Open Source Team Chat & Messaging Tools using npm
A curated collection of the best open source platforms for real-time team messaging, with channels, direct messages, threads, file sharing, and app integrations. using npm.
Team chat with email, tasks, and docs in one workspace
Stars
Stars growing over the last 30 days4,778Last commit
3 hours agoLicense
AGPL-3.0
Team chat app with inline threads, mention-based sharing, a unified inbox for chat and email, and an AI agent that works across your full workspace.
Open Source Alternative to:
Self-hosted team messaging with voice, video, and AI
Stars
46,299Last commit
3 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
39,389Last commit
3 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 and elegant Matrix client for seamless conversations
Stars
3,940Last commit
1 day agoLicense
AGPL-3.0
Cinny offers a simple, elegant, and secure interface for Matrix-based conversations, protected by end-to-end encryption.
Open Source Alternative to:
Serverless team chat over Tor, no phone number needed
Stars
2,659Last commit
2 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:
Secure open source messaging for professional teams
Stars
Stars growing over the last 30 days171Last commit
8 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:
Sent – Messaging Infrastructure for Developers. One API for SMS, WhatsApp, and RCS across 190+ countries.
Stellar Hosted