OpenMacApps

Mattermost Desktop

The desktop app for Mattermost team chat, with several servers in one window, notifications and unread badges.

GetView Source
brew install --cask mattermost

Apache-2.0 · Free download · Downloads from mattermost.com

License
Apache-2.0
Open source
Category
Internet
Source
GitHub
mattermost
Verified
2026

About Mattermost Desktop

Mattermost Desktop wraps the Mattermost collaboration platform in a Mac app. A server menu switches between several Mattermost servers, channels, Boards and Playbooks get their own tabs, and the app shows desktop notifications and badges for unread channels and mentions while it keeps running in the background.

It is only a client: you need an account on an existing Mattermost server, usually one your organisation deploys and runs. Mattermost's download page sends Mac users to the free Mac App Store version and lists macOS 14 or later; DMG and ZIP builds for Intel and Apple Silicon are also published on GitHub.

Information

Source code
mattermost/desktop
License
Apache-2.0
Website
mattermost.com
Download
mattermost.com
Homebrew
mattermost
Category
Internet
Alternative to
Slack
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