Mattermost — Slack Alternative
Slack Alternative is the leading open source alternative to Slack. Self-hosted workplace messaging with channels, playbooks, and integrations.
Why Mattermost?
Section titled “Why Mattermost?”Slack charges $8/mo per user. This alternative is free, self-hosted, and gives you full control.
Quick Deploy
Section titled “Quick Deploy”docker run -d -p 8065:8065 mattermost/mattermost-team-edition:latestOpen http://localhost:PORT and you’re running.
Video Walkthrough
Section titled “Video Walkthrough”Coming soon — companion YouTube video for this episode.
Feature Comparison
Section titled “Feature Comparison”| Feature | Mattermost | Slack |
|---|---|---|
| Channels | Public, private, direct messages | ✅ |
| Playbooks | Incident response workflows | ✅ |
| File sharing | Drag-and-drop with previews | ✅ |
| Integrations | Webhooks, slash commands, bots | ✅ |
| Compliance | Audit logs, data retention | ✅ |
| Mobile apps | iOS and Android | ✅ |
| Self-hosted | Full data sovereignty | ✅ |
What You Can Do
Section titled “What You Can Do”Explore the docs and start building. Most tools have a hosted free tier if you don’t want to self-host.