Collaborate securely and privately

A secure messaging workplace deployable to cloud or on–premises infrastructure under IT control that accelerates productivity and innovation at scale.

Mattermost Mattermost Mattermost
Mattermost
Gartner Cool Vendor

Mattermost is a Gartner Cool Vendor

Mattermost is cool because it gives buyers visibility into the code and enables deeper customization to match exact business models and needs.

  • Migration from legacy services is easy (even with strict compliance)

  • Hybrid deployment model gives enterprises more control over hosting options

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Secure, self-hosted messaging workplace. Available on every device.

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Achieve peak productivity

Achieve peak productivity

Mattermost's messaging workplace empowers teams to chat less while staying informed—and ultimately accomplish more.

Positively influence innovation

Positively influence innovation

Mattermost creates a workplace environment that cultivates collaboration and engagement, accelerating the pace of innovation.

Turn knowledge into capital

Turn knowledge into capital

Mattermost securely stores and makes searchable all workplace communication. Tap into company knowledge as you would a Google search.

Engineered for Demanding Requirements

Cloud

Cloud

Compatible with hybrid architectures and deployable to both public and private clouds.

Cloud

On-premises

Secure, on-premises installation in your data center with layered security options (e.g, SSL, VPN and DMZ).

Pre-built images

Pre-built images

Skip the install and configuration process with pre-built open source images supporting AWS, Azure and Google Cloud.

On all devices

On all devices

A single place for messaging, tools and files. Accessible from the web or your favorite device—iOS, Android, Windows, Linux and Mac.

Data under your control

Data under your control

Enjoy peace of mind with regards to data sovereignty and GDPR with a data center you control.

Rich auditing and reporting

Rich auditing and reporting

Fulfill both external regulations and internal policies with features like compliance reporting and exports.

EMM compatibility

EMM compatibility

Govern mobile access through supported Enterprise Mobility Management solutions.

Connect your tools

Connect your tools

Integrate with existing applications and build new workflows.

Firewall

Behind your firewall

Deploy Mattermost behind your company firewall on a private network with access from the outside via a VPN.

Encryption

Encryption in transit and at rest

Mattermost supports TLS encryption using AES-256 with 2048-bit RSA. Data at rest encryption is under the control of your IT.

Open Source

Open source

Based on open source code that undergoes regular penetration testing and security reviews.

Single sign-on

Single sign-on

Secure user accounts by connecting to your existing identity management system.

Messages

Send 100s of messages per second

Uber uses Mattermost to handle 70,000 simultaneous users sending 80 to 200 messages per second. Uber case study

Search Messages

Search millions of messages

Mattermost makes searchable all workplace communication. Tap into company knowledge as you would a Google search.

Minimize downtime

Minimize downtime

Avoid outages with a highly available setup and track your system health with our performance monitoring tools.

Verify deployment

Verify your deployment

Optimize performance with our load-test framework for peace of mind before rolling out to production.

Flexible deployment options

Flexible deployment options

Compatible with hybrid architectures and deployable to both public and private clouds.

Layered extensibility

Layered extensibility

Connect to both third-party and internal company tools with our APIs or pre-built integrations.

Comprehensive rebranding

Comprehensive rebranding

Make messaging your own with in-depth white labeling and customization options.

Advanced permission controls

Advanced permission controls

Accommodate your company culture and policies with permissions configurable to your needs.

Privacy-Conscious Organizations Trust Mattermost

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Why Open source

Why Open Source

Hundreds of contributors around the world help develop Mattermost (we're popular on GitHub). Never get locked in, retain complete control of your infrastructure and avoid surprises altogether.

StarFork

Explore the docs

Explore the docs

From deployment on your hybrid cloud to end-user and admin guides, learn how to customize Mattermost for your organization.

Over 100 in-depth guides available

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Alternative to Slack

Alternative to Slack

Mattermost is an open source Slack alternative. It's written in Golang and React and runs as a single Linux binary with MySQL or PostgreSQL. Use the features you like (file sharing, real-time group chat and webhooks—to name a few) and access the source code.

See Mattermost vs. Slack

Migrate from Hipchat

Migrate from Hipchat

Organizations are migrating from Hipchat, IRC and Rocket.Chat to Mattermost. After Slack acquired Hipchat, customers searched for open source alternatives. And Mattermost became the leading choice for on-premises Atlassian customers.

Migrate from Hipchat to Mattermost