Tools › Mattermost
Mattermost
By Mattermost, Inc.
Category: communication
Pricing: open-source-free
Free plan: Available
Free-plan limits: Free, self-hosted open-source edition available (community-supported, core messaging/channels); paid Professional/Enterprise tiers add SSO, compliance, AI features and support and are priced per seat, sold as annual licenses
Best for: Self-hosted, open-source team chat for organizations (often government/regulated/dev-focused) that need to control their own data and infrastructure.
Checked when listed: against the vendor's own page
Automated re-check: 10/4/2026, 11:59:02 PM
Official resources
Links to Mattermost, Inc.'s own pages. Each one was checked before it was listed here.
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