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Open Source Team Chat & Messaging Tools using Vite

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 Vite.

Macro Chat

Team chat with email, tasks, and docs in one workspace

  • Stars

    Stars growing quickly over the last 30 days4,888

  • Last commit

    24 minutes ago

  • License

    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:

Discord

Buzz

Team chat, project management, and AI agents in one place

  • Stars

    Stars growing over the last 30 days36,341

  • Last commit

    7 hours ago

  • License

    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:

Microsoft Teams

Rocket.Chat

Self-hosted team messaging with voice, video, and AI

  • Stars

    46,306

  • Last commit

    3 hours ago

  • License

    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:

Discord

Element

Secure, decentralized messaging for teams and individuals

  • Stars

    13,609

  • Last commit

    12 hours ago

  • License

    AGPL-3.0
Open-source platform for encrypted communication, file sharing, and collaboration based on the Matrix protocol.

Open Source Alternative to:

Discord

Cinny

Secure and elegant Matrix client for seamless conversations

  • Stars

    3,943

  • Last commit

    3 days ago

  • License

    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:

Discord

Mezon

Create custom spaces to chat, game, and connect globally

  • Stars

    Stars growing over the last 30 days2,001

  • Last commit

    4 hours ago

  • License

    MIT
Build your own community space for gaming, chatting, and hanging out with friends worldwide. Customize your environment for the perfect social experience.

Open Source Alternative to:

Discord
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