Open Source Projects tagged "Collaboration"
A curated collection of the best open source projects tagged "Collaboration". Each listing includes a website screenshot along with a detailed review of its features.
Collaborative whiteboard with a hand-drawn aesthetic
Stars
134,434Last commit
11 hours agoLicense
MIT
Virtual whiteboard for sketching diagrams, flowcharts, and wireframes with a distinctive hand-drawn look. Real-time collaboration built in.
Open Source Alternative to:
Free instant whiteboard with real-time collaboration
Stars
51,057Last commit
9 hours agoLicense
Unknown
Virtual whiteboard that works instantly on any device, no signup required, with real-time multiplayer collaboration built in.
Open Source Alternative to:
Self-hosted team messaging with voice, video, and AI
Stars
46,303Last commit
6 hours agoLicense
MIT
Open source communication platform combining messaging, voice, video, and AI for organizations that need full data control, air-gapped deployments, and zero-trust security.
Open Source Alternative to:
Secure collaboration platform for mission-critical work
Stars
39,416Last commit
7 hours agoLicense
Unknown
Mattermost provides a flexible, open-source platform for secure team collaboration, designed for organizations with strict security and privacy requirements.
Open Source Alternative to:
Secure cloud collaboration platform for organizations
Stars
37,257Last commit
6 hours agoLicense
AGPL-3.0
Nextcloud offers on-premises file sync, sharing and collaboration platform with advanced security and privacy features.
Open Source Alternative to:
Organized team chat for distributed teams
Stars
26,101Last commit
8 hours agoLicense
Apache-2.0
Zulip is an open-source team chat app that uses threaded conversations to keep communication organized and efficient for teams of all sizes.
Open Source Alternative to:
Collaborative bookmark manager for teams and individuals
Stars
20,194Last commit
5 days agoLicense
AGPL-3.0
Open-source platform to collect, organize, and preserve webpages with powerful collaboration features
Open Source Alternative to:
Design editor that opens Figma files, runs AI, and stays local
Stars
Stars growing over the last 30 days9,221Last commit
9 hours agoLicense
MIT
A Figma-compatible design editor with built-in AI chat, headless CLI, real-time P2P collaboration, and a Vue SDK for building custom editors. No account needed.
Open Source Alternative to:
Self-hosted Kanban board with real-time collaboration
Stars
12,635Last commit
9 hours agoLicense
Unknown
Self-hosted Kanban board for agile teams. Unlimited boards, real-time sync, GDPR-compliant, and available as a free Community Edition or paid Pro.
Open Source Alternative to:
Feature flags for rapid, risk-free software deployment
Stars
13,899Last commit
13 hours agoLicense
AGPL-3.0
A powerful feature management platform enabling gradual rollouts, A/B testing, and seamless integration for continuous delivery.
Open Source Alternative to:
Secure collaboration with end-to-end encryption
Stars
8,026Last commit
14 hours agoLicense
AGPL-3.0
Open-source collaboration suite offering encrypted document editing, file sharing, and team workspaces with complete privacy protection.
Open Source Alternative to:
Complete office suite for documents, spreadsheets & more
Stars
7,042Last commit
1 day agoLicense
AGPL-3.0
Open-source online editor for documents, spreadsheets, presentations, and PDFs. Features real-time collaboration, AI integration, and accessibility tools.
Open Source Alternative to:
Serverless team chat over Tor, no phone number needed
Stars
2,658Last commit
5 days agoLicense
GPL-3.0
Quiet is a peer-to-peer messaging app that syncs messages directly between devices over Tor, with no central server, no phone number required, and no metadata leaks.
Open Source Alternative to:
Open-source file storage with complete data sovereignty
Stars
Stars growing over the last 30 days1,942Last commit
12 hours agoLicense
AGPL-3.0
Secure, open-source platform for file storage, sharing, and collaboration. Host your data on your own infrastructure with full control and transparency.
Open Source Alternative to:
Collaborative content creation for technical teams
Stars
2,005Last commit
12 days agoLicense
AGPL-3.0
A powerful platform for technical writing, offering real-time collaboration, version control, and seamless integrations.
Open Source Alternative to:
Enterprise file sync, share, and collaboration platform
Stars
2,164Last commit
9 hours agoLicense
Apache-2.0
Self-hostable file platform for enterprises needing data sovereignty, real-time document collaboration, and compliance with GDPR, HIPAA, and other regulations.
Open Source Alternative to:
Simplify project management for developers
Stars
458Last commit
13 days agoLicense
Apache-2.0
Shelve is a comprehensive project management tool designed to streamline workflows and enhance collaboration for developers and teams.
Open Source Alternative to:
Secure open source messaging for professional teams
Stars
Stars growing over the last 30 days171Last commit
9 hours agoLicense
AGPL-3.0
Free Matrix-based messenger with end-to-end encryption, multi-platform bridges, and on-premise deployment. Connect across 30+ networks securely.
Open Source Alternative to:
Postiz – The All-in-One agentic social media scheduling tool
CodeRabbit
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