Samenwerkingsplatforms

Mail server suite based on Dovecot, Postfix and other open source software, that provides a modern Web UI for administration.

File storage, syncing, sharing, and collaboration with real-time editing, permission management, and desktop/CLI clients.

Built from the ground up for speed. Flectar Mail delivers native performance, instant startup, and as little as 20 MB of RAM.

Bookmark and archive manager to store your useful links.

SOGo offers multiple ways to access the calendaring and messaging data. CalDAV, CardDAV, GroupDAV, as well as ActiveSync, including native Outlook compatibility and Web interface.

Communications platform that puts data protection first (alternative to Gitter.im and Slack).

Zulip is a powerful, open source group chat application.

File sharing + sync, notes, and photos (alternative to Nextcloud and ownCloud's RSS reader).

Platform for secure collaboration across the entire software development lifecycle, can be integrated with Gitlab (alternative to Slack).

Access and share your files, calendars, contacts, mail and [more](https://apps.nextcloud.com/) from any device, on your terms.

Self-hosted project management • Customizable boards • Cross-project workload and flow analytics • Calendar/Agenda • Sticky-note wall • Imports/Backups • Email notifications • MCP/Agent automation

Self-hosted collaborative workspace for Typst.

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

Collaboration suite with real-time messaging, rich text pages, file management, and dynamic databases - built for offline work (alternative to Slack, Notion).

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

AI-native design editor. Open-source Figma alternative.

Pentest Report Generator

Dradis Framework: Collaboration and reporting for IT Security teams

Python Exploitation Framework, V8 Engine Debugger, Proxy interceptor, marketplace, post-exploitation, backdoor generator,....

PartyKit, for Workers

excalidraw with collaboration feature, self-hosting, and only one-click deploy

The Secure CommsOS™ for mission-critical operations

Temporary rooms for Humans and AI Agents — run, supervise and steer Agent Tasks without a permanent workspace.

100% open source file storage, sharing, and collaboration

Software suite including calendars, address books, notepad, project management tools, client relationship management tools (CRM), knowledge management tools, a wiki and a CMS.

Library for building distributed, real-time collaborative web applications

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！

A collaborative drawing program

A reversing plugin for cross-decompiler collaboration, built on git.

Open Source Discussions Platform for Remote Teams

Open-source, self-hosted workspace with installable tools. Mail, boards, docs, chat, todos, files, calendar, and video rooms. Deploy with ONCE, Kamal, or Docker.

Self hosted web based collaborative video review tool

Shared data types for building collaborative software

LinShare - Secure File Sharing

ONLYOFFICE DocSpace is a room-based collaborative platform which allows organizing a clear file structure depending on users' needs or project goals. Flexible access permissions and user roles allow fine-tuning the access to the whole space or separate rooms.

Interactive whiteboard/wallpaper for the classroom, in person or remotely (documentation in French).

A set of simple tools to accompany the animation of courses in person or remotely. (documentation in French).

📑 Collaborative document editing using Markdown

File hosting and sharing solution primary for teams and organizations.

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

The AI Org-OS — a collaborative platform for humans and agents. Explore: https://spaces.xyne.ai

A workspace where people and multiple AI agents work together.

Groupware including email, calendar/scheduling, address books, forums, mailing lists, IM, wiki and blog engines, RSS aggregation and more.

Personal cloud where you can manage and sync your files, notes, contacts, passwords, and documents.

Create a virtual game room around a connected buzzer (documentation in French).

An online self-hosted application for creating collaborative digital notepads (Documentation in french).

Create collaborative surveys, quizzes, brainstorms, and word clouds (documentation in French).

Create multimedia collaborative walls for in-person or remote work (documentation in French).

Video conferencing, instant messaging, whiteboard, collaborative document editing and other groupware tools using API functions of the Red5 Streaming Server for Remoting and Streaming.

Software for digital collaboration in companies and organizations. From powerful groupware functionalities to clever add-ons, tine combines everything to make daily team collaboration easier.

Email, calendar, collaboration server with Web interface and lots of integrations.

Local-first collaboration SDK for React, Vue, and Svelte. Batteries-included: Rich text, undo/redo, cursors, and presence.

Webapp for collaborative online retrospectives

A document management and version control plugin that allows teams of any size to collaboratively edit files and manage their workflow.

Virtual Office gives you transparency on what Zoom.us rooms are currently occupied and who is present

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

Organize PDF papers and office documents. It provides a lot of extra features for students and research groups both in industry and academia.

VS Code collaboration extension - a peer-to-peer and open-source alternative to Live Share.

Weave.js is an open source library to build real-time collaboration applications like whiteboards, diagram editors, etc. on HTML5 Canvas with your own UI

The global climate action web platform. 🌏

Official Zulip terminal client.

Realtime infrastructure for multiplayer apps and agents

Official Extensions for DevGlobe. Show up on a 3D globe in real time while you code, with automatic time tracking and coding metrics.

Self-hosted shared workspace for communities — live collaboration on tasks, documents, calendars, dashboards and more in one place. Project management that starts simple and grows with you.

Plugin for Anki SRS designed to facilitate cooperation on creation of notes and decks.

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

Renku provides a platform and tools for reproducible and collaborative data analysis.

Open-source Frame.io alternative

HydroShare is a collaborative website for better access to data and models in the hydrologic sciences.

🚎 Notebook sharing hub

Collaborative Platform for team collaboration: file,threads,notes,agenda,etc.

Enterprise Jupyter notebook sharing and collaboration app

A private Lumina server for IDA Pro

基于频道模式的团队沟通协作+轻量级任务看板，支持mardown、富文本、在线表格和思维导图的团队博文wiki，i18n国际化翻译管理的响应式web开源团队协作系统。

AI made blood management social app (Android only)

Cross-platform real-time collaboration client optimized for business and organizations.

PartyKit simplifies developing multiplayer applications

AI Chat / Search / Notes / Collaboration / Channels / Cloud Drive, all in one place! - Collaborative AI Platform.

Incredible drastically simplifies creation of developer video content. It offers a unified workflow to storyboard, record, collaborate and produce the video.

This action helps you to sync your PRs with tasks in Teamwork to streamline team collaboration and your development workflows.

Touch Visualization in SwiftUI

📘 VS Code extension for managing and sharing code snippets, notes and interactive samples using GitHub Gists

Kanwas — Shared context board for teams and agents

Groupware server backend for the grommunio Distribution, supporting MAPI/HTTP, RPC/HTTP, EWS, IMAP, POP3 protocols, PHP-MAPI bindings, and import from PST/OST/MSG/CDFV2/TNEF, EML/ICAL/VCF, Kopano, Zarafa

Ways of Working (WOW) has 100+ tips for teamwork, including principles, values, tenets, ground rules, aspirations, norms, agreements, expectations, understandings, and more.

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.

Apply design thinking to build and ship your software securely and at scale with GitHub

Open source video conferencing system for tutors.

The Grass Computing Platform

[LEGACY] CROSS † CHANNEL 中文化 (汉化) 项目，源代码以及网站。（全翻译文本、全平台移植源码已公开！欢迎修改&学习！）CROSS † CHANNEL Chinese Localization Project, source codes and websites. (All translations and scripts are open, welcome on any improvements!)

Cervantes is an open-source, collaborative platform designed specifically for pentesters and red teams. It serves as a comprehensive management tool, streamlining the organization of projects, clients, vulnerabilities, and reports in a single, centralized location.

A website about french words for computer concepts.

Data science environments, for collaboration. ✨

Focalboard is an open source, self-hosted alternative to Trello, Notion, and Asana.

Lightweight Google-searchable Slack alternative for Communities

Shared inboxes for human + AI teams Route the work, automate it, integrate it with anything, and hand it to a person or an AI teammate who sees it through. Refined over 24 years, with a built-in harness for AI teammates -- each with its own mix of knowledge, skills, and tools.

Pentest Report Generator

任务管理是企业内部事务协同的重要工具【参考teamwork、worktile、trello等多种产品对项目的管理理念】。包含项目管理（任务看板）、个人待办(to do list)、目标管理(OKR)三大核心功能。通过项目-任务的管理方式，在公开透明的任务看板，随时掌握项目进展，多级任务分配到人，知道「谁」在「何时」「做什么」。

Secure AI conversations with documents, video, audio, and more. Personal workspaces for focused context, group spaces for shared insight. Classify docs, reuse prompts, and extend with modular features.

Elixir implementation of Delta, the JSON format for describing rich-text content and their changes

Stream and share terminals over the web. Show off mad cli-fu, help a colleague, teach, or troubleshoot. end-to-end encrypted 🛡

A repository for team interaction, syncing, and handling meeting notes across the JupyterHub ecosystem.

Open source asynchronous video communication

Meet OfficeHub — your all-in-one workspace for seamless productivity. Whether you’re drafting documents, crunching numbers in spreadsheets, or mapping out ideas with mind maps, OfficeHub brings every tool you need under one intuitive roof.

SuperViz provides powerful SDKs and APIs that enable developers to easily integrate real-time features into web applications. Our platform accelerates development across various industries with robust, scalable infrastructure and a low-code approach.

Wireflow - user flow chart real-time collaborative tool

Chat with your team while you collaborate over code using VS Live Share

A reverse engineering of Linear's sync engine.

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

🥥 Coco AI Server - Search, Connect, Collaborate, AI-powered Enterprise Search, all in one space.

This open source repository contains collection of games build on basic tech stacks in web development . Use your creativity and build your own game and contribute to the repository by making PR 🎮

ChatGPT加持的，多人在线协同信息安全报告编写平台。目前支持的报告类型：渗透测试报告，APP隐私合规报告。

Your visual bookmark manager

:sparkles: Python library and CLI to upload photo and video on Instagram. W/o a phone!

Opinionated RiotJS Style Guide for teams.

slatejs collaborative plugin & microservice https://slate-collaborative.herokuapp.com/

多人实时富文本 编辑器，可以嵌入各种应用中。支持markdown语法。

SwellRT main project. Server, JavaScript and Java clients

a scalable collaborative document editor with CRDT, P2P and E2EE

A compatible .Net implementation of the Yjs CRDT framework.

Adds collaborative editing capabilities to the Monaco Editor

A deployable web platform for collaborative conversation, ideation & sense-making. Use it for free at

Build real-time collaborative DApps on top of IPFS

Pixel Art Together is a multiplayer pixel art editor powered by Liveblocks.

Memory Hole is a support issue organizer application

Multi-tool reverse engineering collaboration solution.

Collaborative editing with multi cursors sync using Quill and ShareDB.

Scan, index, and archive all of your paper documents (acquired by Mayan EDMS)

a Restful Api test tool

Power Tools for AI Engineers With Deadlines

community-driven bootcamps.

Providing example language for contracts which work with open-source software and explicitly want to encourage it's growth and development.

Eliminate the annoying work within ticketing systems (Jira, GitHub, Trello). Allows automating (without admin access) daily actions like tickets fields verification, email notifications by JQL/GQL, meeting requests to your (or teammates) calendar.

More Matrix Than Matrix

Node.js workflow tool

Synchronize content between a CMIS repository and your desktop. Like Dropbox for Enterprise Content Management!

Co-author commits using GitHub usernames when pair programming

This is everything you need to know about having better commit messages

Vue实现高仿teambition产品，后台Laravel5.6，包含了teambiation基础版模块功能

Manuscript describing open collaborative writing with Manubot