Rocket.Chat

Free self-hosted, cloud plans from $4/user/mo

About Rocket.Chat

Rocket.Chat is a fully open-source communications platform that combines team messaging with omnichannel customer support. Self-host it for free or use their cloud offering. Features include video conferencing, file sharing, and end-to-end encryption.

Highlights

• ✓ End-to-end encryption support
• ✓ Omnichannel — combine team chat and customer support
• ✓ Built-in video conferencing
• ✓ Federation support for cross-org communication

Limitations

• ✗ UI feels less polished than Slack
• ✗ Can be resource-heavy to self-host
• ✗ Smaller third-party integration ecosystem

Replaces

Detailed Comparisons