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Rocket.Chat logo

Alternatives to Rocket.Chat

Rocket.Chat is an open-source, fully customizable communications platform for organizations with high standards of data protection, offering team collaboration, omnichannel customer service, and a complete messaging solution. Find open source and proprietary alternatives that serve similar purposes.

License:NOASSERTION
Stars:42,772
Difficulty:Medium
Pricing:Open-Core
Hosting:Hybrid

Self-hosted alternatives to Rocket.Chat

Open source projects that can replace Rocket.Chat:

Mattermost logo

Mattermost

32,712
NOASSERTION

Mattermost is a comprehensive open-source collaboration platform designed specifically for development teams. It combines team chat, file sharing, project management tools, and extensive integration capabilities in a secure, self-hosted environment.

Key Features

  • Communication Tools:

    • Real-time messaging
    • Threaded discussions
    • Voice/video calls
    • Screen sharing
    • File sharing
    • Code snippets
    • Search functionality

  • Development Features:

    • DevOps integrations
    • Incident management
    • Custom slash commands
    • Webhook support
    • API access
    • Bot integration
    • Plugin system

  • Team Management:

    • Team channels
    • Private groups
    • Direct messaging
    • User roles
    • Custom emojis
    • Message formatting
    • Notifications

  • Security & Compliance:

    • Self-hosted option
    • Enterprise security
    • Data privacy
    • Access controls
    • Audit logging
    • Compliance tools
    • SSO support
Zulip logo

Zulip

22,974
Apache-2.0
Zulip screenshot

Zulip is an open-source team collaboration tool that uniquely combines real-time chat with email-style threading. Its topic-based organization makes it easy to have multiple conversations simultaneously while maintaining context and searchability.

Key Features

  • Unique Threading Model:

    • Topic-based message threads
    • Stream-based organization
    • Persistent conversation history
    • Easy context switching
    • Powerful search across topics
    • Conversation permalinks

  • Efficient Communication:

    • Real-time messaging
    • Markdown formatting
    • Code syntax highlighting
    • LaTeX math rendering
    • Emoji reactions
    • Message editing history

  • Comprehensive Platform:

    • Native mobile apps (iOS/Android)
    • Desktop applications
    • Web interface
    • Email gateway
    • Keyboard-centric navigation
    • Offline message queue

  • Enterprise Features:

    • LDAP/SAML authentication
    • Guest user support
    • Fine-grained permissions
    • Data import/export tools
    • 100+ integrations
    • Self-hosted or cloud options
Element logo

Element

11,819
AGPL-3.0

Element is a feature-rich Matrix client focused on secure communication and collaboration. It provides a user-friendly interface to the Matrix network while maintaining strong privacy and security features through end-to-end encryption.

Key Features

  • Communication Tools:

    • Encrypted messaging
    • Voice and video calls
    • File sharing
    • Screen sharing
    • Group chat rooms
    • Direct messaging

  • Security & Privacy:

    • End-to-end encryption
    • Cross-signing support
    • Secure key backup
    • Device verification
    • Message verification
    • Self-hosted option

  • Collaboration Features:

    • Room management
    • User profiles
    • Message history
    • Multiple device support
    • Cross-platform availability
    • Custom themes

  • Integration Support:

    • Bridges to other platforms
    • Bot integration
    • Widget support
    • Custom widgets
    • API access
    • SSO authentication
Revolt logo

Revolt

1,359
Unknown
Revolt screenshot

Revolt is an open-source chat platform built as a privacy-focused alternative to Discord. It provides a familiar interface with servers, channels, and direct messaging while ensuring users maintain control over their data through self-hosting options.

Key Features

  • Privacy-First Design:

    • No user tracking or data selling
    • Self-hostable for complete control
    • Open-source and transparent
    • GDPR compliant
    • Optional invite-only instances
    • No phone number requirement

  • Familiar Features:

    • Server and channel organization
    • Text and voice channels (voice in development)
    • Direct messages and group chats
    • File sharing and embeds
    • Custom emoji support
    • Rich markdown formatting

  • Modern Architecture:

    • Microservices-based design
    • MongoDB for data storage
    • Redis for caching and sessions
    • RabbitMQ for message queuing
    • Caddy reverse proxy
    • Docker Compose deployment

  • Customization & Extensibility:

    • Custom themes and CSS
    • Bot development support
    • Webhook integrations
    • Role-based permissions
    • Server customization options
    • Active development community

More communication projects

Discover other open source projects in the communication category:

Novu
Novu
Novu is an open-source notification infrastructure that provides a unified API for sending notifications across multiple channels including Email, SMS, Push, and Chat. It offers an embeddable notification center, workflow engine, and no-code email editor.
communicationnotifications
Stars
37,058
Relative Popularity
157
License
NOASSERTION
Apprise
Apprise
Apprise allows you to send notifications to almost all of the most popular notification services available today such as: Telegram, Discord, Slack, Amazon SNS, Gotify, etc. through a single unified interface.
communicationnotifications
Stars
13,640
Relative Popularity
56
License
BSD-2-Clause
Tinode
Tinode
Tinode is an instant messaging platform with a Go backend and clients for iOS, Android, web, and command line, designed for building chat applications with modern features.
messagingchat
Stars
12,540
Relative Popularity
55
License
GPL-3.0
Gotify
Gotify
Gotify is a simple server for sending and receiving messages in real-time via WebSocket. It provides a sleek web UI, REST API, and supports plugins for extending functionality. Perfect for self-hosted push notifications.
communicationnotifications
Stars
12,770
Relative Popularity
53
License
NOASSERTION
Centrifugo
Centrifugo
Centrifugo is an open-source scalable real-time messaging server that can instantly deliver messages to application users over WebSocket, HTTP-streaming, SSE, GRPC, and WebTransport. It provides a language-agnostic PUB/SUB server for building real-time applications.
communicationwebsockets
Stars
9,002
Relative Popularity
38
License
Apache-2.0
SimpleX Chat
SimpleX Chat
SimpleX Chat is the most private and secure messaging platform with no user identifiers, featuring double ratchet E2E encryption and a unique approach to privacy that doesn't require phone numbers or usernames.
privacyencryption
Stars
8,787
Relative Popularity
37
License
AGPL-3.0
Screego
Screego
Screego is a simple, secure tool to quickly share your screen with one or multiple people via web browser, requiring no installation or registration.
screen-sharingwebrtc
Stars
8,599
Relative Popularity
36
License
GPL-3.0
Mumble
Mumble
Mumble is an open-source, low-latency and high-quality voice chat program built on Qt and Opus. It provides secure, encrypted communication through a client-server architecture with excellent audio quality and minimal delay.
communicationvoip
Stars
6,974
Relative Popularity
31
License
NOASSERTION
Tailchat
Tailchat
Tailchat is a next-generation noIM application for your workspace, designed to be more than just another Slack/Discord clone with its plugin system and modern architecture.
chatworkspace
Stars
3,303
Relative Popularity
14
License
Apache-2.0

Showing 1-9 of 22 projects in communication

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