The open-source alternative
Mattermost offers an open-source, high-trust, developer-centric approach to collaboration
Open source
Mattermost is an open core platform that is supported by a vibrant open source community with 600 integrations and counting. Using an open-core platform allows your development teams to build high-performance workflows for DevOps, ChatOps, conversational development, and continuous deployment while maintaining complete code auditability and control over the service’s technical roadmap.
Modern collaboration for privacy-conscious organizations
Mattermost’s self-hosted and high-trust SaaS approach provides unmatched control, privacy, and legal compliance. Mattermost helps teams deliver high-quality software while meeting the safety, privacy, and scale requirements of IT and security teams. Mattermost’s on-premises and secure SaaS deployments provide the benefits of modern communication without sacrificing privacy.
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Self-hosted or high-trust SaaS
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Retain total control over data
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No third-party monitoring
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Full access to source code, server APIs, and libraries
Join the world’s best companies on Mattermost
Mattermost offers the control, privacy, legal compliance, and extensibility top enterprises need
Open Source
An open core platform means your team retains control over the service’s technical roadmap and your team is free to develop additional features without restriction. Supported by a vibrant open source community, Mattermost supports 600 integrations and counting.
Security
Mattermost offers modern communication behind your firewall. Run your vital communications under your existing security and IT policies. Deploy to public, private or hybrid clouds with full access to source code and total control of your single-tenant system.
Privacy
Your IP address, your usage patterns, the contents of your messages—SaaS services know more about your company than you do. In contrast, Mattermost provides the benefits of modern communication without sacrificing privacy.
Legal Compliance
Consumer data protection laws, data regulations, GDPR and even non-disclosure agreements are complex and ever-changing, with heavy penalties for breach. Self-hosting your communications simplifies compliance and reduces risk.
Extensibility
Mattermost offers enterprise-grade customization with complete access to source code, UI text files, APIs, drivers, and a wide array of open source integrations and samples. Whether it’s branding the login page or white-labeling mobile apps, the enterprise is in total control.
Scalability
Mattermost was built ground-up for enterprise with a single-tenant private cloud architecture offering high availability and horizontal scaling. Tens of thousands of users can operate out of a single team and hundreds of teams can be deployed in an enterprise.
Mattermost vs. Slack Enterprise Grid
For privacy-conscious enterprises, Mattermost is the team collaboration solution that increases efficiency and accelerates workflow while meeting custom security and sovereignty needs.
| Capability | Slack Enterprise Grid |
Mattermost Enterprise |
| Productivity Security Sovereignty | ||
Persistent messaging, file sharing, and search across web, mobile and PC:Persistent one-to-one and group messaging, threaded discussions, file sharing, multi-team support, private/public channel-based organization and unlimited search. Also support for advanced expression via rich text formatting plus emojis, custom emojis, emoji reactions, link previews and file previews. User-friendly native apps for Windows, Mac, Linux, iOS and Android. |
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Core integrations:Webhooks, custom commands, action buttons, Zapier support, plug-ins and OAuth 2.0 apps that integrate with existing systems. |
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Multi-language support:Ability to change user interface language from U.S. English to other languages. |
Seven (7) languages | Sixteen (16) languages including RTL support |
White labelling:Ability to replace vendor branding, customize user interface colors, fonts and on-screen text to match a customer’s internal brand guidelines. |
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Unlimited UI and UX customization:Ability to create user interface plugins to extend and customize functionality, and even re-write code in open source mobile, PC and web applications to meet specific security compliance or user experience needs. |
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| Productivity Security Sovereignty | ||
Core access controls:SAML and MFA-based login and granular permissions. Deployment of mobile applications under Enterprise Mobility Management (EMM) solutions including AirWatch, Blackberry Dynamics, and MobileIron via AppConfig. |
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Advanced access controls:Active Directory/LDAP login and certificate-based authentication within high-security networks. |
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Native eDiscovery compliance support:Built-in eDiscovery through daily compliance exports with Actiance XML, Global Relay EML, and CSV formats. |
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Data loss prevention (DLP):Ability to develop controls to block posting of sensitive data to channels via plugins. |
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Complete operational auditability:Full access to logs of all server records, infrastructure changes, database changes, network information, configuration changes, user activity, logins and IP addresses. Ability to run system within an organization’s intrusion detection and enhanced audit infrastructure. |
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Complete technical auditability:Complete access to all server APIs, source code and libraries enabling manual and automated security audits of all components used. |
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Private cloud deployment to Azure:Deployed on private cloud on Azure including U.S. Federal infrastructure with FedRAMP and DoD Cloud. |
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Private cloud deployment to AWS:Deployed on private cloud on AWS including U.S. Federal infrastructure with FedRAMP, C2S Cloud and AWS Secret Region. |
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SaaS with dedicated infrastructure:Available as a SaaS in a highly private, dedicated infrastructure on AWS. |
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Enterprise app store support:Ability to self-compile mobile apps and push notification proxy with organization-controlled certificates and deploy mobile applications to Enterprise App Store to meet high-security requirements. |
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ID-only mobile push notifications:Instead of sending full content of messages over public services like APNS or FCM, sends only a unique message ID, then app fetches message contents directly from server. |
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| Productivity Security Sovereignty | ||
Private network deployment:Deploys on private network, behind your organization’s firewall, giving you full control over your own data and enabling you to comply with your internal IT policies. |
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No third-party monitoring:Ability to run collaboration system without any third party having knowledge of operations, user locations, IP addresses or unique identifiers. |
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Verifiable disaster recovery and data retention policies:Complete, verifiable access to disaster recovery and data retention solutions, including the ability to confirm backup solutions do not circumvent data retention policies. |
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Transparent system updates:Full transparency to code changes, releases notes, feature request tracking and issue tracking. |
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Persistent messaging, file sharing, and search across web, mobile and PC:
Persistent one-to-one and group messaging, threaded discussions, file sharing, multi-team support, private/public channel-based organization and unlimited search. Also support for advanced expression via rich text formatting plus emojis, custom emojis, emoji reactions, link previews and file previews. User-friendly native apps for Windows, Mac, Linux, iOS and Android.
Core integrations:
Webhooks, custom commands, action buttons, Zapier support, plug-ins and OAuth 2.0 apps that integrate with existing systems.
Multi-language support:
Ability to change user interface language from U.S. English to other languages.
White labelling:
Ability to replace vendor branding, customize user interface colors, fonts and on-screen text to match a customer’s internal brand guidelines.
Unlimited UI and UX customization:
Ability to create user interface plugins to extend and customize functionality, and even re-write code in open source mobile, PC and web applications to meet specific security compliance or user experience needs.
Core access controls:
SAML and MFA-based login and granular permissions. Deployment of mobile applications under Enterprise Mobility Management (EMM) solutions including AirWatch, Blackberry Dynamics, and MobileIron via AppConfig.
Advanced access controls:
Active Directory/LDAP login and certificate-based authentication within high-security networks.
Native eDiscovery compliance support:
Built-in eDiscovery through daily compliance exports with Actiance XML, Global Relay EML, and CSV formats.
Data loss prevention (DLP):
Ability to develop controls to block posting of sensitive data to channels via plugins.
Complete operational auditability:
Full access to logs of all server records, infrastructure changes, database changes, network information, configuration changes, user activity, logins and IP addresses. Ability to run system within an organization’s intrusion detection and enhanced audit infrastructure.
Complete technical auditability:
Complete access to all server APIs, source code and libraries enabling manual and automated security audits of all components used.
Private cloud deployment to Azure:
Deployed on private cloud on Azure including U.S. Federal infrastructure with FedRAMP and DoD Cloud.
Private cloud deployment to AWS:
Deployed on private cloud on AWS including U.S. Federal infrastructure with FedRAMP, C2S Cloud and AWS Secret Region.
SaaS with dedicated infrastructure:
Available as a SaaS in a highly private, dedicated infrastructure on AWS.
Enterprise app store support:
Ability to self-compile mobile apps and push notification proxy with organization-controlled certificates and deploy mobile applications to Enterprise App Store to meet high-security requirements.
ID-only mobile push notifications:
Instead of sending full content of messages over public services like APNS or FCM, sends only a unique message ID, then app fetches message contents directly from server.
Private network deployment:
Deploys on private network, behind your organization’s firewall, giving you full control over your own data and enabling you to comply with your internal IT policies.
No third-party monitoring:
Ability to run collaboration system without any third party having knowledge of operations, user locations, IP addresses or unique identifiers.
Verifiable disaster recovery and data retention policies:
Complete, verifiable access to disaster recovery and data retention solutions, including the ability to confirm backup solutions do not circumvent data retention policies.
Transparent system updates:
Full transparency to code changes, releases notes, feature request tracking and issue tracking.