What is PartyKit used for?

PartyKit is a hosted platform that simplifies building multiplayer applications and adding real-time experiences to existing projects. It is a good fit for building multiplayer games, adding live polls or chat to web apps and creating collaborative text editors.

Is PartyKit open source?

Yes. PartyKit is open source under the MIT licence. Its source code is on GitHub at partykit/partykit and is written mainly in TypeScript.

Yes. PartyKit is open source, so the software itself is free to use. A managed cloud version is also available.

Can I self-host PartyKit?

Yes. PartyKit can be self-hosted on your own server or infrastructure.

What is PartyKit an alternative to?

PartyKit is an open-source alternative to Liveblocks. Other open-source alternatives to Liveblocks include Nakama, Centrifugo and Deepstream.io.

Is PartyKit actively maintained?

Yes. The most recent commit to PartyKit was on 9 October 2026. The project has 5.7k stars on GitHub.

PartyKit: open-source alternative to Liveblocks

About PartyKit

PartyKit is a platform designed to simplify the development of multiplayer applications. It allows developers to focus on building multiplayer features or adding real-time experiences to existing projects with minimal code.

The platform provides tools such as a CLI, server API, client API, and Yjs integration for collaborative editing. It supports WebSocket servers, authentication, storage, and deployment to Cloudflare accounts.

Key features

Simplifies multiplayer app development
Add real-time experiences with as little as one line of code
Provides PartyKit CLI for development
Includes Party.Server API for server-side logic
Includes PartySocket client API for WebSocket connections
Supports Y-PartyKit for Yjs collaborative editing

Good fit for

Building multiplayer games
Adding live polls or chat to web apps
Creating collaborative text editors

Built with: TypeScript tools
Tags: multiplayer; real-time; websocket; yjs; cloudflare

PartyKit: questions and answers

What is PartyKit used for?: PartyKit is a hosted platform that simplifies building multiplayer applications and adding real-time experiences to existing projects. It is a good fit for building multiplayer games, adding live polls or chat to web apps and creating collaborative text editors.
Is PartyKit open source?: Yes. PartyKit is open source under the MIT licence. Its source code is on GitHub at partykit/partykit and is written mainly in TypeScript.
Is PartyKit free?: Yes. PartyKit is open source, so the software itself is free to use. A managed cloud version is also available.
Can I self-host PartyKit?: Yes. PartyKit can be self-hosted on your own server or infrastructure.
What is PartyKit an alternative to?: PartyKit is an open-source alternative to Liveblocks. Other open-source alternatives to Liveblocks include Nakama, Centrifugo and Deepstream.io.
Is PartyKit actively maintained?: Yes. The most recent commit to PartyKit was on 9 October 2026. The project has 5.7k stars on GitHub.