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  7. Mattermost
Mattermost

Mattermost

Unclaimed

Open-source team collaboration platform

Communication

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
Score: 84/100

Pricing

Freemium

Mattermost offers a free plan with paid upgrades.

View pricing

About Mattermost

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.

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Mattermost FAQ

Mattermost Team Edition is free and open source for unlimited users. Enterprise plans start at $10 per user per month.

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 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.

Quick Info

Pricing
Freemium
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Compare Mattermost

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