Mattermost vs Rocket.Chat: Which Should You Choose in 2026?
Choosing between Mattermost and Rocket.Chat comes down to understanding what each tool does best. This comparison breaks down the key differences so you can make an informed decision based on your specific needs, not marketing claims.
By Toolradar Team · Last updated February 28, 2026 · Methodology
Short on time? Here's the quick answer
We've tested both tools. Here's who should pick what:
Mattermost
Open-source team collaboration platform
Best for you if:
- • You want the higher-rated option (8.4/10 vs 8.2/10)
- • Mattermost is an open-source messaging platform for secure team collaboration
- • It provides channels, threads, and integrations with self-hosting options
Rocket.Chat
Open-source team communication platform
Best for you if:
- • Rocket.Chat is an open-source team collaboration platform
- • It provides messaging, video calls, and integrations with self-hosting option
| At a Glance |  Mattermost |  Rocket.Chat |
|---|---|---|
Price | Free + Paid | Free + Paid |
Best For | Team Chat | Team Chat |
Rating | 84/100 | 82/100 |
| Feature | Mattermost | Rocket.Chat |
|---|---|---|
| Pricing Model | Freemium | Freemium |
| Editorial Score | 84 | 82 |
| Community Rating | No ratings yet | No ratings yet |
| Total Reviews | 0 | 0 |
| Community Upvotes | 0 | 0 |
| Categories | Team ChatScreen Sharing | Team ChatVideo Conferencing |
How Mattermost and Rocket.Chat Compare
Mattermost
Open-source team collaboration platform
Free tier available · 84/100 score
Rocket.Chat
Open-source team communication platform
Free tier available · 82/100 score
Who Should Use What?
On a budget?
Both are freemium. Compare plans on their websites.
Go with: Mattermost
Want the highest-rated option?
Mattermost: 84/100. Rocket.Chat: 82/100.
Go with: Mattermost
Value user reviews?
Neither has user reviews yet.
Go with: Mattermost
3 Questions to Help You Decide
What's your budget?
Both are freemium. Pricing won't help you decide here.
What's your use case?
Both are team chat tools. Compare their specific features to decide.
How important are ratings?
Mattermost scores higher: 84/100 vs 82/100.
Key Takeaways
Mattermost
- Higher score: 84/100 vs 82
- Free tier available
- Our pick for this comparison
Rocket.Chat
The Bottom Line
Mattermost (84/100) is our pick.
Frequently Asked Questions
Is Mattermost or Rocket.Chat better?
Mattermost scores 84/100 in our evaluation. Both are freemium.
What are Mattermost and Rocket.Chat used for?
Mattermost: Open-source team collaboration platform. Rocket.Chat: Open-source team communication platform.
What does Mattermost cost vs Rocket.Chat?
Mattermost is freemium (free tier + paid plans). Rocket.Chat is freemium (free tier + paid plans). Visit their websites for detailed pricing.