Open Source Collaborative Workspaces Software

Collaborative Workspaces software centralizes team communication, knowledge management, and project coordination into shared digital environments. These tools integrate real-time chat, shared calendars, and collaborative document editing to prevent information from being scattered across different apps. This type of software serves teams and organizations that need to manage internal wikis, task lists, and contact directories. Self-hosting these apps ensures that sensitive company notes and private team discussions remain on internal servers rather than on external corporate platforms.

This page lists 43 open source tools in the Collaborative Workspaces category. The most popular are Excalidraw, AppFlowy and Affine. Most use the AGPL-3.0 or Apache-2.0 license, and 40 offer an official Docker image.

Excalidraw

Whiteboarding

A virtual whiteboard for sketching diagrams, flowcharts, and wireframes with a hand-drawn style and real-time collaboration.

128k StarsWeb App / Server

AppFlowy

Collaborative Workspaces

A collaborative workspace for notes and databases that provides data ownership and native cross platform support.

74k StarsWeb App / Server

Affine

Collaborative Workspaces

A local-first knowledge base that merges structured documents, infinite whiteboards, and databases into one workspace.

71k StarsDesktop App

Rocket.Chat

Team Chat & Messaging

A secure communication platform providing real-time messaging, voice, and video for organizations requiring full data control.

46k StarsWeb App / Server

Logseq

Personal Knowledge Management (PKM)

A privacy-first knowledge management platform using bidirectional linking and outlines to organize notes and tasks.

44k StarsWeb App / Server

Mattermost

Team Chat & Messaging

A self-hosted collaboration platform providing team chat, workflow automation, voice calling, and screen sharing for secure organizations.

39k StarsWeb App / Server

Nextcloud

Cloud File Sync & Share

A self-hosted content collaboration platform for syncing files, contacts, and calendars across multiple devices and users.

36k StarsWeb App / Server

Huly

Project Management Suites

Integrates project management, team chat, CRM, and collaborative documents into a single self-hosted business application framework.

27k StarsWeb App / Server

Neko

Remote Desktop

A self hosted virtual browser that runs in docker and uses WebRTC for real time streaming.

22k StarsWeb App / Server

Linkwarden

Bookmark Managers

A collaborative bookmark manager that preserves webpages via screenshots and PDFs to prevent data loss from link rot.

19k StarsWeb App / Server

Etherpad

Collaborative Notes & Wikis

A real-time collaborative document editor featuring character-by-character version history and author attribution for self-hosted environments.

18k StarsWeb App / Server

Overleaf

Technical Writing Platforms

A real-time collaborative LaTeX editor for creating scientific documents and academic papers in a web browser.

18k StarsWeb App / Server

AITable

Low-Code/No-Code

A visual database platform for building spreadsheets and internal tools with automated APIs and real-time collaboration.

15k StarsWeb App / Server

Stalwart Mail Server

Email Platforms

A mail and collaboration server supporting IMAP, JMAP, SMTP, CalDAV, CardDAV, and WebDAV protocols.

14k StarsWeb App / Server

Element

Team Chat & Messaging

A communication client for encrypted messaging and collaboration built on the decentralized Matrix protocol.

13k StarsWeb App / Server

Planka

Agile Project Management

A self-hosted kanban board for agile teams to manage tasks through real-time collaborative project boards.

12k StarsWeb App / Server

Grist

Spreadsheets

A relational spreadsheet that combines database structure with spreadsheet flexibility for organized data management and analysis.

11k StarsWeb App / Server

ownCloud

Cloud File Sync & Share

Self-hosted server for file storage, synchronization, and sharing with support for WebDAV, CalDAV, and CardDAV.

8.8k StarsWeb App / Server

CryptPad

Collaborative Workspaces

A collaborative suite providing end-to-end encrypted document editing and file sharing for privacy focused team workflows.

7.8k StarsWeb App / Server

OpenPencil

UI/UX Design

A design editor for opening Figma files with AI assistance, real-time P2P collaboration, and a programmable CLI.

7.4k StarsDesktop App

ONLYOFFICE Docs

Collaborative Workspaces

Provides collaborative online editing for text documents, spreadsheets, presentations, and PDFs with Office Open XML compatibility.

6.7k StarsWeb App / Server

HumHub

Collaborative Workspaces

A modular social networking platform for creating intranets, knowledge databases, and internal communication hubs for organizations.

6.7k StarsWeb App / Server

Livebook

Development Environments

Interactive and collaborative code notebooks for automating data workflows and documenting Elixir projects with rich visualizations.

5.8k StarsWeb App / Server

Workadventure

Collaborative Workspaces

Create customizable virtual worlds for remote teams to interact via avatars and proximity based video chat systems.

5.7k StarsWeb App / Server

Colanode

Collaborative Workspaces

A local-first collaboration workspace combining real-time chat, rich text pages, databases, and file management for teams.

5k StarsDesktop App

Radicale

Collaborative Workspaces

A lightweight server for syncing calendars, to-do lists, and contact lists using CalDAV and CardDAV protocols.

4.8k StarsWeb App / Server

Baïkal

Collaborative Workspaces

A lightweight CalDAV and CardDAV server for hosting personal calendars and contact address books.

3.2k StarsWeb App / Server

Openfire

Team Chat & Messaging

A real time collaboration server using the XMPP open protocol for instant messaging and communication.

3k StarsWeb App / Server

OpenStreetMap

Collaborative Workspaces

A Ruby on Rails application providing the web interface and API for a collaborative world map.

2.8k StarsWeb App / Server

WBO

Whiteboarding

A collaborative whiteboard for simultaneous drawing and real time state persistence on a large virtual board.

2.6k StarsWeb App / Server
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