World Sites & Apps
Social · 2016 · Mastodon gGmbH

Mastodon

Federated social networking

Built by a German developer in 2016, Mastodon has no central server: anyone can run an instance and federate with the rest. Each community sets its own moderation rules, and signups jumped when Twitter changed hands in 2022, with Japan consistently one of its largest markets.

Within this atlas it appears in 6 markets: United States, Japan, Germany, United Kingdom, France, Netherlands.

Key facts

Developer
Mastodon gGmbH
Launched
2016
Platforms
iOS · Android · Web
Category
Social
Official website
joinmastodon.org

Where it is used

6

Frequently asked questions

5 Q&A
What is Mastodon?

Mastodon is a social app developed by Mastodon gGmbH and launched in 2016. Federated social networking. Built by a German developer in 2016, Mastodon has no central server: anyone can run an instance and federate with the rest.

Who develops Mastodon?

Mastodon gGmbH. The product launched in 2016 and runs on iOS · Android · Web.

In which countries is Mastodon popular?

Within this atlas it appears in 6 markets: United States, Japan, Germany, United Kingdom, France, Netherlands.

What is the official website of Mastodon?

The official site is https://joinmastodon.org.

What kind of app is Mastodon?

It belongs to the social category, alongside 42 other apps in this index.

Sources

Updated 2026-11-12
Cite this pageWorld Sites & Apps. “What is Mastodon? Developer, launch year and countries”. 2026. https://abcvv.com/a/mastodon.html