Mattermost

Open source

Open source messaging platform for technical teams with self-hosted deployment and DevOps integrations.

by MattermostOfficial site ↗Source code ↗

Pricing: subscription, custom
License: dual-license
Open source: Yes

Editorial review

Mattermost has not yet been editorially reviewed. User reviews and published field data below are unaffected — we say so rather than implying an editorial verdict.

Facts & attributes

Every value carries its evidence state. “—” means unknown — never a silent default (P-02).

Identity · Taxonomy

Tags(open-source;cloud-native): team-messaging, collaboration, self-hosted, security, ai-agentsVerification pending

Platform · Deployment

Delivery model(SaaS;self-hosted;desktop;mobile;embedded;managed-cloud;appliance): self-hosted, managed-cloud, desktop, mobileVerification pending
Desktop apps(Windows;macOS;Linux): Windows, macOSVerification pending

Pricing · Licensing

Free trial(true/false): trueVerification pending
License model(proprietary;open-source;source-available;dual-license): dual-licenseVerification pending
Pricing model(free;subscription;usage;seat;asset;transaction;revenue-share;perpetual;custom): subscription, customVerified
Source repository(HTTPS URL): https://github.com/mattermost/mattermostVerified
SPDX license IDs(Apache-2.0;MIT): MIT, AGPL-3.0, Apache-2.0Verification pending

Features · Product · Fit

Core capabilities(authoring;automation;analytics): Secure messaging & collaboration, Workflow automation, Human-machine teaming with sovereign AI agents, Federation & interoperability, Administration & governance, Project managementVerification pending

Api · Integrations · Ecosystem

API available(true/false): trueVerification pending
Enterprise SSO(SAML;OIDC): SAML, AD/LDAP, SCIMVerification pending

Security · Privacy · Compliance

Security certifications(SOC 2 Type II;ISO 27001): FIPS 140-3 validated, STIG-hardened imagesVerified

Support · Docs · Services

Support channels(email;ticket;chat;phone;community): community support, professional supportVerified

Audience · Use · Case

Best for(Neutral editorial summary): Security-critical organizations needing self-hosted or air-gapped messaging with workflow automation and sovereign AIVerification pending
Company-size fit(individual;SMB;mid-market;enterprise): mid-market, enterpriseVerification pending
Primary use cases(build;monitor;automate): DevSecOps, Mission Operations, Incident Response, Compliance Automation, Out of Band Incident ResponseVerified
Skill level(beginner;intermediate;advanced;specialist): advancedVerified

Vendor · Maintainer

Vendor type(commercial;foundation;community;government;consortium;individual): commercialVerified

User reviews

Review policy

No published reviews yet.