Rocket.Chat
Rocket.Chat is an open-source communication and collaboration platform that teams can run on their servers or in the cloud. It features security-oriented features such as real-time messaging, voice calls, federation and end-to-end encryption. Docker offers flexible distribution options in Kubernetes or air-gapped environments.
RocketChat · Chat & Messaging / Slack Alternatives
Common commercial products in this category: Slack, Microsoft Teams, Discord
- Using Docker or Kubernetes, you set up secure workspace on your own servers
- With Federation support, you provide secure communication with other companies and external networks
- You configure corporate security with identity management and role-based access control
- • High number of open issues (4,303)
- • NeutralHacker News
Welcoming Rocket.Chat to Matrix
“Even if Rocket.Chat used the same E2EE scheme as Matrix, you would still have to re-encrypt, given the application-layer protocols are not the same. RC's messages are a blob of JSON which looks nothing like Matrix's JSON events. To preserve E2EE throughout you'd have to speak…”
- • NeutralHacker News
Welcoming Rocket.Chat to Matrix
“True, although this is one step away from being a multihead messenger, effectively. It's just that the protocol-specific modules are daemons using a standard API rather than in-process. For instance, I can't think of a way that one would run an Element Web<->Rocket.Chat bridge…”
Verified against README · Oct 26, 2026 · source