Livepeer UI Kit (livepeerjs) is a TypeScript‑ready React component library that provides composable video/audio primitives—supports low‑latency WebRTC and HLS playback, broadcast streaming, accessibility features, and a foundation for custom media players. It targets front‑end developers building streaming or video‑centric web applications who want ready‑made, test‑covered components for integrating Livepeer’s streaming infrastructure.