Etherpad: A modern really-real-time collaborative document editor.

A drop-in javascript spreadsheet library that provides rich features like Excel and Google Sheets

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

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.

open source audio and video transcription software

Mindmapping made simple: Host and create your own mindmaps. Share your mindmap sessions with your team and collaborate on mindmaps.

ERD Online is an online collaborative data warehouse design software. It does not need to install applications locally and operate databases online. It is an excellent alternative to desktop data modeling tools.

An online blackboard 🖉 with fridge magnets 🌈🧲 for teaching, and making animations 🏃 and presentations ⎚. All of that in a lightweight user interface, and without coding.

a scalable collaborative document editor with CRDT, P2P and E2EE

🎈 PartyKit ⤫ Remix 💿

xnote 是一个无头、高性能的富文本编辑器，支持多人在线协作。

Main Stooa's repository. The online fishbowl tool.

A delta-state block-wise sequence CRDT

Idea Forge is an AI-powered tool for writing and collaboration, enhancing creativity, productivity, and seamless teamwork

Collaborative IoT framework in JavaScript/TypeScript for Node.js and browsers.

low-latency jamming space for musicians

Boardsite is a productivity app for taking notes, annotating documents and collaborating with friends on any device with a browser.

Morpheus is an open-source project that offers a creative and innovative platform for generating stunning artworks using image editing and stable diffusion models.

NPMChat is an open source, real-time chat platform for developers and teams. Built with the MENN stack (MongoDB, Express, Next.js, Node.js), it features collaborative code editing, live interview mode, file sharing, code execution, and more—all in a beautiful, modern UI. Perfect for learning, collaboration, and building together.

For collaboration between R&D teams and AI agents