There are many alternatives to Rocket.Chat as a self-hosted solution if you are looking for a replacement. The best open source Self-Hosted alternative is Element. It's not free, so if you're looking for a free alternative, you could try Element or Matrix. If that doesn't suit you, our users have ranked more than 100 alternatives to Rocket.Chat and many of them are open source and available as a self-hosted solution so hopefully you can find a suitable replacement. Other interesting open source Self-Hosted alternatives to Rocket.Chat are Zulip, Mirotalk, Briefing and Nerimity.
Provides secure collaboration with end-to-end encryption, supporting chat, voice, and video calls. Available on all major platforms, it enables digital sovereignty with a decentralized design and interoperability through bridges to systems like Slack and Teams. Includes enterprise-grade SaaS.
Open standard protocol enabling decentralized, encrypted instant messaging, VoIP signaling, IoT device connectivity, and persistent data management across federated servers without central control or single points of failure, bridging communication platforms.
Open-source video conferencing platform with encryption by default, up to 75 participants, live group chat, HD audio, screen and document sharing, Etherpad editing, mobile and browser support, custom deployment options, privacy-first features, and community-driven development.
Threaded group conversations combine live and asynchronous messaging, separating topics for organized collaboration, supporting open-source, cloud, and self-hosted deployments, secure communication with encryption, and multi-platform access for diverse teams.
Powered by WebRTC, Real-time video call, chat room and screen sharing entirely browser based.
The preservation of privacy is the main driver for this project. Secure technologies, such as WebRTC, are used to establish a direct connection between the participants. The website that provides the web application and mediates the communication stores as little data as...
Open-source chat platform providing community-focused group messaging, video calls, profile customization with animated avatars, custom emojis, tags, post creation, discovery of communities, and full source code access on GitHub. Entirely donation-funded.
![Profile Interface [PC - 2025]](https://img.alternativeto.net/s/618x394/avif/nerimity_993222_full.png)
![Messages View [PC - 2025]](https://img.alternativeto.net/s/618x394/avif/nerimity_281418_full.png)
![Server Discovery [PC - 2025]](https://img.alternativeto.net/s/618x394/avif/nerimity_282508_full.png)
![Server Settings [PC - 2025]](https://img.alternativeto.net/s/618x394/avif/nerimity_628028_full.png)
Conduit is a simple, fast and reliable chat server powered by Matrix. Conduit is an alternative to Synapse and tries to be lightweight and easy to install, but it is still in development.
All you need in a team collaboration tool dedicated to small efficient teams. Chat, notes, drive, online collaborative edition, calendars, news, spaces, notifications...
PrivMX Fusion is safe and easy collaboration software for all kinds of teams, with virtual workspace protected by end-to-end encryption. Each team uses desktop/laptop client software and its own (zero-knowledge) PrivMX Team Server.
Awesome hosting for Matrix chat and integrations - built on the Matrix open ecosystem for secure, decentralised communication, by the creators of Matrix.
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Yes its their main competitor, except for the omnichannel feature