With deep integrations with mission-critical tools, integrated playbooks and native audio calling, Mattermost cuts through the noise to keep your team focused on the workflows that matter most.

Download Mattermost mobile and desktop apps and connect to an existing Mattermost server. Or deploy Mattermost on your own server.

Learn how your team can accelerate mission-critical work and collaborate securely with the Mattermost Platform.

Jan 16, 2026 · Evaluate Mattermost without deploying your own server. Get instant access to a demo environment and explore how your teams can run mission critical communications and workflows …

Mattermost powers high-stakes workflows across mission planning, real-time, real-world operations, DevSecOps, incident response, and cyber defense—enabling secure collaboration from tactical edge …

Mattermost: three productivity tools, integrated to work seamlessly together, and aligned with three distinct workflow types across the software development lifecycle.

Book a live demo or talk to a Mattermost expert to explore tailored solutions for your organization’s secure collaboration needs. Or try Mattermost yourself with a 1-hour preview for instant access to a …

Mattermost is an Intelligent Mission Environment (IME), purpose-built for mission-critical operations. It delivers a unified platform for secure, extensible, AI-powered collaboration and automation, …

If you’re using Mattermost to connect and collaborate, build repeatable, automated processes, and making Mattermost match your work preferences, this Mattermost end user product documentation is …

Download and install the Mattermost desktop app for macOS from the App Store, for Windows from the Microsoft Store, or by using a package manager (Linux). When new desktop app releases become …