Sovereign Alternatives to Slack
by Salesforce (US)
Slack is one of the most widely used team communication platforms worldwide. Owned by Salesforce (USA) since 2021, data is stored primarily in the US.
Why switch?
- Data stored primarily in the US
- No self-hosting option
- Proprietary protocol without federation
- Vendor lock-in through closed ecosystem
3 sovereign alternatives
Sorted by Sovereignty Score
Wire
9.5 Sovereignty Score Communication & MessagingSecure collaboration platform with end-to-end encryption for messaging, voice, and video. Built for enterprises with on-premise deployment options.
Element (Matrix)
8.5 Sovereignty Score Communication & MessagingSecure messaging and collaboration app built on the Matrix protocol. Offers end-to-end encryption and can be self-hosted for complete data sovereignty.
Rocket.Chat
7.5 Sovereignty Score Communication & MessagingOpen source team communication platform with real-time messaging, video conferencing, and file sharing. Supports federation and can be fully self-hosted.