Mattermost

by Mattermost

Open-source, self-hosted team chat.

4.3(200)Team Chat

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Reviewed by the Softwares.com Editorial Team · Last updated June 2026 · How we rate

Key facts

Vendor: Mattermost
Pricing: Freemium — Free – $10/user/mo
Free tier: Yes
Platforms: Web, Windows, Mac, Linux, Ios, Android, Self Hosted
Best for: Enterprise, Government, Devops Teams
Editor rating: 4.3 / 5
Founded: 2016
Headquarters: Palo Alto, CA, USA

What is Mattermost?

Mattermost is a team chat tool from Mattermost. Mattermost is a self-hostable Slack alternative for security-conscious teams.

Mattermost uses freemium pricing and offers a free tier you can start on without a credit card. Free – $10/user/mo.

It's best suited to enterprise, government, devops-teams and runs on Web, Windows, Mac, Linux, Ios, Android, Self Hosted.

Standout strengths include self-hostable, open source, data control. Worth weighing: ops overhead, fewer integrations than slack.

Mattermost pricing

Free (self-host)

Free

Get Free (self-host)

Professional

$10/user/mo

Get Professional

Pros

Self-hostable
Open source
Data control

Cons

Ops overhead
Fewer integrations than Slack

Mattermost vs alternatives

Mattermost vs Google Workspace Mattermost vs Microsoft 365 Mattermost vs Slack Mattermost vs Missive Mattermost vs Discord Mattermost vs Zulip

See all Mattermost alternatives →

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Frequently asked questions

What is Mattermost?

Mattermost is a self-hostable Slack alternative for security-conscious teams.

How much does Mattermost cost?

Mattermost is freemium-priced. It has a free tier. Paid plans start at $10/user/mo.

Does Mattermost have a free trial?

Mattermost offers a free tier rather than a time-limited trial.

What platforms does Mattermost support?

Mattermost is available on Web, Windows, Mac, Linux, Ios, Android, Self Hosted.