Mattermost — Team Messaging (Open Source)

Mattermost is an open-source Team Messaging solution from Mattermost. Compare it against 2 other Team Messaging tools on FreeSoftwareX — by features, licensing and price — and request a quote or demo free in 2026.

What is Mattermost?

Mattermost is open source — its source code is publicly available and free to use, modify and self-host, usually with an active community and no licensing fees. It is categorised under Team Messaging and published by Mattermost. Buyers typically evaluate Mattermost when they need a dependable Team Messaging option and want to weigh the trade-offs between free, open-source and paid tools before committing.

• Category: Team Messaging
• Brand: Mattermost
• License: Open Source

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Frequently asked questions

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