ActivityPub

A list of implementations of the ActivityPub protocol.

If you know of an implementation that is missing or if you would like to see an edit to this list please reach out to me via Mastodon/AP: https://jonleibowitz.social/@jon

*** UPDATE 2023 *** This list is woefully out of date and needs major revision. Please bear with me as I look it over and thoughtfully curate the latest state of AP implementations. Or make your own up to date list - that'd be cool too.

jonleibowitz
jonleibowitzList by jonleibowitz, last updated 
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  1. WordPress icon
     Like

    WordPress.com supports ActivityPub with an official plugin

    Cost / License

    • Freemium
    • Open Source

    Platforms

    • Mac
    • Windows
    • Linux
    • Online
    • Android
    • iPhone
    • Android Tablet
    • iPad
    • Self-Hosted
    • PHP
    • Cloudron
    WordPress screenshot 1
    WordPress screenshot 1
    WordPress screenshot 2
    +1
    WordPress screenshot 3
  2. Bridgy icon
     Like

    Bridgy pulls comments, likes, and reshares on social networks back to your web site. You can also use it to post to social networks - or comment, like, reshare, or even RSVP - from your own web site.

    https://brid.gy/

    Cost / License

    • Free
    • Proprietary

    Application type

    Platforms

    • Online
    Bridgy screenshot 1
  3. dokieli icon
     Like

    dokieli is a decentralized article authoring, annotation, and social notification tool which works from a Web browser. While it is a general purpose tooling to write articles, it is fully compliant with the Linked Research initiative and principles, and provides features and...

    Cost / License

    • Free
    • Open Source

    Platforms

    • Mac
    • Windows
    • Linux
    • JavaScript
  4. ForgeFed icon
     Like

    ForgeFed (formerly GitPub) is a decentralized federation protocol based on the W3C's ActivityPub, which extends ActivityStream 2.0. It provides a server to server API for pull request, forking and subscription of repositories provided by Git web services (services like...

    Cost / License

    • Free
    • Open Source

    Platforms

    • Self-Hosted
    • Git
  5. Funkwhale icon
     Like

    Decentralized, open source music streaming; self-hosted, browse by artist, genre; Android, iOS app compatibility. Enjoy unlimited streaming.

    Cost / License

    • Free
    • Open Source

    Platforms

    • Mac
    • Windows
    • Linux
    • Online
    • Android
    • iPhone
    • Self-Hosted
    • F-Droid
    • Kodi
    Album view
    Artist View
    You can create "radios" to stream content based on your tastes
    +2
    Home Page
  6. Hubzilla icon
     Like

    Hubzilla is a powerful platform for creating interconnected based websites featuring a decentralised identity, communications, and permissions framework built using common webserver technology. Hubzilla is very suitable for communities (of any size).

    Cost / License

    • Free
    • Open Source

    Platforms

    • Online
    • Self-Hosted
    Channel
    Photos album
    Post
    +15
    Text formatting
  7. Jejune icon
     Like

    no-nonsense activitypub implementation

    ActivityPub server designed to use constructions which provide functional security and resilience.

    Cost / License

    • Free
    • Open Source

    Platforms

    • Self-Hosted
  8. A social network for learners to share reviews on learning resources like books, courses, apps, podcasts, newsletters, livestreams etc. Open-source and ActivityPub compliant.

    Cost / License

    • Free
    • Open Source

    Application type

    Platforms

    • Online
    LearnAwesome screenshot 1
  9. Lemmy icon
     Like

    Lemmy is similar to sites like Reddit, Lobste.rs, or Hacker News: you subscribe to forums you're interested in, post links and discussions, then vote, and comment on them. Behind the scenes, it is very different; anyone can easily run a server, and all these servers are...

    Cost / License

    • Free
    • Open Source

    Platforms

    • Online
    • Android
    • iPhone
    • Self-Hosted
    Lemmy screenshot 1
    Lemmy screenshot 1
  10. Link aggregator inspired by Reddit using ActivityPub federation.

    Cost / License

    • Free
    • Open Source

    Application types

    Platforms

    • Online
    • Self-Hosted
    Brutalinks screenshot 1
  11. Mastodon icon
     Like

    Federated and open-source social network with no ads, 500-character limit, custom emojis, and content warnings, emphasizing privacy and personal interaction.

    Cost / License

    • Free
    • Open Source

    Application types

    Platforms

    • Online
    • Android
    • iPhone
    • iPad
    • Self-Hosted
    • F-Droid
    • Cloudron
    • Android Tablet
    Screenshot of the Mastodon web interface
    Social networking, back in your hands
    You're in control. You decide who you see in your home feed. No surprises.
    +6
    Build an audience. Connect with diverse folks across thousands of servers.
  12. Misskey icon
     Like

    A forever evolving, sophisticated microblogging platform.

    Cost / License

    • Free
    • Open Source

    Application types

    Platforms

    • Online
    • Self-Hosted
    Timeline in Home mode
    Timeline in Home mode
    Timeline in Deck mode
    +1
    Profile page
  13. Mobilizon icon
     Like

    From a friends and familiy birthday party to a march for climate change, today, our gatherings are trapped in the tech giants' platforms. How to get organized, how to click on “I join” without providing intimate data on Facebook or locking yourself in MeetUp?

    Cost / License

    • Free
    • Open Source

    Platforms

    • Online
    • Android
    • Android Tablet
    • Self-Hosted
    • F-Droid
    Mobilizon screenshot 1
    Mobilizon screenshot 1
    Mobilizon screenshot 2
    +4
    Mobilizon screenshot 3
  14. Nextcloud icon
     Like

    On-premises file sync, universal access, integrated collaboration, real-time communication with privacy and data control focus.

    Cost / License

    • Free
    • Open Source

    Platforms

    • Mac
    • Windows
    • Linux
    • Online
    • Android
    • iPhone
    • Android Tablet
    • iPad
    • Self-Hosted
    • Snapcraft
    • F-Droid
    • Raspberry Pi
    • Cloudron
    • Docker Hub
    Simple and powerful file sync & share
    Simple upload even for people who don’t have Nextcloud
    Great Android & iOS apps to sync your files.
    +3
    Very easy theming
  15. PeerTube icon
     Like

    PeerTube is a free, decentralized and federated video platform developed as an alternative to other platforms that centralize our data and attention, such as YouTube, Dailymotion or Vimeo. But one organization hosting PeerTube alone may not have enough money to pay for bandwidth...

    Cost / License

    • Free
    • Open Source

    Platforms

    • Online
    • Android
    • iPhone
    • Self-Hosted
    • F-Droid
    • Cloudron
    PeerTube screenshot 1
    PeerTube screenshot 1
    PeerTube screenshot 2
    +2
    PeerTube screenshot 3
  16. Pixelfed icon
     Like

    Pixelfed is an image sharing platform with focus on Privacy, Safety and Security, an ethical alternative to centralized platforms like Instagram.

    Cost / License

    • Free
    • Open Source

    Platforms

    • Online
    • Android
    • iPhone
    • iPad
    • Self-Hosted
    • F-Droid
    • Cloudron
    Pixelfed screenshot 1
    Pixelfed screenshot 1
    Pixelfed screenshot 2
    +3
    Pixelfed screenshot 3
  17. Pleroma icon
     Like

    Pleroma is a free, federated social networking server built on open protocols. It is compatible with GNU Social, Mastodon, and many other ActivityPub and OStatus implementations.

    Cost / License

    • Free
    • Open Source

    Application types

    Platforms

    • Online
    • Self-Hosted
    Pleroma screenshot 1
    Pleroma screenshot 1
    Pleroma screenshot 2
  18. Prismo icon
     Like

    Federated link aggregation powered by ActivityPub.

    Cost / License

    • Free
    • Open Source

    Application type

    Platforms

    • Self-Hosted
    Prismo screenshot 1
  19. Decentralized social network on the fediverse. Usable for both #microblogging and full length #blog posts. Editing both content and replies is supported.

    Cost / License

    • Free
    • Open Source

    Application types

    Platforms

    • Online
    • Self-Hosted
    Social Home screenshot 1
  20. Write.as icon
     Like

    Write.as lets you write and publish text instantly. Write a note for yourself to read later. Create a standalone article you can quickly broadcast on social media — or publish a full blog.

    Cost / License

    • Paid
    • Proprietary

    Platforms

    • Mac
    • Windows
    • Linux
    • Android
    • iPhone
    • Chrome OS
    • Android Tablet
    • iPad
    • Google Chrome
    • Kindle Fire
    Write.as screenshot 1
    Write.as screenshot 1
    Write.as screenshot 2
    +8
    Write.as screenshot 3
  21. Clients

  22. Android

  23. Fedilab icon
     Like

    Fedilab is a multifunctional Android client to access the distributed Fediverse, consisting of microblogging, photo sharing and video hosting.

    Cost / License

    • Free
    • Open Source

    Platforms

    • Android
    • F-Droid
    Fedilab screenshot 1
    Fedilab screenshot 2
    Fedilab screenshot 3
  24. Pawoo icon
     Like

    Japanese Mastodon client with English translation.

    Cost / License

    • Free
    • Proprietary

    Application types

    Platforms

    • Android
    • iPhone
    • Mastodon
    Pawoo screenshot 1
  25. Tootaloo icon
     Like

    A mastodon client for Android.

    Cost / License

    • Free
    • Proprietary

    Application type

    Platforms

    • Android
    Tootaloo screenshot 1
    Tootaloo screenshot 2
    Tootaloo screenshot 3
  26. Tusky icon
     Like

    Lightweight Android client for decentralized social networking, featuring material design, support for photo, video, emoji, lists, drafts, notifications, multiple themes and timelines.

    Cost / License

    • Free
    • Open Source

    Platforms

    • Android
    • Android Tablet
    • F-Droid
    Tusky screenshot 1
    Tusky screenshot 2
    Tusky screenshot 3
  27. iOS

  28. Amaroq icon
     Like

    Amaroq is a lightweight universal client for any Mastodon instance! Simply enter the instance you belong to, log in, and enjoy the all the wonders of the federated social network from your phone.

    Cost / License

    • Free
    • Open Source

    Platforms

    • iPhone
    Amaroq screenshot 1
    Amaroq screenshot 2
    Amaroq screenshot 3
  29. GON icon
     Like

    GON is a Smooth and Confy Client App for Mastodon. You can use for any instance and Easily Switch them. Login to an instance only once makes you easy access between one instance with others.

    Cost / License

    • Free
    • Proprietary

    Platforms

    • iPhone
    • iPad
    GON screenshot 1
    GON screenshot 2
    GON screenshot 3
  30. Mast icon
     Like

    Mast is a beautiful Mastodon and Pleroma app built with iOS design guidelines in mind. It’s as feature-packed as it is gorgeous. With customisable content and themes, it’s most definitely the perfect choice.

    Cost / License

    • Paid
    • Proprietary

    Application type

    Platforms

    • Mac
    • iPhone
    • iPad
    • Pleroma
    • Apple Watch
    • Mastodon
    Mast screenshot 1
    Mast screenshot 1
    Mast screenshot 2
    +6
    Mast screenshot 3
  31. Toot! icon
     Like

    Toot! is a client for the Mastodon social network. It is beautiful, and full of character and whimsy.

    Cost / License

    • Paid
    • Proprietary

    Application types

    Platforms

    • iPhone
    • iPad
    • Mastodon
    Toot! screenshot 1
    Toot! screenshot 2
    Toot! screenshot 3
  32. Cross platform

  33. Halcyon icon
     Like

    A twitter-like web client for Mastodon and Pleroma.

    – Twitter like UI, familiar interface. – Able to use on all instances. – No tracking, No ads.

    Cost / License

    • Free
    • Open Source

    Application type

    Platforms

    • Online
    • Self-Hosted
    Halcyon screenshot 1
  34. Hyperspace is a free (libre) and open-source client for the Mastodon social network and other fediverse networks written in TypeScript and React. It offers a clean, simple, and fun interface that works with any Mastodon instance.

    Cost / License

    • Free
    • Open Source

    Platforms

    • Mac
    • Windows
    • Linux
    • Self-Hosted
    Hyperspace Mastodon client screenshot 1
    Hyperspace Mastodon client screenshot 1
    Hyperspace Mastodon client screenshot 2
    +1
    Hyperspace Mastodon client screenshot 3

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