Mattermost

Mattermost: Pricing, Features & Review

Security-conscious organizations and DevOps teams that need a self-hosted Slack alternative with full data control, compliance features, and deep developer tool integrations

Communication ★★★★☆ 4.2/5 Free self-hosted (Cloud from $10/user/mo) Visit Official Site

What Is Mattermost?

Mattermost is a communication tool. It's positioned for security-conscious organizations and devops teams that need a self-hosted slack alternative with full data control, compliance features, and deep developer tool integrations. Pricing starts at Free self-hosted (Cloud from $10/user/mo). Based on our evaluation across pricing, features, ease of use, integrations, and support, we rate it 4.2/5.

This profile summarizes the key facts: pricing tiers, the strongest features, and the trade-offs to weigh before committing. For a hands-on opinion-led review, see the related articles section at the bottom.

Mattermost Pros and Cons

Pros

  • Self-hosted deployment keeps all messages, files, and user data on your own servers — critical for organizations bound by HIPAA, FINRA, or government data residency requirements
  • Native integrations with GitLab, Jira, Jenkins, GitHub, and PagerDuty make it a natural fit for engineering teams already using DevOps toolchains
  • Playbooks feature provides structured incident response and runbook workflows built directly into the messaging platform, replacing separate tools like PagerDuty or Opsgenie for coordination
  • Unlimited message history on the free self-hosted plan versus Slack's 90-day limit on its free tier, preserving institutional knowledge at no cost
  • Open source codebase allows custom plugins, themes, and integrations that you fully control without waiting for a vendor's feature roadmap

Cons

  • App ecosystem has roughly 300 integrations compared to Slack's 2,600+ in its App Directory, so non-developer tools like Salesforce or HubSpot may need webhook workarounds
  • Mobile apps have noticeably slower push notification delivery (2-5 second delay) and lack feature parity with desktop, especially for threaded conversations and reactions
  • Self-hosted administration requires PostgreSQL or MySQL setup, Nginx reverse proxy configuration, and ongoing maintenance that smaller teams may not have capacity for
  • No native video conferencing — you need to integrate Zoom, Jitsi, or another third-party tool for video calls, while Slack offers built-in Huddles

Mattermost Key Features

Mattermost ships with the following core capabilities. Feature availability depends on your plan tier.

  • Persistent chat with channels, threads, direct messages, and group conversations
  • Playbooks for incident management, checklists, and automated status updates
  • Custom slash commands and incoming/outgoing webhooks for workflow automation
  • Full-text search across all messages and files with Elasticsearch or Bleve indexing
  • LDAP, SAML 2.0, and Active Directory sync for enterprise identity management
  • High availability clustering with multi-node deployment for 50,000+ concurrent users
  • Compliance exports in Actiance, GlobalRelay, and CSV formats for regulated industries

Mattermost Pricing

Mattermost starts at Free self-hosted (Cloud from $10/user/mo). Pricing changes frequently, so verify the latest tiers directly on the official Mattermost pricing page before purchasing. Our linked review articles include full per-tier breakdowns at the time of writing.

Who Is Mattermost Best For?

Security-conscious organizations and DevOps teams that need a self-hosted Slack alternative with full data control, compliance features, and deep developer tool integrations. If your situation differs significantly, the related comparisons below help you weigh Mattermost against the leading alternatives in communication.

Mattermost Reviews & Comparisons on ToolScout

comparisons Mattermost vs Slack: Self-Hosted vs Cloud in 2026 roundups Best Self-Hosted Business Tools in 2026: Take Back Control comparisons Slack Alternatives in 2026: 5 Tools That Cost Less and Do More roundups Best Open Source Alternatives to Popular SaaS Tools in 2026

Sources & References

Pricing and feature information last verified January 0001. Software vendors update plans frequently — always confirm current pricing on the vendor's site before purchase. See our review methodology.