Parti
Create & Play with friends
Parti is a web platform and runtime for creating and playing multiplayer interactive rooms. Start from a template or import your own room code, then invite friends with a link or QR code. Room creators write HTML and JavaScript; the runtime handles state sync, networking, sandboxing, and reconnect recovery.
It uses a host-authoritative model: players send action intents, and a Worker in the host's browser keeps the single source of truth and syncs results to everyone. The host connects to players over WebRTC and can distribute room code peer to peer. Invites support links, QR codes, a 4-digit passcode, and an optional public lobby.
Room UI runs in a sandboxed iframe; authoritative logic runs in the host's Web Worker. Hosts can refresh and restore the session; players who refresh or briefly disconnect keep their identity and seat. Built-in rooms include chat, counter, word guessing, snake, and Dou Dizhu — ready to play out of the box.
Features
- Create and import rooms from templates, ZIP, or GitHub
- Instant multiplayer over WebRTC from the host browser
- Invite via link, QR code, or 4-digit passcode
- Authors write actions and state; the runtime syncs
- Sandboxed iframe UI and host Worker isolation
- Recover sessions after host or player disconnects