Build a TikTok LIVE Stream Overlay for OBS with Node.js

Custom stream overlays that react to real-time TikTok events — gifts, chat, viewer counts. Here's how to build one with Node.js and a transparent HTML page as an OBS Browser Source. Architecture TikTok LIVE → tiktok-live-api (WebSocket) → Node.js Server → Local WebSocket → OBS Browser Source Step 1: Set Up mkdir tiktok-overlay && cd tiktok-overlay npm init -y npm install tiktok-live-api ws express mkdir public Step 2: Server Create server.mjs : // server.mjs import { TikTokLive } from ' tiktok-live-api ' ; import { WebSocketServer } from ' ws ' ; import express from ' express ' ; import { fileURLToPath } from ' url ' ; import { dirname , join } from ' path ' ; const __dirname = dirname ( fileURLToPath ( import . meta . url )); const app = express (); app . use ( express . static ( join ( __dirname , ' public ' ))); app . listen ( 3000 , () => console . log ( ' Overlay at http://localhost:3000 ' )); const wss = new WebSocketServer ({ port : 8080 }); const client = new TikTokLive ( ' USE