Mastodon

Federated microblogging server.

GitHub stars
50,376
License
AGPL-3.0
Latest release
v4.7.3
1 October 2026
Last commit
12 October 2026
Runs on
Ruby

Commits per month, last 12 months

2,818 commits

Replaces

Paid products Mastodon can stand in for.

How to self-host Mastodon

Mastodon runs on Ruby. The project's own install guide is the place to start; most people put it on a small server with Docker and a reverse proxy for HTTPS.

  1. Get a server: a home server, a VPS, or a managed app host.
  2. Install it the way the project's docs describe, usually with Docker Compose.
  3. Put it behind HTTPS and set up backups before you add real data.
  4. Update it regularly. Watch the project's releases.

New to self-hosting? Start with the beginner's guide.

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Questions

Is Mastodon free?

Yes. Mastodon is open source under the AGPL-3.0 license, so you can use it without paying for a license. You pay only for the server it runs on.

Can I self-host Mastodon?

Yes. Mastodon runs on Ruby. Follow the install guide in the project's documentation, or use a host that installs it for you.

What does Mastodon replace?

People use Mastodon instead of Threads or X (Twitter).

Is Mastodon still maintained?

The last change to Mastodon's code was on 12 October 2026, with 2818 commits in the last 12 months.

Topics

Communication - Social Networks and Forums

App data from awesome-selfhosted (CC BY-SA 3.0), stars and activity from GitHub.