Skip to content
AI Tool

Mattermost Review

Mattermost is an open-source, self-hostable collaboration platform designed for technical and operational teams, providing secure messaging, workflow automation, and integrations.

shipped Jul 24, 2026automatepaid
automateplatform
Mattermost — product screenshot

Why it matters

1Mattermost is deployed by governments, enterprises, and allied militaries, including the US Air Force and NASA.
2The platform holds a rating of 4.4 out of 5 on Capterra and 4.4 out of 5 on Gartner Peer Insights.
3Recent developments include the Mattermost Docs Joint Development Program (March 24, 2026) and an AI-ready workflow platform for Microsoft Azure (2025-2026).
4Mattermost powered operational collaboration for Locked Shields 2026, the world's largest live-fire cyber defense exercise.

Specs

API Available

Yes, public API

overview

What is Mattermost?

Mattermost is an AI-powered collaboration platform developed by Mattermost that enables technical and operational teams to manage secure messaging, workflow automation, and task management. It emphasizes data sovereignty, security, and extensibility, making it suitable for organizations requiring strict control over their communications and infrastructure, functioning as an "Intelligent Mission Environment" (IME).

features

Key Features of Mattermost

Mattermost provides a comprehensive suite of features designed for secure and efficient team collaboration, with a strong emphasis on data control and extensibility. The platform supports various deployment options, including on-premises and air-gapped environments, to meet stringent security and compliance requirements.

  • Secure messaging with channel-based communication
  • Workflow automation and customizable playbooks
  • Integrations with developer tools such as GitHub and GitLab
  • On-premises, Cloud, Air-gapped, and Private Cloud deployment options
  • Mobile access for iOS and Android platforms
  • AI-accelerated workflows and agentic AI capabilities
  • Native audio calling functionality
  • High-availability deployments for mission-critical operations
  • Full data control and data sovereignty features
  • Interoperability with platforms like MS Teams, Atlassian, and GitLab

use cases

Who Should Use Mattermost?

Mattermost is primarily designed for technical and operational teams within organizations that require high levels of security, data sovereignty, and customization for their communication and workflow needs. Its architecture supports critical operations across various sectors.

  • Cyber Defense Teams: For secure, out-of-band communications and automation in Security Operation Centers (SOC) and Computer Emergency Response Teams (CERT) workflows.
  • DevSecOps Teams: Supporting sovereign Continuous Integration/Continuous Delivery (CI/CD), IT service management (ITSM), and digital system management, especially in environments with strict security and compliance requirements.
  • Mission Operations: Enabling collaboration across command, control, manufacturing, energy, and joint operations for national security, defense, intelligence, and critical infrastructure sectors.
  • Incident Resolution Teams: Helping teams resolve incidents quickly with customizable playbooks, notifications, and post-mortem tools.
  • Global Logistics Coordination: For real-time coordination across supply chains and field units using channel-based messaging and playbook-driven workflows.

how to use

How to Use Mattermost

To begin using Mattermost, organizations typically deploy the platform on their preferred infrastructure, which can range from on-premises servers to private cloud environments. Initial setup involves configuring the server, user accounts, and integrating necessary developer tools.

  • 1Deploy the Mattermost server on-premises, in a private cloud, or an air-gapped environment.
  • 2Configure user accounts and team structures to align with organizational hierarchies.
  • 3Create channels for specific projects, teams, or incident response scenarios.
  • 4Integrate with developer tools like GitHub or GitLab for automated notifications and workflows.
  • 5Utilize playbooks for standardized incident resolution and operational procedures.
  • 6Access Mattermost via web browser, desktop application, or mobile apps for iOS and Android.

pricing

Mattermost Pricing & Plans

Mattermost operates on a paid business model, offering various editions tailored to different organizational needs, from small teams to large enterprises requiring advanced security and compliance features. Specific pricing details for each tier are available upon request from Mattermost sales.

  • Mattermost offers paid plans, with specific pricing details available directly from the vendor.

Pros

  • +Offers full data control and data sovereignty through on-premises and air-gapped deployment options.
  • +Provides robust security features suitable for government, defense, and critical infrastructure sectors.
  • +Integrates extensively with developer tools like GitHub and GitLab, enhancing DevSecOps workflows.
  • +Supports customizable playbooks for standardized incident resolution and operational procedures.
  • +Features AI-accelerated workflows and agentic AI for enhanced collaboration and automation.
  • +Maintains high availability deployments for mission-critical operations.

Cons

  • Some users report performance issues, including laggy mobile use and unreliable notifications.
  • Search functionality has been noted as subpar by some users.
  • Lacks a built-in video conferencing capability, often requiring external tools.
  • Updates can occasionally be problematic, with user settings sometimes being lost.
  • Requires self-hosting, which may entail more setup and maintenance effort compared to SaaS alternatives.

Policies

Pricing Page

View Pricing

Similar Tools

Mattermost vs Competitors

Mattermost positions itself as an open-source, self-hostable alternative to proprietary SaaS messaging platforms, emphasizing data sovereignty, security, and extensibility for technical and operational teams. Its competitive landscape includes other collaboration tools with varying focuses on decentralization, threading, and ecosystem integration.

1

It offers a comprehensive communication platform with real-time chat, video conferencing, and file sharing, emphasizing customization and integration.

Rocket.Chat provides a very similar feature set and self-hosting capability to Mattermost, but its community edition might require more manual setup and maintenance compared to Mattermost's more streamlined open-source offering for technical teams.

2
Zulip

Zulip uniquely structures conversations into topics within streams, making it easier to follow multiple discussions without losing context.

While both offer self-hosting and robust integrations, Zulip's topic-based threading provides a different organizational paradigm than Mattermost's channel-centric approach, which might require teams to adapt their communication style.

3
Element (Matrix)

Element is a client for the decentralized Matrix network, offering end-to-end encrypted messaging and calls with strong privacy features.

Element, built on the Matrix protocol, offers a decentralized and highly secure communication model, which provides greater data sovereignty than Mattermost but might involve a steeper learning curve for server setup and management.

4

Integrated within the Nextcloud ecosystem, it provides secure audio/video calls and chat alongside file storage, calendar, and other productivity tools.

Nextcloud Talk is ideal for teams already using or planning to use Nextcloud for file management and other services, offering a more integrated suite than Mattermost, but its core chat features might be less specialized for developer workflows.