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Build collaborative applications with Yjs

Creating collaborative applications should be easy. Yjs exposes Shared Types that can be manipulated like any other data type. But they sync automatically!

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The library for realtime collaboration

Automatic Syncing

Build collaborative applications with shared types. They work just like normal data types, but they sync automatically!

Offline Support

No more waiting for slow connections. The shared data can be stored in a local database (e.g. indexeddb) and will be available right away. Render the information you have and sync later.

Network Agnostic

Yjs does not require a central server for coordination. Decentralized systems are faster, easier to scale, and more fault tolerant.

Yjs Ecosystem

Yjs integrates well with other technologies. We have a rich ecosystem of ready-to-use integrations with popular editor libraries and web frameworks.

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The Yjs Ecosystem

Libraries for every part of your stack.

The Client Layer

Sync your app state using shared types, implement awareness features using the Awareness CRDT, and make existing UI libraries & rich-text editors collaborative using editor bindings.

Shared data types Awareness CRDT Bindings for editors and UI Frameworks

The Connection Layer

Yjs is network agnostic and can sync through any communication protocol.

y-websocket y-webrtc matrix-crdt ..more

The Persistence Layer

Persist shared state in different databases.

y-indexddb y-leveldb y-redis ..more

Language Bindings

Yjs has been ported to other languages.

Yrs Yrb Yswift Yffi Ywasm Y_ex pycrdt Y-Octo ydotnet yr ykt ygo

Services

Companies that provide services for Yjs.