Info Table
TierPaid Plan, Per-User Pricing, Tiered Pricing
Affiliate ProgramNo
White LabelNo
APIYes [view all]
SupportYes
 ar@mattermost.com
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Description

Mattermost is an open-source, self-hosted collaboration platform designed for secure team messaging and workflow automation. It offers Mattermost features like real-time chat, file sharing, DevSecOps integrations, AI bots, and compliance tools for mission-critical operations. Trusted by defense and enterprises, it ensures data sovereignty with on-premises deployment, advanced security, and high availability. Ideal for technical teams prioritizing privacy and efficiency.

Founded in2014
Location🇺🇸 United States
Founders Ian Tien

Plans

No free plan available for this product.
Professional
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◈Channel-based collaboration
◈Messaging, file sharing, and link and file previews across device platforms
◈1:1 audio calls and screen sharing
◈Threaded discussions
◈Core search up to 3 million posts
◈Custom branding, themes, and emojis
◈Hashtags
◈Channel Categorization
◈Available in 20 languages
◈Multi-window desktop
◈Compact view
◈Markdown compatibility
◈Message priority
◈Persistent notifications
◈Multi-team collaboration
◈Group calling and screen share
◈Guest accounts
◈Custom user groups
◈System-wide notifications
◈Access controls & automation
◈Multifactor authentication
◈Single sign-on
◈AD/LDAP user sync
◈Advanced access controls
◈Agentic Platform
◈Interactive AI bot support
◈Bring-your-own & multi-LLM integration
◈Agent control plane
◈Agents Token Accounting
◈Integrations platform
◈Integrations platform
◈Operational and DevOps integrations
◈Support
◈Community Support
◈Professional Support
Enterprise
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◈Everything in Professional, Plus:
◈
◈Agentic Platform
◈Sovereign AI
◈Contextual summarization and composition
◈Real-time channel briefing
◈Agent control plane
◈Universal Connector with Model Context Protocol (MCP)
◈Advanced logging
◈AI-enhanced Search and RAG
◈Enterprise LLM Management
◈Real-time Communications
◈Calls with live-text transcription & AI summaries
◈Video Integrations
◈Federated Communications
◈Microsoft Teams messaging integration
◈Shared Channels
◈Critical Infrastructure Hardening
◈FIPS 140-3 Compliant
◈STIG-hardened image for DoD information assurance standards
◈Workflow automation
◈Collaborative playbooks
◈Workflow dashboards
◈Mobile playbooks
◈Enhanced Run Reports
◈Channel Checklists
◈AI-assisted Summaries and Retrospective
◈Compliance & administration
◈Role Based granular Access Controls
◈AD/LDAP group, channel, and team sync
◈Delegated granular administration
◈Data retention policy
◈Legal hold
◈Compliance export and eDiscovery automation
◈Channel export
◈Custom end user Terms of Service
◈Scale & high availability
◈High availability cluster-based deployment
◈Horizontal scalability architecture
◈Enterprise search (3M+ posts)
◈Performance monitoring
◈Advanced logging
◈High availability, horizontally scalable calls and screen share
◈Supported Kubernetes deployment
◈Scale to 50,000 concurrent users
◈Work Management
◈Boards - Kanban-style Project Management
◈Enterprise mobility
◈Enterprise Mobility Management (AppConfig) support
◈Private mobility with ID-only push notifications
◈Support
◈Enterprise Support
◈Premier Support
◈U.S. Based Premier Support
Enterprise Advanced
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◈Everything in Enterprise, Plus:
◈
◈Security-Optimized Mobility
◈Mobile Biometrics
◈Mobile Data-at-Rest Encryption
◈Mobile Screenshot Prevention
◈Mobile Jailbreak / Root Detection
◈Secure File Viewer (Mobile)
◈Air-gapped & DDIL Environments
◈Air-gapped Deployment
◈DDIL Microsoft Teams app
◈Offline operation and smart resync
◈Ultra-High Resiliency
◈Scale to 200,000 concurrent users
◈Dedicated write-through caching
◈Enterprise mobility
◈InTune MAM for iOS and Android
◈Zero Trust Security
◈Dynamic Attribute Based Access Controls
◈Zero Trust Channel Access
◈Environmental Attribute-based controls
◈Classified and Sensitive Information Control
◈Channel Banners
◈Data Spillage Handling
◈Burn-on-Read Messages
◈Mission Partner Environments
◈Automatic channel translationsExperimental
Refund Policy

Mattermost has a no-refund policy: payments are non-cancelable and nonrefundable, except possibly for warranty breaches or IP claims.

Ratings

g2(4.3/5)
capterra(4.4/5)
trustpilot(2.9/5)

Ai Opinion

AI Rating(4.2/5)

Users praise Mattermost for its intuitive interface, strong security, self-hosting options, customization, and seamless integrations, making it a solid Slack alternative for teams focused on privacy. However, they dislike the steep learning curve, performance issues during peak times, lack of built-in video chat, mobile app shortcomings, and UI clutter like fast scrolling and poor threading.

Expert Opinion

Expert Rating(4.5/5)

I recently tested Mattermost, a self-hosted collaboration platform built for secure team messaging, and here's my genuine feedback from hands-on use. Mattermost shines with its open-source core and on-premises deployment, keeping data under your control unlike cloud-only Slack alternatives. I set it up quickly on my server, loving the real-time channels, threaded replies, and file sharing that kept my dev team synced without privacy worries. It supports desktop, mobile apps, and web access seamlessly. Key strengths include robust API integrations for DevOps tools, AI bots for automation, and compliance features for enterprises. Offline access works for basics, and the interface feels intuitive yet powerful during daily workflows. The free tier suits small teams, but scaling to paid plans unlocks advanced security. Minor gripe: mobile push notifications could be snappier.

Videos

Reviews

  • Tania Arellano3 ★

    : Mattermost is okay for team chats and works smoothly most of the time. I like the channels for organizing talks, but notifications often glitch and it's slow to load. Good for basic use, but could be better.

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