Playroom Kit gives you everything you need to make your app multiplayer without running your own backend.

It handles rooms, shared state, and participants so multiple people can see and interact with the same experience in real time. You focus on building your product. Playroom handles the multiplayer layer.

Use it for collaborative UIs, shared canvases, whiteboards, dashboards, games, and any multi-user app where people need to work together instantly in the browser.

It works whether you are a solo developer shipping a side project, a small studio building a multiplayer game, or a large team adding collaboration to an existing SaaS product.

If you want to see it in action, start with the Live Cursors guide or explore all Guides to build your first real-time feature.

Why Playroom Kit?

You might ask: why use Playroom Kit when tools like Supabase Realtime, Firebase Realtime, Liveblocks, or PartyKit already exist?

Playroom Kit is not trying to replace your backend.

It is designed to be the simplest possible way to add collaborative features to your app.

If you are building a SaaS product, a dashboard, or a game, you likely already have authentication, APIs, and a database. What you may not have is an easy way for multiple users to share the same interactive experience in real time.

That is where Playroom fits.

It acts as a focused multiplayer layer that interoperates with your existing stack. You keep your backend. You keep your architecture. Playroom simply handles the collaborative layer.

If you want to understand how this works under the hood, read Shared State Primitives or Rooms and Sessions.

Built with Playroom Kit

Playroom Kit powers collaborative experiences across games, tools, and multi-user products.

Can’t see yours? Submit a PR here.