Forum vs Mattermost: Which Should You Choose in 2026?
Choosing between Forum and Mattermost 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 April 15, 2026 · Methodology
Short on time? Here's the quick answer
We've tested both tools. Here's who should pick what:
Forum
Connect, collaborate, and grow your community with a powerful forum platform.
Best for you if:
- 0
- • You need something completely free
- • You need community platforms features specifically
- • Online community platform for creating and managing discussion forums
- • Supports topic threads, user roles, moderation, and private messaging
Mattermost
Open-source team collaboration platform
Best for you if:
- 0
- • You need team chat features specifically
- • Mattermost is an open-source messaging platform for secure team collaboration
- • It provides channels, threads, and integrations with self-hosting options
| At a Glance |  Forum |  Mattermost |
|---|---|---|
Price | Free | Free + Paid |
Best For | Community Platforms | Team Chat |
Rating | — | — |
| Feature | Forum | Mattermost |
|---|---|---|
| Pricing Model | Free | Freemium |
| Community Rating | No ratings yet | No ratings yet |
| Total Reviews | 0 | 0 |
| Community Upvotes | 90 | 0 |
| Categories | Community PlatformsForum Software | Team ChatScreen Sharing |
How Forum and Mattermost Compare
Forum
Connect, collaborate, and grow your community with a powerful forum platform.
Free
Mattermost
Open-source team collaboration platform
Free tier available
Forum is a community platforms tool. Mattermost is in team chat.
Who Should Use What?
On a budget?
Forum is free. Mattermost is freemium.
Go with: Forum
Want the highest-rated option?
Neither has user reviews yet.
Go with: Forum
Value user reviews?
Neither has user reviews yet.
Go with: Forum
3 Questions to Help You Decide
What's your budget?
Forum is free. Mattermost is freemium. Go with Forum if free matters most.
What's your use case?
Forum is a community platforms tool. Mattermost is in team chat. Pick the category that matches your needs.
How important are ratings?
Neither has user reviews yet.
Key Takeaways
Forum
- 0
- More community upvotes (90)
- Completely free
- Our pick for this comparison
Mattermost
- Better fit for team chat
The Bottom Line
Forum is our pick.
Frequently Asked Questions
Is Forum or Mattermost better?
Forum is rated high in our evaluation. Forum is free and Mattermost is freemium.
What are Forum and Mattermost used for?
Forum: Connect, collaborate, and grow your community with a powerful forum platform.. Mattermost: Open-source team collaboration platform.
What does Forum cost vs Mattermost?
Forum is completely free. Mattermost is freemium (free tier + paid plans). Visit their websites for detailed pricing.