Mattermost
📱 CommunicationSelf-hostable Slack for teams that can't send chat logs to a third party. Feels like 2018 Slack but private.
✓ Use when
You work in defense, gov, or regulated industry
✗ Avoid when
You want the newest chat UX
Quick Overview
Mattermost is a freemium tool in the Communication category. Self-hostable Slack for teams that can't send chat logs to a third party. Feels like 2018 Slack but private.
Best used for: You work in defense, gov, or regulated industry.
Consider alternatives if: You want the newest chat UX.
Other popular tools in this category include WhatsApp, Telegram, Microsoft Teams. See our full Communication directory for all options.
We test every tool hands-on before listing it. Read our review methodology to learn how we evaluate tools.
Frequently Asked Questions
Is Mattermost free?
Mattermost offers a free tier with limited features. Paid plans unlock additional functionality.
What is Mattermost best for?
You work in defense, gov, or regulated industry
When should I avoid Mattermost?
You want the newest chat UX
What are the best Mattermost alternatives?
Popular alternatives to Mattermost in the Communication category include WhatsApp, Telegram, Microsoft Teams, Google Meet, Signal. Each has different strengths depending on your specific needs and budget.
Who should use Mattermost?
Mattermost is best suited for growth-stage companies with established teams. It fits well in the Communication category for teams that need You work in defense, gov, or regulated industry.
The Communication Landscape
There are 41 tools in the Communication category on Fewer Tools. Our top pick is WhatsApp. The right choice depends on your stage, budget, and specific needs.
Two billion people use it. End-to-end encrypted, voice, video, groups. The default messaging app outside the US.
Messaging with channels, bots, and no file size limits. Power users and crypto people live here.
Chat, video calls, and file sharing inside the Microsoft ecosystem. If your company uses Office, you use Teams.
Video calls that just work. No download needed, one-click join from Calendar. The no-fuss meeting tool.
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