There can be more than Notion and Miro. AFFiNE(pronounced [ə‘fain]) is a next-gen knowledge base that brings planning, sorting and creating all together. Privacy first, open-source, customizable and ready to use.

A fast, local first, reactive Database for JavaScript Applications https://rxdb.info/

Shared data types for building collaborative software

An open source cybersecurity protocol for syncing decentralized graph data.

A JSON-like data structure (a CRDT) that can be modified concurrently by different users, and merged again automatically.

Read-path sync engine for Postgres that handles partial replication, data delivery and fan-out.

Berty is a secure peer-to-peer messaging app that works with or without internet access, cellular data or trust in the network

Peer-to-Peer Databases for the Decentralized Web

Broadcast, Presence, and Postgres Changes via WebSockets

🧩 Content editing tech stack for the web - BlockSuite is a toolkit for building editors and collaborative applications.

Make your JSON data collaborative and version-controlled with CRDTs

Library for building distributed, real-time collaborative web applications

Open-source and local-first Slack and Notion alternative that puts you in control of your data

Liveblocks gives you the building blocks and infrastructure to enable people and AI to work together inside your app.

Convergent, Replicated SQLite. Multi-writer and CRDT support for SQLite

A full-stack, syncing database that runs on both server and client. Pluggable storage (indexeddb, sqlite, durable objects), syncs over websockets, and works with your favorite framework (React, Solid, Vue, Svelte).

A new kind of database that's distributed across your frontend, containers, serverless functions and its own storage cloud.

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

Rust port of Yjs

🐙 OctoBase is the open-source database behind AFFiNE, local-first, yet collaborative. A light-weight, scalable, data engine written in Rust.

SyncedStore CRDT is an easy-to-use library for building live, collaborative applications that sync automatically.

TypeScript library and local-first platform

The world's fastest CRDT. WIP.

Peer-to-peer, editor-agnostic collaborative editing of local text files.

a collection of well-tested, serializable CRDTs for Rust

@IceFireLabs -> IceFireDB is a database built for web3.0 It strives to fill the gap between web2 and web3.0 with a friendly database experience, making web3 application data storage more convenient, and making it easier for web2 applications to achieve decentralization and data immutability.

json-joy is a library that implements cutting-edge real-time and collaborative editing algorithms and utilities for JSON data models, with a focus on developing the JSON CRDT (Conflict-free Replicated Data Type) specification and implementation.

A realtime CRDT-based document store, backed by S3.

The vibe coding database runs in the browser, fits in the context window, and syncs anywhere.

A highly-configurable, distributed, realtime database that manages a state tree shared among many peers.