Team Chat
Rocket.Chat
An open-source, secure team communication platform that serves as a comprehensive Slack alternative for organizations requiring high data protection standards.
Zulip
An open-source team collaboration platform with unique topic-based threading that combines the best of email and chat for productive remote work.
Mattermost
An open-source, self-hosted team collaboration platform that serves as a secure alternative to Slack with integrated communication and workflow tools.
Element
Element is a secure, decentralized communication platform built on the Matrix open standard, offering sovereign messaging and collaboration as an alternative to Slack and other proprietary platforms.
Cinny
Cinny is an elegant Matrix client that provides a clean, organized interface for secure decentralized communication with end-to-end encryption.