M

    Mastodon

    A decentralized, open-source social networking platform based on open web protocols like ActivityPub.

    DEGermany·Founded 2016
    Headquarters
    🇩🇪Germany
    Data Hosting
    GermanyGlobal / multi-region
    Structure
    Independent
    Compliance
    ▣GDPR◆EU HQ▦EU Data

    Mastodon key facts

    Last updated
    Legal entity
    Mastodon gGmbH
    Headquarters
    Germany (DE)
    Ownership
    Part of Mastodon gGmbH (non-profit)
    Founded
    2016
    Data hosting
    Germany, Global / multi-region
    Infrastructure
    Fastly
    Open source
    Yes
    US Cloud Act exposure
    Exposed
    Replaces
    Twitter/X, Facebook, Instagram, Reddit

    About Mastodon

    Mastodon is a decentralized social media platform that operates as a federation of independent servers. Unlike traditional social networks, it is not owned by a single corporation and does not use algorithms or ads to curate content. Users can follow others across different servers, creating a personalized experience focused on community and user agency. The platform is built on open-source software and the ActivityPub protocol, making it part of the 'fediverse'—a network of interoperable social apps. This allows for a high degree of customization and autonomy, as individual server administrators can set their own moderation policies and rules. The project is sustained through public donations and sponsorships rather than venture capital or advertising.

    Alternative to

    Hosting & Security

    Infrastructure

    Fastly

    Key Features

    Chronological timeline
    Decentralized architecture
    ActivityPub protocol interoperability
    Audio, video, and picture posts
    Accessibility descriptions for media
    Content warnings
    Polls
    Custom emojis
    Server-level moderation rules

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