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Mattermost

Communication

4.3(8 ratings)

86% recommend

Mattermost is an open-source communication platform for teams, enhancing collaboration and productivity.

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About Mattermost

Best for technical teams needing secure, self-hosted team messaging.

Mattermost is an open-source messaging platform designed as a self-hosted alternative to Slack and Microsoft Teams. It offers real-time chat organized into channels, direct messaging, file sharing, and robust search capabilities, with a strong emphasis on security and data control. The platform is particularly popular among software development teams because of its deep integrations with DevOps tools and its extensible plugin architecture. Organizations in regulated industries like government, healthcare, and finance often choose Mattermost because they can host it on their own infrastructure, maintaining full control over sensitive communications.

Pros

Self-hosted option gives full data ownership and control
Open-source with active community and plugin ecosystem
Deep integrations with DevOps and developer tools
Strong security features suitable for regulated industries
Highly customizable with APIs and webhooks

Cons

Self-hosting requires dedicated IT resources and maintenance
Smaller user community compared to Slack or Teams
Mobile apps feel less polished than competitors
Advanced features locked behind paid enterprise plans

Use Cases

Best for development teams needing integrated chat with CI/CD and issue tracking

Best for government and defense organizations requiring air-gapped secure communication

Best for enterprises in regulated industries needing on-premise data control

Best for organizations migrating away from Slack seeking open-source alternatives

Key Features

7 features

Self-hosted deployment options

Real-time messaging and notifications

Threaded conversations for clarity

Customizable user interface themes

Integrations with popular tools

File sharing and collaboration

Advanced search functionality

SaasHunter Score

6.8/10

“Your team needs an open-source solution for enhanced collaboration and has technical expertise.”

Ease of Use

6.0

Features

8.0

Pricing

7.0

Support

6.0

Integrations

7.0

Best For

Enterprise 9Small Business 8Agencies 7Startups 7Freelancers 5

Integrations

JiraGitLabGitHubJenkinsKubernetesZoomMicrosoft TeamsZapier

Self Hosted Team Messaging Team Chat Messaging

Frequently Asked Questions

What is Mattermost?

Mattermost is an open-source, self-hostable messaging and collaboration platform designed for teams that need secure communication with full control over their data. It functions similarly to Slack but can be deployed on your own servers or private cloud.

How much does Mattermost cost?

Mattermost offers a free open-source edition for self-hosting with core features. Paid plans start at around $10 per user per month for the Professional plan, with an Enterprise plan available at custom pricing for advanced compliance, scalability, and support features.

What are the main features of Mattermost?

Key features include organized team channels, direct and group messaging, file sharing, advanced search, audio/video calls, and a rich plugin marketplace. It also offers DevOps integrations, custom workflows via playbooks, and granular administrative controls for security and compliance.

Who should use Mattermost?

Mattermost is ideal for software development teams, IT organizations, and enterprises in regulated industries like government, defense, healthcare, and finance that require self-hosted or private cloud communication solutions with strong security and compliance capabilities.

Is there a free plan for Mattermost?

Yes, Mattermost offers a free open-source Team Edition that you can self-host with unlimited users and core messaging features. There is also a free cloud tier with some limitations on message history and integrations.