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We develop Mastodon

Free, open-source decentralized social media

Our story

Mastodon gGmbH is a non-profit from Germany that develops the Mastodon software. Mastodon started in 2016 as an open-source project by Eugen Rochko, who, as an avid user since 2008, was dissatisfied with the state and direction of Twitter.

Believing that instant global communications were too crucial for modern society to belong to a single commercial company, he sought to build a user-friendly microblogging product that would not belong to any central authority, but remain practical for everyday use.

The first public launch occurred in October 2016. The initial support the project received through Patreon ensured that Eugen could begin working on the project full-time post-graduation. In April 2017 it received its first big break and garnered world-wide attention and press coverage.

The project was officially incorporated as a gGmbH (a German form of non-profit LLC) in 2021.

Meet the team

Join the team

Eugen Rochko
Founder, CEO
Renaud Chaput
Felix Hlatky
Nathan Mattes
Marcus Kida
Gregory Klyushnikov
David Roetzel
Timothy Campbell
Inga Driksne
Andy Piper
Amelia Rochko
Customer Service

Mastodon, Inc.

Mastodon, Inc. (EIN 92-3333630) is a 501(c)(3) non-profit entity in the United States that supports the growth and operational capabilities of Mastodon, including being able to receive tax-deductible U.S. donations and in-kind support.

Mastodon Inc,
228 East 45th Street Suite 9E
New York, New York 10017

Meet the Board

Board Director
Board Director
Board Director
Board Director
Board Director
Eugen Rochko
Board Observer
Renaud Chaput
Board Observer

Our metrics

In the press

What others write about us.

Mastodon’s latest release makes the open source Twitter alternative easier to use
Thousands fled to Mastodon after Musk bought Twitter. Are they still ‘tooting’?
What's Happening to Twitter Could Never Happen to Mastodon
Elon Musk Drives Even Some Twitter Founders to Mastodon
Twitter rival Mastodon rejects funding to protect non-profit status
Mastodon creator Eugen Rochko talks funding and how to build the anti-Twitter
Mastodon’s 29-year-old CEO wants his Twitter alternative to ‘replace’ its rival some day, but he’s taking an anti–Elon Musk approach to growing it
Thousands Have Joined Mastodon Since Twitter Changed Hands. Its Founder Has a Vision for Democratizing Social Media
With Twitter in chaos, Mastodon is on fire
Mastodon gained 70,000 users after Musk’s Twitter takeover. I joined them
Is it time to leave Twitter for Mastodon?
Europe Starts Its Own Social Networks
30,000 New Users Signed Up for Mastodon After Elon Musk Bought Twitter
After Musk Acquires Twitter, Mastodon Sees Flood of Traffic, Server Slowdown
Twitter and Facebook Want to Shift Power to Users. Or Do They?
The New Social Network Dodging Government Surveillance—and Nazis
Tired of Nazis in Your Twitter Mentions? Try Mastodon.
Facebook Domination vs. Self-Determination
Like Twitter But Hate the Trolls? Try Mastodon
The coder who built Mastodon is 24, fiercely independent, and doesn’t care about money is an open-source Twitter competitor that’s growing like crazy

Contact us

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Mastodon gGmbH
Mühlenstraße 8a
14167 Berlin
HRB 230086 B (Amtsgericht Charlottenburg)
Eugen Rochko (Geschäftsführer)