Mattermost is an open source solution that seeks to provide an alternative to other Software as a Service (SaaS) platforms.
As an alternative to proprietary SaaS messaging, Mattermost brings all your team communication into one place, making it searchable and accessible anywhere.
Mattermost gives you the same core features as other team chat apps like Slack. There are public channels and private direct messages, with Markdown support to format your channel descriptions and the chat messages themselves.
Mattermost is available for mobile, desktop, and the web, on Windows, Linux, Mac OS X, Android, Android Tablet, iPhone, iPad and Cloudron
Proprietary applications it could replace:
Learn more and download Mattermost here!