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SkillsApr 10, 2026·3 min de lecture

Mattermost — Open Source Slack Alternative for Team Collaboration

Mattermost is an open-source messaging platform for secure team collaboration. Channels, threads, voice/video calls, playbooks, and integrations — self-hosted Slack alternative.

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TL;DR
Mattermost is an open-source, self-hosted messaging platform with channels, threads, voice/video calls, playbooks, and integrations as a Slack alternative.
§01

What it is

Mattermost is an open-source messaging platform for team collaboration. It provides channels, threaded discussions, voice and video calls, playbooks (incident response workflows), and integrations with developer tools. Mattermost is self-hosted, giving organizations full control over their communication data.

Mattermost targets teams and organizations that need secure, self-hosted team messaging. It serves as an alternative to Slack for companies with compliance requirements, data sovereignty needs, or preferences for self-hosted infrastructure.

§02

How it saves time or tokens

Mattermost consolidates team communication, incident response, and integrations in one platform. Playbooks automate incident response workflows with checklists, status updates, and retrospectives. Built-in integrations with GitHub, GitLab, Jira, and CI/CD tools keep developer context in one place. The self-hosted model eliminates per-user SaaS costs for large teams.

§03

How to use

  1. Deploy Mattermost with Docker: docker run -d --name mattermost -p 8065:8065 mattermost/mattermost-team-edition:latest.
  2. Open http://localhost:8065 and create your first team.
  3. Set up channels, invite team members, and configure integrations.
§04

Example

# Deploy with Docker
docker run -d --name mattermost \
  -p 8065:8065 \
  -v mattermost-data:/mattermost/data \
  -v mattermost-config:/mattermost/config \
  mattermost/mattermost-team-edition:latest

# Open http://localhost:8065
# Create team -> Create channels -> Invite members
FeatureDescription
ChannelsPublic and private channels with threading
CallsBuilt-in voice and video calls
PlaybooksIncident response workflows with checklists
IntegrationsGitHub, GitLab, Jira, Jenkins, webhooks
BoardsKanban boards for project management
§05

Related on TokRepo

§06

Common pitfalls

  • Mattermost Team Edition (free) lacks some features available in Enterprise Edition (LDAP/AD, compliance, advanced permissions). Check feature comparison before committing.
  • Self-hosting means you manage updates, backups, and security. Set up automated database backups and a maintenance schedule.
  • Migration from Slack is supported but not seamless. Some message formatting, emoji, and integration configurations require manual adjustment after migration.

Questions fréquentes

How does Mattermost compare to Slack?+

Mattermost is self-hosted and open source; Slack is a SaaS product. Mattermost gives you data control, no per-user pricing ceiling, and the ability to run on-premises. Slack has a larger app marketplace and more polished UX.

Is Mattermost free?+

Mattermost Team Edition is free and open source. Enterprise Edition adds LDAP/AD, compliance exports, advanced permissions, and other enterprise features for a per-user license fee.

Does Mattermost support voice and video calls?+

Yes. Mattermost includes built-in voice and video calling without requiring third-party integrations. Calls work in channels and direct messages.

Can I migrate from Slack to Mattermost?+

Yes. Mattermost provides a Slack import tool that migrates channels, messages, and users. Some features like Slack workflows and custom apps need to be recreated using Mattermost's integration system.

What integrations does Mattermost support?+

Mattermost integrates with GitHub, GitLab, Jira, Jenkins, CircleCI, PagerDuty, and many other tools. It also supports incoming/outgoing webhooks, slash commands, and a plugin system for custom integrations.

Sources citées (3)
En lien sur TokRepo
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