TL;DR - Mattermost
- Mattermost is an open-source messaging platform for secure team collaboration
- It provides channels, threads, and integrations with self-hosting options
- Free self-hosted, Cloud from $10/user/month
Pricing: Free plan available
Best for: Growing teams
4.3/5 across review platforms
Pros & Cons
Pros
- Open source Slack alternative
- Self-hostable
- Good for compliance
- No per-user cloud cost
- Customizable
Cons
- Less polished than Slack
- Smaller integration library
- Self-hosting required for best value
- Learning curve
- Community smaller
Ratings Across the Web
4.3(596 reviews)
Ratings aggregated from independent review platforms. Learn more
Key Features
Team collaborationSelf-hostedChannelsIntegrationsDevOpsOpen source
Pricing Plans
Free TrialFree
Free
- Self-hosted
- Up to 250 users
- Basic messaging
Professional
$10/user/month
- AD/LDAP sync
- SSO
- Guest accounts
Enterprise
Custom
- Custom compliance
- EMM support
- 24/7 support
About Mattermost
By Toolradar Team·
Mattermost provides team messaging you can self-host. Slack alternative for organizations that need data control—chat on your infrastructure.
Self-hosting keeps conversations private. The features match commercial alternatives. Enterprise features exist.
Organizations needing private team chat choose Mattermost for self-hosted messaging.
Reviews
No reviews yet. Be the first to review Mattermost!
Best Mattermost Alternatives
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Rocket.ChatFreemium
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ElementFreemium
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DiscordFreemium
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SpotFreemium
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Mattermost FAQ
Is Mattermost free?
Mattermost Team Edition is free and open source for unlimited users. Enterprise plans start at $10 per user per month.
What is Mattermost?
Mattermost is a self-hosted team collaboration platform. It's an open source alternative to Slack that you can run on your own servers for complete data control.
Mattermost vs Slack?
Mattermost can be self-hosted giving you data sovereignty. Slack is cloud-only but more polished. Choose Mattermost if you need on-premises deployment or strict compliance.
Source: mattermost.com