, and Emergency works with no internet.
Open this site in Chrome or Edge and tap the button. SignBridge gets its own icon on your home screen.
With the APK, allow “Install unknown apps” for your browser when Android asks.
Open this site in Safari, tap Share , then Add to Home Screen.
Show me howAfter the first visit, the 12 emergency phrases and SOS keep working in airplane mode.
Open SignBridge in your browser. No download, no sign-up.
SignBridge is a communication aid made by students. It is not a medical device or an emergency service. In an emergency, call your local number (112 in India) whenever you can. AI guesses and translations can be wrong.