Liveblocks is a developer-first real‑time collaboration engine that provides customizable, ready‑made features—such as multiplayer editing, live cursors and presence, contextual comments, smart notifications, and integrated AI copilots—enabling teams to embed rich collaborative experiences directly into web applications. It handles persistence, sync, streaming, WebSocket infrastructure, offline support, conflict‑free CRDT‑backed data storage (with multiplayer undo/redo), and scalable hosting across rooms and projects. Featuring modular React and JavaScript SDKs, you can drop in components (chat, comments, toolbar, notifications) and launch in days instead of months. With Liveblocks 3.0, embedded AI copilots bring context-aware, in-app AI agents that can chat, take actions, and collaborate alongside users.