Open Source Team Chat & Messaging Tools using Cargo
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 Cargo.
Team chat with email, tasks, and docs in one workspace
Stars
Stars growing quickly over the last 30 days4,872Last commit
8 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:
Team chat, project management, and AI agents in one place
Stars
Stars growing over the last 30 days36,298Last commit
8 hours agoLicense
Apache-2.0
Workspace that combines team chat, project planning, and git management with AI agents that collaborate alongside your team on shared context.
Open Source Alternative to:
Open source messaging with privacy and community focus
Stars
10,648Last commit
17 hours agoLicense
AGPL-3.0
Free, open-source instant messaging and VoIP platform with full Markdown support, voice/video calls, moderation tools, and self-hosting options for communities.
Open Source Alternative to:
Group chat for friends and communities, without the baggage
Stars
3,423Last commit
13 hours agoLicense
Unknown
Self-hostable group chat with servers, channels, voice, and moderation tools. No ads, no data mining, built under EU privacy law.
Open Source Alternative to:
Postiz – The All-in-One agentic social media scheduling tool
Bright Data