Discover the Best Open-Source Collaborative Projects Sorted by Stars

A scalable, distributed, collaborative, document-graph database, for the realtime web

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

Shared data types for building collaborative software

Collaborative office suite, end-to-end encrypted and open-source.

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

Efficient and minimal collaborative code editor, self-hosted, no database required

Share your workspace with team members and collaborate on code in real time in Atom

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

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.

General purpose plain text editor for macOS. Widely known for its live collaboration feature.

Next RecSys Library

This is the repository of our article published in RecSys 2019 "Are We Really Making Much Progress? A Worrying Analysis of Recent Neural Recommendation Approaches" and of several follow-up studies.

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

Factorization Machine models in PyTorch

Textbus 是一个组件化的、数据驱动的富文本框架，支持在线协同编辑，同时也可以作为一个开箱即用的富文本编辑器，拥有非常好的扩展性和可定制性，是构建复杂富文本的不二之选！

A rich text editor that supports collaborative editing and allows for the free use of front-end common libraries such as React and Vue to extend and define plugins.

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