TensorFlow.js Expression Detector
Browser-based real-time emotion recognition, no server-side inference.
Overview
Real-time facial expression detection running entirely in the browser via TensorFlow.js, so no video frame ever leaves the client.
Why I built it
Wanted to see how far client-side ML inference could go for a latency-sensitive, privacy-sensitive task like facial expression detection, without a server round-trip per frame.
Architecture
Vanilla JavaScript, TensorFlow.js for in-browser model inference against the webcam feed, no backend.
Client (only)vanilla javascript · tensorflow.js · webcam via getUserMedia
Challenges
Keeping inference fast enough for a smooth real-time feel entirely on the client's hardware, with no server to fall back on for the heavy lifting.
Outcome
Live demo running real-time expression detection fully client-side.
Tech used
javascripttensorflowjs