Run Mattermost, the self-hosted team collaboration platform built for developers and security-conscious teams, from a pre-configured AMI in your own AWS account. Your messages and files stay on your infrastructure.
Mattermost is an open-source team collaboration platform and a self-hosted alternative to Slack. Its Team Edition is MIT licensed, and it focuses on internal team communication with deep integrations for developer workflows.
Public and private channels, direct messages and threads.
CI/CD, Git and APIs built into how teams work.
Extend and restyle your workspace with full admin access.
Stay connected from phones as well as desktops.
Start Jitsi meetings from any channel with the Jitsi plugin.
Your messages live in your own database.
The AMI ships Mattermost ready for its first admin account, with SSL handled at launch.
Subscribe on AWS Marketplace and launch the CloudFormation stack with your domain. Allow 5-10 minutes.
Create a DNS record with the PublicIp from the stack outputs. Real-time messaging needs the domain, not the IP.
Open the DashboardUrl and create the administrator account with a strong password.
Create your team and channels, then invite members from the admin panel.
An AMI on AWS Marketplace, launched into your own AWS account with a CloudFormation stack.
Launch on AWS | Mattermost | Slack | |
|---|---|---|
| Self-hostable | Yes, the default model | No, SaaS only |
| Free tier | Team Edition, no SSO | Free plan with a 90-day message history cap |
| Licence | MIT (Team Edition) | Proprietary |
| Data export | Full, it is your own database | Depends on plan |
Moving from Slack is possible with Mattermost's mmetl tool, but plan it as a migration project. Read Mattermost vs Slack →
An open-source team collaboration platform and a self-hosted alternative to Slack, with an MIT-licensed Team Edition.
No. Slack is SaaS only. If chat data has to stay on your infrastructure, Mattermost is a common choice.
Open the DashboardUrl from the stack outputs and fill in the account form. That account manages the whole workspace.
That is a WebSocket problem. Point DNS at the server and use the domain name instead of the IP address.
Yes. You have full admin access to add themes, plugins and integrations.
Yes, with the Mattermost Jitsi plugin, installed manually from its GitHub releases and pointed at your own Jitsi server.
t3.small is the recommended starting point. Resize as your team grows.
Back up your server data, remove the old stack and launch the new version from AWS Marketplace.
Cost, setup, permissions, scale and lock-in.
Install and configure the Jitsi plugin, and avoid the participant limit.
Secure, scalable self-hosted collaboration.
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