 by mattermost
Mattermost is an open source platform for secure collaboration across the entire software development lifecycle..
 interface screenshot from project README](/screenshots/mattermost__mattermost-server.jpg)
About 
From the project's README at github.com/mattermost/mattermost-server. Lightly cleaned for readability; for the full source see the upstream repo.
Mattermost is an open core, self-hosted collaboration platform that offers chat, workflow automation, voice calling, screen sharing, and AI integration. This repo is the primary source for core development on the Mattermost platform; it's written in Go and React, runs as a single Linux binary, and relies on PostgreSQL. A new compiled version is released under an MIT license every month on the 16th.
Deploy Mattermost on-premises, or try it for free in the cloud.
Learn more about the following use cases with Mattermost: DevSecOps Incident Resolution IT Service Desk
Other useful resources: Download and Install Mattermost - In
Health score breakdown
6-dimension composite. See methodology for formula and weights.
Adoption signals
Real-world usage data, pulled from each registry. The bigger the numbers, the more battle-tested the project.
| Signal | Value | Source |
|---|---|---|
| GitHub stars | 37k | github.com/mattermost/mattermost-server |
| GitHub forks | 8.6k | github.com/mattermost/mattermost-server |
Release & maintenance
Is this project actively maintained, or about to die? Check the recency of last commit and last release.
| Project age | 10.9 years | since Jun 2015 |
| Last commit | 2 days ago | May 5, 2026 |
| Releases shipped | 963 | last: 3 days ago |
| Security policy | SECURITY.md | declared by maintainers |
Self-hosting cost across providers
Detected requirements: 4GB RAM, 40GB disk minimum. Cheapest plan per provider that meets the requirement.
| Provider | Plan | Specs | Monthly | |
|---|---|---|---|---|
| hetzner | CAX11 | 2c · 4GB · 40GB | $4.13 USD | Deploy → |
| vultr | VC2 | 1c · 1GB · 25GB | $5 USD | Deploy → |
| linode | Nanode 1GB | 1c · 1GB · 25GB | $5.12 USD | Deploy → |
| digitalocean | Basic Regular 1GB | 1c · 1GB · 25GB | $6 USD | Deploy → |
Security advisories
CVE-2026-2454. Ready to self-host ?
Spin up a hetzner CAX11 (4GB RAM, 40GB disk) for $4.13/mo and follow the project's official install docs.
Data last refreshed May 7, 2026.
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