Collaboration Open Source Projects

Virtual whiteboard for sketching hand-drawn like diagrams

The Secure CommsOS™ for mission-critical operations

best way to save what you love

Mattermost is an open source platform for secure collaboration across the entire software development lifecycle..

☁️ Nextcloud server, a safe home for all your data

Zulip server and web application. Open-source team chat that helps teams stay productive and focused.

Shared data types for building collaborative software

Focus on what matters instead of fighting with Git.

⚡️⚡️⚡️ Self-hosted collaborative bookmark manager to collect, read, annotate, and fully preserve what matters, all in one place.

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

AI-powered development workspaces with reusable components, architectural clarity and zero overhead.

🦉 ML Experiments Management with Git

Open-source feature management platform

Instant messaging platform. Backend in Go. Clients: Swift iOS, Java Android, JS webapp, scriptable command line; chatbots

PLANKA is the Kanban-style project mastering tool for everyone

The AI developer platform. Use Weights & Biases to train and fine-tune models, and manage models from experimentation to production.

CodiMD - Realtime collaborative markdown notes on all platforms.

A complete web conferencing system for virtual classes and more!

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

HedgeDoc - Ideas grow better together

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.

Open Source Vulnerability Management Platform

A web based file manager,web IDE / browser based code editor

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

PartyKit simplifies developing multiplayer applications

Open-source office suite pack that comprises all the tools you need to work with documents, spreadsheets, presentations, PDFs, and PDF forms on Windows, Linux, and macOS

A list of SaaS, PaaS and IaaS offerings that have free tiers of interest to devops and infradev

Share and collaborate by syncing with any Git repository instantly. Linux, macOS, and Windows

Library for building distributed, real-time collaborative web applications

Realtime infrastructure for multiplayer apps and agents

Wireflow - user flow chart real-time collaborative tool

Research programming language for concurrent ownership

A map tool with real-time collaboration 🗺️

TerminusDB is a distributed, collaborative database designed for building, sharing, versioning, and reasoning on structured data.

Free open source office suite with business productivity tools: document and project management, CRM, mail aggregator.

🏆 Self-hosted, open-source WebRTC video conferencing platform for real-time communication and collaboration. A modern alternative to Zoom, built on SFU architecture.

An XMPP server licensed under the Open Source Apache License.

A tool to convert Swift code to Kotlin.

Pentest Report Generator

Lightweight Google-searchable Slack alternative for Communities

Command line tool to share your UNIX terminal and forward local TCP ports to people you trust.

A private, p2p alternative to Slack and Discord built on Tor & IPFS

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

Modern Confluence alternative designed for internal & external docs, built with Go + EmberJS

Open source video conferencing system for tutors.

Real-time collaborative development from the comfort of your favorite tools

Future-proof content collaboration platform

a Restful Api test tool

A simple and beautiful wiki for teams

Open-source developer content platform

Twake is a secure open source collaboration platform to improve organizational productivity.

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

Nightscout version of xDrip+

The Secure CommsOS™ for mission-critical operations

Design feedback and presentation platform

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

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，拥有非常好的扩展性和可定制性，可使用 Viewfly、Vue 或 React 直接渲染富文本，是构建复杂富文本的不二之选！

An open source, free, high performance, stable and secure Java Application Business Platform of Project Management and Document

Add-on for real-time collaboration in Blender.

A collaborative drawing program