# Mattermost

> Secure collaboration for technical teams

A self-hosted Slack alternative with channels, playbooks, calls and deep DevOps integrations, built for organizations with strict security needs.

- Source: https://github.com/mattermost/mattermost
- Homepage: https://mattermost.com
- License: NOASSERTION
- Language: TypeScript
- Stars: 39248
- Forks: 9033
- Contributors: 1103
- Last commit: 2026-10-02
- Latest release: v11.11.1 (2026-09-24)
- Purpose: Communication
- Runs on: Web, Docker / self-host, Desktop
- For: Enterprise

## Worth score: 79/100

How much DigGitHub recommends it, from activity, adoption, docs, license and security signals.

- Popularity: 23/25
- Momentum: 10/20
- Maintenance: 25/25
- Community: 15/15
- Readiness: 6/15

## Alternatives

- [Rocket.Chat](https://diggithub.com/RocketChat/Rocket.Chat.md): Communications platform with full data control
- [Mastodon](https://diggithub.com/mastodon/mastodon.md): Self-hosted social network in the fediverse
- [Nextcloud](https://diggithub.com/nextcloud/server.md): Self-hosted file sync, sharing and collaboration
- [Element](https://diggithub.com/element-hq/element-web.md): Secure messaging client for the Matrix network
- [Folo](https://diggithub.com/RSSNext/Folo.md): AI-powered RSS reader
- [Discourse](https://diggithub.com/discourse/discourse.md): Platform for community discussion
- [ntfy](https://diggithub.com/binwiederhier/ntfy.md): Push notifications to phone or desktop with a simple POST
- [Zulip](https://diggithub.com/zulip/zulip.md): Open-source team chat with topics

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Source page: https://diggithub.com/mattermost/mattermost
Updated: 2026-10-03