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.

Mattermost
Info Table | ||
|---|---|---|
| Tier | Paid Plan, Per-User Pricing, Tiered Pricing | |
| Affiliate Program | No | |
| White Label | No | |
| API | Yes [view all] | |
| Support | Yes
| |
| Social Media Platforms | ||
Features
Plans
No free plan available for this product.
Professional
Contact Sales
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
Contact Sales
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
Contact Sales
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
Ai Opinion
Expert Opinion
Videos
Reviews
- Tania Arellano
: 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.