A next-gen knowledge base that brings planning, sorting and creating all together. Privacy first, open-source, customizable and ready to use - a free replacement for Notion & Miro

Realtime application framework (Node.JS server)

Reactive Offline-first Database with Sync, Schema, Mongo-Query, Encryption, LevelDown

`ws`: The fastest RFC-6455 WebSocket implementation for Node.js

Shared data types for building collaborative software

A realtime, decentralized, offline-first, graph database engine.

Highly scalable WebSocket server library

Database inspired by Apache CouchDB that is designed to run well within the browser.

Build Better APIs, Faster than Ever

The Open Source Firebase Alternative with GraphQL

An open-source social news app built with Meteor & React

The open realtime server

⚔ Multiplayer Framework for Node.js

Horizon is a realtime, open-source backend for JavaScript apps.

Realtime database backend based on Operational Transformation (OT)

Highly scalable realtime microframework

Open-source platform for collaboration

a toolkit for building realtime APIs

Collaborative editing in any app

Library for building distributed, real-time collaborative web applications

Simplest WebRTC ever

A set of open-source packages for building performant and reliable multiplayer experiences

WebRTC - P2P - Simple, Secure, Fast Real-Time Video Conferences Up to 4k and 60fps, compatible with all browsers and platforms.

Engine.IO is the implementation of transport-based cross-browser/cross-device bi-directional communication layer for Socket.IO.

There are a lot of real-time frameworks available for Node.js and they all have different opinions on how real-time should be done. Primus provides a common low level interface to communicate in real-time using various real-time frameworks.

Faye is a set of tools for simple publish-subscribe messaging between web clients. It ships with easy-to-use message routing servers for Node.js and Rack applications, and clients that can be used on the server and in the browser.

Next-generation state management framework based on reactive SQLite and built-in sync engine.

WebRTC - SFU - Secure, Simple, and Scalable Real-Time Video

The Yjs CRDT WebSocket backend for conflict-free real-time collaboration in your app.