Social networking, back in your hands

The world’s largest free, open-source, decentralized microblogging network

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As seen on

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Find your perfect community

Mastodon isn’t one place and one set of rules: it’s thousands of unique, interconnected communities to choose from, filled with different people, interests, languages, and needs. Don’t like the rules? You’re free to join any community you like, or better yet: you can host your own, on your own terms!

Take control of your content

With powerful tools to control who sees your posts and a 500-character limit, Mastodon empowers you to share your ideas, unabridged. The best part? All posts are in chronological order, not “optimized” to push ads into your timeline. With apps for iOS, Android, and every other platform imaginable, Mastodon is always at your fingertips.

Putting the user first

You’re a person, not a product. Mastodon is a free, open-source development that has been crowdfunded, not financed. All instances are independently owned, operated, and moderated. There is no monopoly by a single commercial company, no ads, and no tracking. Mastodon works for you, and not the other way around.

Feel safe in your community

Mastodon comes with effective anti-abuse tools to help protect yourself from online abuse. With small, interconnected communities, it means that there are more moderators you can approach to help with a situation. This also means you can choose who sees your posts: friends, your community, or the entire fediverse.

Additional features

  • Robust anti-abuse tools
  • Flexible post filtering
  • A huge audience
  • Easily deploy your own
  • They’re called toots
  • Embed media in your posts
  • Built on open web standards
  • Spoiler warnings
  • You decide what’s relevant

Sponsored by

Tootdonpixiv Inc.Kibousoft LLC

Get started: Choose an instance

Each server is a separate, independently owned gateway into the fediverse. You can talk to your friends regardless of which one you choose, but each will have different moderation policies and interests, so choose the one that feels the most comfortable to you.

Server
Stability
Population
Theme

Tip:This isn’t just your home, it’s also the address that other people can find you by. It’ll be @username@example.com like choosing an email address.

Install your own

If you are interested in running your own instance — for your friends, family or organization — you can get started by reading the installation documentation. You only host your own users and the content that they subscribe to.

Read the docs

How it works

Anyone can run a server of Mastodon. Each server hosts individual user accounts, the content they produce, and the content they subscribe to.

Each user account has a globally unique name (e.g. @user@example.com), consisting of the local username (@user), and the domain name of the server it is on (example.com).

Users can follow each other, regardless of where they’re hosted — when a local user follows a user from a different server, the server subscribes to that user’s updates for the first time.

Fediverse

Why is that cool?

Servers are run independently by different people and organizations. They can apply wildly different moderation policies, so you can find or make one that fits your taste perfectly. A decentralized network is harder for governments to censor. If one server goes bankrupt or starts acting unethically, the network persists so you never have to worry about migrating your friends and audience to a yet another platform again.

Get started

Sponsors

Mastodon is free, open-source software. There is no advertising, monetizing, or venture capital. Your donations directly support full-time development of the project.

Support on Patreon View sponsors

Branding

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Mastodon color scheme

#282c37
#9baec8
#d9e1e8
#2b90d9