Mattermost
A collaboration platform for secure messaging, playbooks, boards and AI agents that can run self-hosted, in a private cloud or air-gapped.
- Free trial
- Per-seat pricing
- AI features
- Vendor-sourced
- Verified 20 Oct 2026Sources are dated on this profile
- 4 sourcesLinked, typed and dated
- Vendor and official documentationHow this profile was compiled
- Not an endorsementStack18 has not tested this product
What is Mattermost?
Mattermost is a collaboration platform for channel-based messaging, calls, playbooks, boards and AI agents that organisations can run self-hosted, in a private cloud or in air-gapped environments. It is licensed as prepaid annual seat subscriptions on Professional, Enterprise and Enterprise Advanced plans.
- Best forRegulated or security-conscious organisations that need to control where data lives
- Team size fitMid-size teams, Large enterprises
- PricingPlans are quote-based on Mattermost's site; third-party listings report Professional from about $10 per user per month billed annually. A free limited-use edition is offered for technical evaluation.
- Main limitationPricing is quote-based, so costs cannot be calculated from the vendor's public pages.
- AlternativesSlack, Microsoft Teams
Mattermost overview: who it is for and what it does.
Mattermost positions itself as zero-trust collaboration, automation and AI for private cloud, self-hosted and air-gapped environments, aimed at national security, critical infrastructure and regulated enterprises. Its channel-based messaging covers threads, file sharing, one-to-one and group calls, guest accounts and search, and it can also run inside Microsoft Teams.
Beyond chat, the platform adds playbooks for repeatable processes such as incident response, Kanban-style boards, and an integrations platform with plugins, a REST API, webhooks, slash commands and an MCP server. Its agentic platform lets organisations connect their own or multiple large language models, set tool policies and track token usage.
Pricing is quote-based. Mattermost's pricing page lists Professional, Enterprise and Enterprise Advanced without prices, sells licences as prepaid annual subscriptions by seat, and offers a free limited-use edition for technical evaluation. Third-party listings report Professional from about $10 per user per month billed annually. Each server needs its own licence, and self-hosting means the customer runs and maintains the deployment.
Main problem it solves
Gives organisations with strict data-control, compliance or connectivity requirements a collaboration platform they can run on infrastructure they control, with workflows and AI built in.
Typical customer segment
Security-conscious and regulated organisations, engineering and operations teams, and public sector or critical-infrastructure bodies.
Target users
- IT and security teams that need data to stay in their own environment
- DevOps and incident-response teams that run playbooks from chat
- Regulated enterprises that need retention, legal hold and eDiscovery
Primary use cases
- Secure internal messaging and calls
- Incident response and DevSecOps coordination
- Compliance-driven communication with retention and export
- Self-hosted or air-gapped collaboration
- Embedding private AI agents in team channels
What makes it distinct
- Self-hosted, private cloud and air-gapped deployment options
- Bring-your-own LLM agents with tool policies and token accounting
- Playbooks and boards alongside messaging
Mattermost features explained.
Messaging and collaboration
- Channel-based messaging
- Public and private channels, threads, one-to-one and group messaging, file sharing and previews across web, PC, Mac, iOS and Android.
- Calls and screen sharing
- One-to-one audio calls with screen share are listed on every plan, and group calls support roughly 50 concurrent users per self-hosted server before scaling options are needed.
- Guest accounts and user groups
- Guests can be invited into channels, with single-channel guests free up to a 1:1 ratio with licensed seats, and custom groups can notify up to 256 users.
- Search and languages
- Core search is intended for deployments under 3 million posts, with Elasticsearch-based enterprise search above that, and the interface is available in 20 languages.
Workflows, boards and integrations
- Playbooks
- Collaborative playbooks structure repeatable processes such as incident response and release management, with workflow dashboards and run reports on the Enterprise plan.
- Boards
- Kanban-style boards for project and task tracking are listed under work management on the Enterprise plan.
- Integrations platform
- A plugin platform with a REST API, MCP server, webhooks and slash commands, plus connectors for tools such as Jira, GitHub, GitLab and Zoom.
- Microsoft Teams interoperability
- A Mattermost for Microsoft Teams app bridges users and runs Mattermost inside Teams.
AI, security and compliance
- Agentic platform
- Interactive AI bots, bring-your-own and multi-LLM integration, an MCP connector, an agent control plane, tool policy editor and token accounting are listed on the pricing page.
- Access control and identity
- Multifactor authentication, single sign-on over SAML, OpenID Connect and OAuth 2.0, AD or LDAP sync and attribute-based access controls.
- Compliance and retention
- Data retention policies, legal hold, compliance export to Actiance and Global Relay, channel export and custom terms of service are listed for Enterprise.
- Deployment and scale
- Self-hosted, private cloud and air-gapped deployment, Kubernetes support, and scale to about 50,000 concurrent users on Enterprise and 200,000 on Enterprise Advanced.
Mattermost pricing and plans.
Structure only; figures not recorded. Checked 20 Oct 2026 against Mattermost · Fitgap · Software Advice.
Pricing model
Prepaid annual subscriptions by seat on Professional, Enterprise and Enterprise Advanced plans. Prices are quote-based on the vendor's site.
Free plan
Not documented
Free trial
Yes
Mattermost plans and prices (USD)
Free evaluation edition
$0
n/a
Mattermost describes a limited-use edition of Enterprise Advanced for technical evaluation. Whether a permanent free tier exists was not confirmed.
Professional
Contact sales; third-party listings report about $10 per user per month billed annually
Prepaid annual seats
Channel-based and multi-team collaboration, access controls, agentic platform, integrations platform and professional support.
Enterprise
Quote on request
Prepaid annual seats
Adds real-time and federated communications, workflow automation, compliance and administration, scale and high availability, work management and enterprise mobility.
Enterprise Advanced
Quote on request
Prepaid annual seats
Adds air-gapped and disconnected-environment support, zero-trust controls, classified information controls and ultra-high resiliency.
Mattermost's pricing page lists Professional as Contact Sales and Enterprise as Get Pricing, so the $10 Professional figure comes only from third-party listings and should be confirmed with Mattermost. Seats are sold annually and extra activated users are bought quarterly on a true-forward basis. Each server needs its own licence, and a single-tenant Mattermost Cloud Enterprise service is available through sales.
Prices change. Confirm current plans and terms on the vendor's site before you decide.
Visit official website (external) ↗See alternativesMattermost integrations, API and platforms.
Important integrations
- Jira
- GitHub
- GitLab
- Zoom
- Microsoft Teams
- Microsoft Sentinel and Defender
- Pexip
- ServiceNow
Supported platforms
- Web
- PC
- Mac
- iOS
- Android
API
The pricing page lists a REST API, MCP server, webhooks, slash commands and a plugin platform. Developer documentation at docs.mattermost.com was not reviewed for this profile.
Data import and export
Channel export and compliance export to Actiance, Global Relay and custom formats are listed for Enterprise.
Mattermost also runs embedded inside Microsoft Teams. Individual integrations were not tested.
Balanced and sourced.
Each point cites a source. Editorial summaries are not customer reviews.
Strengths
- It can run self-hosted, in a private cloud, on sovereign cloud or fully air-gapped, so data stays under the customer's control. [2]
- Bring-your-own and multi-LLM agent support, an MCP connector and admin tool policies let teams run AI in their own environment. [1]
- Retention policies, legal hold, eDiscovery exports and delegated administration address compliance needs. [1]
- Playbooks, boards and connectors for tools such as Jira, GitHub and GitLab bring operational workflows into chat. [1]
Limitations
- Pricing is quote-based, so costs cannot be calculated from the vendor's public pages. [1]
- Self-hosting means the customer takes on infrastructure, patching, backups and maintenance. [3]
- Workflow automation, work management, compliance tools and high-scale options are Enterprise features rather than Professional. [1]
- Each server needs its own licence, including non-production servers. [1]
Best for
- Regulated or security-conscious organisations that need to control where data lives
- Engineering and operations teams that run incident response from chat
- Organisations that want private AI agents inside their collaboration tool
May be less suited to
- Small teams that want a simple hosted chat tool with public pricing
- Teams without the capacity to run and maintain a self-hosted deployment
Alternatives to Mattermost.
Mattermost compared with similar collaboration software.
Summaries come from each profile. This is a side-by-side aid, not a ranking.
| Product | Pricing model | Free plan | Knowledge base and docs | Collaboration | AI features |
|---|---|---|---|---|---|
| Mattermost | Annual seat licences; quote-based | Free evaluation edition; permanent free tier not confirmed | Searchable channel history; Boards on Enterprise | Channels, threads, calls, guests and playbooks | Bring-your-own LLM agents and MCP |
| Coda (Superhuman Docs) | Per Doc Maker; editors and viewers free | Yes | Docs, wikis and tables in one doc | Real-time docs with free editors and viewers | AI in docs; Grammarly and Go bundled from Pro (reported) |
| Confluence | Per user per month by plan, annual | Yes, up to 10 users | Structured pages and spaces | Team spaces, guests, Jira links | Rovo credits on paid plans (reported) |
| Microsoft Teams | Per user; standalone or bundled in Microsoft 365 | Yes, with 60-minute meetings | Via SharePoint, OneDrive and Loop | Chat, channels, meetings and calling | Copilot add-on and Copilot Chat |
| Miro | Per member; AI credits and add-ons extra | Yes, three editable boards | Visual boards, not a wiki | Infinite whiteboard with visitors and guests | Credit-based AI, AI workflows and Miro MCP |
| Notion | Per member per month; guests free | Yes | Docs, wiki and databases | Shared workspace, free guests | Notion AI bundled from Business (reported) |
Mattermost head-to-head.
No published comparisons yet.
Join the discussion.
No published discussions mention this product yet.
Mattermost questions and answers
What is Mattermost used for?
Mattermost is used for team messaging, calls, incident-response playbooks, boards and AI agents in organisations that want to run collaboration software on their own infrastructure, in a private cloud or in air-gapped environments.
How much does Mattermost cost?
Mattermost does not publish prices on its pricing page. Professional is Contact Sales, Enterprise is Get Pricing and Enterprise Advanced is Request Quote. Third-party listings report Professional from about $10 per user per month billed annually.
Is Mattermost free?
Mattermost offers a free limited-use edition of Enterprise Advanced for technical evaluation. The pricing page does not describe a permanent free plan, so confirm current free options with Mattermost.
Can Mattermost be self-hosted?
Yes. Mattermost runs self-hosted, in a private or sovereign cloud, or fully air-gapped. A single-tenant Mattermost Cloud Enterprise service is also available through sales.
Does Mattermost support AI and large language models?
Its pricing page lists AI bot support, bring-your-own and multi-LLM integration, an MCP connector, an agent control plane and token accounting, with deployment options for sovereign and air-gapped AI.
Does Mattermost integrate with Microsoft Teams?
Yes. Mattermost lists a Microsoft Teams app that bridges messaging between the two products and lets Mattermost run inside Teams.
What integrations does Mattermost support?
Documented integrations and ecosystem items include Jira, GitHub, GitLab, Zoom, Microsoft Teams, Microsoft Sentinel and Defender, Pexip, ServiceNow. API details: The pricing page lists a REST API, MCP server, webhooks, slash commands and a plugin platform. Developer documentation at docs.mattermost.com was not reviewed for this profile.
What are the limitations of Mattermost?
Pricing is quote-based, so costs cannot be calculated from the vendor's public pages. Self-hosting means the customer takes on infrastructure, patching, backups and maintenance. Workflow automation, work management, compliance tools and high-scale options are Enterprise features rather than Professional.
Which platforms does Mattermost run on?
Mattermost is documented as available on: Web, PC, Mac, iOS, Android.
When was the Mattermost profile last verified?
Sources for this profile were last reviewed on 20 Oct 2026. 4 sources are listed under Sources, and prices and plans can change, so confirm with the vendor.
Where this information comes from.
- Pricing Mattermost Official Accessed 20 Oct 2026
- Mattermost: Operational and AI Sovereignty Mattermost Official Accessed 20 Oct 2026
- Mattermost pricing and features Fitgap Third-party Accessed 20 Oct 2026
- Mattermost 2026: Benefits, Features and Pricing Software Advice Third-party Accessed 20 Oct 2026
Further official pages: Mattermost pricing (external) · Mattermost documentation (external)
Plans, features and deployment options were checked against Mattermost's own pricing page and homepage on 20 Oct 2026. The vendor does not publish prices, so the Professional figure comes from third-party listings and is marked partial. Product behaviour was not tested.
Stack18 has not tested this product or received anything from the vendor for this profile. Editorial summaries of vendor information are not endorsements. Confirm details with the vendor before buying.
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