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

Fast, collaborative live terminal sharing over the web

Automate code & data workflows with interactive Elixir notebooks

ONLYOFFICE Docs is a free collaborative online office suite comprising viewers and editors for texts, spreadsheets and presentations, forms and PDF, fully compatible with Office Open XML formats: .docx, .xlsx, .pptx and enabling collaborative editing in real time.

LibRec: A Leading Java Library for Recommender Systems, see

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

SQLSync is a collaborative offline-first wrapper around SQLite. It is designed to synchronize web application state between users, devices, and the edge.

Online collaborative Whiteboard that is simple, free, easy to use and to deploy

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

The ultimate list of which programs support Vim-like keybindings natively, or how they can be added with extensions. A collaborative project.

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

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.

Lightweight collaborative Whiteboard / Sketchboard

Typing in Tandem. Decentralized, cross-editor, collaborative text-editing!

Bonfire - tend to your digital life in community. Customise and host your own online space and control your experience at the most granular level.

A collection of multi agent environments based on OpenAI gym.

📑 Collaborative document editing using Markdown

Production Data Science: a workflow for collaborative data science aimed at production

Collaborative markdown with math

Open-Source, collaborative, digital Whiteboard