Slack vs Mattermost
A detailed comparison of Slack and Mattermost to help you choose the right tool for your needs.
Mattermost
Open-source, self-hosted Slack alternative for secure team communication.
💰 Pricing Comparison
| Plan | Slack | Mattermost |
|---|---|---|
| Free Tier | ✓ 90-day message history | ✓ Free (self-hosted) |
| Lowest Paid | $8.75/user/mo | $10/user/mo |
| Enterprise | $12.50/user/mo | Custom pricing |
⚡ Feature Comparison
| Feature | Slack | Mattermost |
|---|---|---|
| Channels | ✓ | ✓ |
| Direct messages | ✓ | — |
| Huddles | ✓ | — |
| Clips | ✓ | — |
| Workflow Builder | ✓ | — |
| App integrations | ✓ | — |
| File sharing | ✓ | ✓ |
| Search | ✓ | — |
| Threads | ✓ | — |
| Canvas | ✓ | — |
| Direct messaging | — | ✓ |
| Integrations | — | ✓ |
| Playbooks | — | ✓ |
| Boards | — | ✓ |
| Self-hosting | — | ✓ |
| DevOps tools | — | ✓ |
| SSO/LDAP | — | ✓ |
| Compliance | — | ✓ |
| Open Source | ✗ | ✓ |
| Rating | ⭐ 4.4 | ⭐ 4.1 |
Pros & Cons
Slack
Pros
- ✓ Industry standard
- ✓ Massive integration ecosystem
- ✓ Great search
- ✓ Familiar to most teams
Cons
- ✗ Expensive at scale
- ✗ Can be distracting
- ✗ Limited free plan now
- ✗ Message history limits
Mattermost
Pros
- ✓ Open source
- ✓ Self-hosted
- ✓ High security
- ✓ Slack-like interface
Cons
- ✗ Requires hosting
- ✗ Fewer integrations
- ✗ Complex setup
- ✗ Smaller ecosystem
🏆 The Verdict
Choose Slack if: You need teams of all sizes. Slack excels with its industry standard and massive integration ecosystem.
Choose Mattermost if: You need security-conscious organizations. Mattermost stands out with its open source and self-hosted.
Best free option: Both Slack and Mattermost offer free tiers. Slack offers "90-day message history" while Mattermost offers "Free (self-hosted)".
❓ Frequently Asked Questions
Is Slack better than Mattermost?
It depends on your needs. Slack is better for teams of all sizes, while Mattermost is better for security-conscious organizations. Both are excellent tools rated 4.4 and 4.1 respectively.
Which is cheaper, Slack or Mattermost?
Slack starts at $8.75/user/mo while Mattermost starts at $10/user/mo. Both offer free tiers.
Can I switch from Slack to Mattermost?
Most tools offer import/export features to help you migrate. We recommend trying Mattermost's free tier before fully committing to a switch.
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