Mattermost

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Collaboration · Vendor site 2026-10-04

Mattermost is a secure collaboration platform for mission-critical and regulated teams, combining messaging, workflow automation, flexible deployment, and sovereign AI options. Editions target national security, critical infrastructure, DevSecOps, and out-of-band incident response use cases.

Updated 2026-10-04View sources

Official website

Category: Collaboration
Free access: Not confirmed
API access: Developer resources and API references are linked from the main navigation for integrators and self-hosted deployments.

Is Mattermost right for you?

A good fit for

Organizations needing Slack-like collaboration with self-hosting, air-gap, or compliance-heavy deployment models.

Before you choose

Prices and plan limits were not confirmed from the vendor; check their site before buying.

Mission-ready collaboration

Mattermost emphasizes operational and AI sovereignty for teams that cannot rely on standard SaaS chat and need deployment control plus automation around secure communications.

What it can do

Features & capabilities

Unknown is different from unavailable. Each fact carries its own evidence.

Capability	Value	Evidence	Checked
Platform scope	Homepage highlights secure messaging, workflow automation, flexible deployment, interoperability, and sovereign AI.	Facts sourced	2026-10-04
Segments	Solutions navigation targets national security, critical infrastructure, and DevSecOps programs.	Facts sourced	2026-10-04
Editions	Pricing page headings reference Professional, Enterprise, and Enterprise Advanced plans without public USD list prices in static HTML.	Facts sourced	2026-10-04

Understand the total cost

Mattermost pricing & plans

Pricing

Not listed

Official monthly price not confirmed

API: Developer resources and API references are linked from the main navigation for integrators and self-hosted deployments.

Explore pricing & history

Alternatives to Mattermost

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Colanode

Colanode is an open-source, local-first collaboration workspace alternative to Slack and Notion. It bundles chat, notes, files, wiki, and project tooling with CRDT-backed sync, optional Colanode Cloud hosting, and unlimited users on published cloud plans.

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Sila

Sila is an agentic WhatsApp-style messaging platform for teams and AI agents worldwide. The vendor positions it as simple instant messaging where humans and agents collaborate in the same conversations, with free entry, paid Pro and Max tiers for higher AI usage and frontier models, and an Enterprise track for SSO, compliance, and pooled usage.

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Konch

Konch provides AI transcription and translation for audio and video in 55+ languages with advertised 99% accuracy. It supports meeting transcription via KonchMate, exports, and optional human precision upgrades for regulated use cases.

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The practical questions

Frequently asked questions

What is Mattermost used for?

Does Mattermost have a free plan?

Not confirmed. This record does not confirm an ongoing free plan.

How much does Mattermost cost?

A listed monthly price has not been confirmed. See the plan cards for entitlements, billing commitments and seat minimums.

Can I use Mattermost through an API?

Developer resources and API references are linked from the main navigation for integrators and self-hosted deployments.. API access and subscription access may have different terms; consult the linked sources.

What should I check before choosing it?

Prices and plan limits were not confirmed from the vendor; check their site before buying.

Price history

No retained pricing changes yet. A current price alone does not establish a historical trend.

How this profile is supported

Identity and profile

Reviewed vendor source

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2026-10-04

Facts apply to the named version and check date. Send a sourced correction if something changed.