Choosing between **Mattermost** and **Rocket.Chat** for self-hosting often comes down to a trade-off: Mattermost is generally easier to maintain over the long term, while Rocket.Chat is often quicker to "fire and forget" for a small initial setup.
As of 2026, here is how the two compare in terms of effort:
### 1. **The Setup (Initial Installation)**
* **Winner: Rocket.Chat**
* **Why:** Rocket.Chat is famous for its "one-click" style deployments. If you use **Docker Compose**, you can have a fully functional server with video, voice, and mobile push notifications working in minutes. It’s designed to be a "feature-complete" package out of the box.
* **The Catch:** Rocket.Chat relies on **MongoDB**. While powerful, managing a MongoDB database can be more intimidating for beginners than a standard SQL database if something goes wrong.
### 2. **The Maintenance (Long-Term Running)**
* **Winner: Mattermost**
* **Why:** Mattermost is widely considered more "stable" by sysadmins. It uses **PostgreSQL** or **MySQL**, which are the industry standards for data storage and are very easy to back up and optimize.
* **Updates:** Mattermost updates are generally smoother. Rocket.Chat has a history of major version changes that can occasionally break custom configurations or require specific database migrations that are tricky for casual users.
### 3. **Resource Usage (The "Server Bill")**
* **Winner: Mattermost**
* **Why:** Mattermost is written in **Go**, making it incredibly lightweight. You can run a small Mattermost instance on a very cheap VPS (1GB RAM) without it breaking a sweat. Rocket.Chat (built on **Node.js**) is more resource-heavy and typically requires at least 2GB–4GB of RAM to stay snappy once you start adding users and integrations.
---
### Summary Comparison
| Factor | Mattermost | Rocket.Chat |
|---|
| **Database** | PostgreSQL / MySQL (Easier) | MongoDB (More complex) |
| **RAM Usage** | Low (Starts at ~512MB) | Moderate (Starts at ~1-2GB) |
| **Built-in Features** | Minimal (Needs plugins for video) | Massive (Video/Voice included) |
| **License** | AGPL (More "Enterprise" feel) | MIT (More "Community" feel) |
| **UX Feel** | Clean, Slack-like | Dense, Feature-rich |
### The Verdict
* **Choose Mattermost** if you want a "set it and forget it" server that won't crash and is easy to back up. It’s perfect if you just need solid text chat and basic file sharing.
* **Choose Rocket.Chat** if you want the most "Discord-like" experience immediately (including built-in video calls) and don't mind spending a bit more on a slightly beefier server.
