Mattermost

A self-hostable online chat service with file sharing
Aug 14, 2026
Rating:
4.6 on 82 votes
Category:
Communication › Texting & Video calls
Developer:
Mattermost
License:
Freeware
Total downloads:
64
Latest version:
6.3

Description

Establish, manage, and control an internal chat for organizations and companies. Generate custom workflows and optimize content sharing. Safeguard a network environment against major security incidents, vendor lock-ins, and external or internal damages.

Mattermost 6.3 for Mac can be downloaded from our software library for free. The most recent installer that can be downloaded is 111.6 MB in size. This Mac download was checked by our antivirus and was rated as safe. This free Mac app is an intellectual property of Mattermost. The program is included in Communication Tools.

From the developer:

Mattermost is an open source, self-hosted Slack-alternative.

You may want to check out more software for Mac, such as electron-mattermost or matterfront, which might be similar to Mattermost.

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