Open Source Self-Hosted Team Collaboration Tools

On-premises file sync, universal access, integrated collaboration, real-time communication with privacy and data control focus.

Open-source suite for editing documents, spreadsheets, presentations, forms, and PDF files with co-editing modes, plugin support, AI assistant, and integration across 40+ platforms.

AppFlowy is an open source alternative to Notion. You are in charge of your data and customizations.

CryptPad is a private-by-design alternative to popular office tools and cloud services. All the content stored on CryptPad is encrypted before being sent, which means nobody can access your data unless you give them the keys.

Docmost is an open-source collaborative wiki and documentation software. It is an open-source alternative to Confluence and Notion.

Open source kanban platform with workspace members, board visibility controls, Trello import, card labelling, activity logs, and collaboration tools.

Wekan, formerly LibreBoard, is an open-source and collaborative Trello -like kanban board application.

Mattermost is a secure, open source platform for communication, collaboration, and workflow orchestration across tools and teams.

Zulip is the only modern team chat app that is designed for both live and asynchronous conversations. Zulip topics create a separate space for each discussion, so different conversations will never get in each other's way.

Redmine is a flexible project management web application. Written using Ruby on Rails framework, it is cross-platform and cross-database.

Seafile is an open-source file management and collaboration platform that goes beyond sync and share, offering extensible metadata, multi-level tagging, flexible file views, and AI-powered organization for smarter teamwork.

Collaborative platform for real-time note-taking, documentation, and wikis, with offline support, granular permissions, AI tools, and multiple export formats.

Weblate is a web based translation tool with tight VCS integration. It features simple and clean user interface, propagation of translations across components, consistency checks and automatic linking to source files.

Rocket.Chat is a Web Chat Server, developed in JavaScript, using the Meteor fullstack framework.

Open source software offering project timelines, issue tracking, and document management with robust security and flexible management options.

Open source project platform with kanban boards, timeline tracking, real-time team collaboration, automation, MIT licensing, and data encryption.

XWiki is the ultimate open-source structured wiki designed to enhance business collaboration and efficiency. Tailored for tech-savvy professionals, XWiki’s extensibility, customization, and flexibility make it indispensable for managing large projects and datasets, while...

Etherpad is a highly customizable Open Source online editor providing collaborative editing in really real-time.

Sync-in is a secure, open-source platform for file storage, synchronization, and team collaboration — designed to give organizations full control over their data and workflows, while remaining flexible enough for individual needs.

Open source tool for managing issues, tasks, and roadmaps with custom workflows, flexible Kanban, list, calendar views, analytics, imports, secure data, and integrations.

Kanboard is a free and open source Kanban project management software.

Create your own spaces, on your own terms. The open source virtual canvas platform for chatting, collaborating, and playing.

Passbolt is an open source password manager for teams. It allows to securely share and store credentials. For instance, the wifi password of your office, or the administrator password of a router, or your organisation social media account password, all of them can be secured...

An open-source alternative to Google Drive, offering secure, self-hosted cloud storage with full control over your data, enhanced privacy, and enterprise-grade collaboration features.

Nextcloud is the most deployed on-premises file share and collaboration platform. Access & collaborate across your devices. As fully on-premises solution, Nextcloud Hub provides the benefits of online collaboration without the compliance and security risks.