Mattermost vs Microsoft Teams

The ultimate side-by-side head-to-head analysis for 2026.

Short answer

Price: not directly comparable — Mattermost is free tier available, Microsoft Teams is from $6/user/mo.
How to start: Mattermost is free tier available, Microsoft Teams is from $6/user/mo.

These lines are generated from the pricing we track, not from a paid placement. We do not publish a quality score, because we do not have one we can stand behind. They cannot tell you which tool fits your workflow — the sections below are there for that. How we score tools.

Mattermost

Microsoft Teams

Choose Mattermost if:

Organisations that cannot put internal conversations on a third-party service.

Choose Microsoft Teams if:

Large Corporations and IT Managers.

Mattermost: pros & cons

Fully self-hostable, including in air-gapped environments
Familiar channel-based interface
Open source core

Ecosystem of integrations is smaller than Slack's
You carry the upgrade and backup burden
Mobile apps lag behind commercial rivals

Microsoft Teams: pros & cons

Office 365 Integration: Edit files collaboratively within the app in real-time.
Enterprise Security: A world leader in data protection and administrative controls.
Large Meeting Capacity: Host massive live events and webinars for thousands of attendees.
Included with Office: Available for free with most business Microsoft 365 licenses.

Performance Issues: The app can feel heavy and sometimes sluggish on older hardware.
Complex UI: Navigating the channel structure can be confusing for non-technical users.
Guest Access: Adding external users outside the organization can sometimes be difficult.

Our verdict on Mattermost

The right call when self-hosting is non-negotiable. Otherwise the convenience gap with hosted chat is wide.

Our verdict on Microsoft Teams

The most secure and integrated collaboration platform for teams using Microsoft 365.

Other Mattermost comparisons

Mattermost vs Slack Mattermost vs HEY Email Mattermost vs Loom Mattermost vs Zoom