Mattermost is a free, open-source, and self-hosted online chat service written in Golang and React. It an alternative to Slack and provides a chat service with file sharing, search, and integrations. It is designed for organizations and companies and allows teams to communicate and collaborate securely from everywhere. It offers several features including, one-to-one messaging, unlimited search history, share and view image files, custom emojis, video calls, two-factor authorization, and notifications.
In this tutorial, we will show you how to install Mattermost Chat on Ubuntu 20.04.