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Rocket.Chat vs Slack
How the two compare on license, platforms and what the community thinks.
Key differences
- Rocket.Chat is open source; Slack is freemium.
- Only Rocket.Chat is available on Self-hosted.
| Feature | Rocket.Chat | Slack |
|---|---|---|
| What it is | The communications platform you can fully control | Where work happens |
| License | Open source | Freemium |
| Web | ||
| Windows | ||
| macOS | ||
| Linux | ||
| iOS | ||
| Android | ||
| Self-hosted | ||
| Rating | No reviews yet | No reviews yet |
| Alternatives listed | 0 | 7 |
| Page views | 382 | 454 |
About Rocket.Chat
Rocket.Chat is an open-source communications platform you can fully control — self-host it, customize it, and federate with other services. Popular with organizations that have strict compliance or data-residency requirements.
About Slack
Slack is the channel-based messaging platform that organizes team communication by topic. It integrates with thousands of tools, supports huddles and clips, and replaces long email threads with searchable conversations. Free tier limits message history; paid plans unlock archives and workflow automation.