Rocket.Chat vs Mattermost
Both in Team communication — compared item by item
Mattermost
Mattermost is an open source platform for secure collaboration across the entire software development lifecycle..
| Rocket.Chat | Mattermost | |
|---|---|---|
| Stars | ★ 46.2k | ★ 39.2k |
| Language | TypeScript | TypeScript |
| License | MIT | AGPL-3.0 |
| Last updated | 2026-09-24 | 2026-09-24 |
| Usage | 🐳 Self-hosted | 🐳 Self-hosted |
| Platforms | — | — |
| Category | Team communication | Team communication |
How to choose
- They support exactly the same usage modes; the difference is in ecosystem and implementation details.
- Both have comparable traction, so pick based on features and day-to-day experience.
- Different licenses (MIT vs AGPL-3.0) — check the terms before commercial use.