A curated list of server applications with support for the ActivityPub protocol (Fediverse network) and related standards.
Emoji's for each entry provide additional information on project status:
✔️ Aardwolf: Facebook-like social network connecting communities across the web
🎉 ✔️ Akkoma (site, Fedi account): A community-driven fork of Pleroma with new features such as support for Misskey-flavored Markdown.
✔️ Bonfire Social (site, Fedi account): Your plug & play federated social network. Tend to your digital life in community.
🎉 ✔️ Calckey: An actively developed, community-driven fork of Misskey with many quality of life improvements for users and admins alike
Convene (site, Fedi account): Secure, affordable, private digital spaces for work and play.
🎉 ✔️ Ecko (Fedi account): A fork of Mastodon to optimize toward community, that is making it as easy as possible to contribute
🎉 ✔️ Epicyon (site): ActivityPub server implementing S2S and C2S protocols, suitable for single board computers. Includes features such as moderation tools, post expiry, content warnings, and image descriptions
✔️ FlockingBird (site, Fedi account: social network for professionals (WIP)
🎉 ✔️ FoundKey: A fork of Misskey with various bugfixes and improvements.
🎉 ✔️ Friendica (site): Personal network that helps to keep in contact with friends. Interface and functionality include common features of a mainstream social network
🎉 ✔️ GNU social (site): Microblogging server with multiple plugins
Goldfish Social (Fedi account): Alternative for Vine / TikTok (alpha). ActivityPub will come later!
🎉 groundpolis: A microblogging service forked from Misskey
🎉 ✔️ Glitch-soc (site, Fedi account): A friendly fork of Mastodon, with the aim of providing additional features at the risk of potentially less stable software
✔️ GoToSocial (Fedi account): A headless Mastodon-compatible Fediverse server project, written in Golang.
🎉 ✔️ Hometown (Fedi account): A fork of Mastodon that provides local posting and a wider range of content types
🎉 ✔️ Honk (Fedi account): ActivityPub server with minimal setup and support costs
✔️ Kanzaki: A Mastodon-compatible, ActivityPub-speaking server in OCaml
✔️ Kepi (Fedi account): A Django-based microblogging server, written in Python, which supports the Mastodon protocol.
Kibou: Lightweight social networking server that implements Mastodon's REST API.
Kitsune: An ActivityPub-speaking microblogging service.
Kitsune: ActivityPub-federated microblogging.
🎉 ✔️ Ktistec (Fedi account, site): A single-user ActivityPub server with minimal dependencies, using SQLite, server
🎉 ✔️ Kroeg (site): Generic ActivityPub server, with a focus on microblogging style activities
Unknown , Rust
✔️ lectrn (site): A social network for humans that is free, decentralized, open, and easy to use.
✔️ mammoth (Fedi account): A federated social media platform implementing the ActivityPub specification for client/server and server/server communications.
🎉 ✔️ Mastodon (site): Epic microblogging network with many features and multiple interface layouts to choose from
🎉 ✔️ microblog.pub (site): Self-hosted, single-user, ActivityPub powered microblog.
✔️ MatticNote: ActivityPub compatible SNS that aims to be easy for everyone to use.
✔️ microstatus: Lightweight Mastodon and GNU Social-compatible server implementation
🎉 ✔️ Misskey (site): Interplanetary microblogging platform. Provides many additional features like calendar, emoji reactions, polls, games, and many other widgets
OCamlot: An ActivityPub server written in OCaml.
Personal Reader for Drupal (Fedi account, site): A personal reader on your website which is installable as a PWA on your phone or tablet.
Pinetta - A decentralized, federated social pinboard in the style of Pinterest. In development.
🎉 ✔️ Pleroma (site): Microblogging platform
pub (Fedi account): A tiny ActivityPub host intended for a single actor, that implements Mastodon API for use with various clients.
✔️ pubgate: Lightweight ActivityPub CMS. Implements both client-to-server (C2S) and server-to-server(S2S) APIs. Compatible with Mastodon, Pixelfed, Pleroma and microblog.pub.
pump.io: Still considers adding ActivityPub.
✔️ Rustodon: Mastodon-compatible server
Scuttlebutt: currently working on a bridge between SSB and AP networks.
Seppo (site, Fedi account): A server-side, single-user, Fediverse-integrated microblog engine. Creating static assets published by webserver.
Shuttlecraft (site, Fedi account): A single user ActivityPub server to interact with the Fediverse and other indie web protocols like RSS.
Smalltown: A fork of Mastodon designed for civic communities looking to run their own social networks.
🎉 ✔️ Smithereen: VKontakte-like social network, with friends, walls, photo albums and groups
🎉 ✔️ Socialhome (site): Personal webpage with social networking functionality
✔️ Spritely (site, Fedi account): Research space for a next-gen distributed social network written in Racket and consisting of multiple projects, by AP specification co-author Christine Lemmer Webber.
Streams (Fedi account): Public domain federated communications server. Provides a feature rich ActivityPub and Nomad communication node.
Public domain and others, PHP
✔️ Swanye (Fedi account): A tumblelog in the style of Tumblr.
✔️ Takahē (Fedi account): An experimental Fediverse server for microblogging
🎉 ✔️ Tavern (Fedi account): A minimalistic Activity Pub server. Think Mastodon, but smaller and with fewer features
Vagabond (site): A federated social network built with security and privacy in mind.
👻 Dolphin: Lightweight ActivityPub Server optimized for single-user. A fork and sister project of Misskey
👻 fed: Trying to be a basic twitter-like service that works with ActivityPub. Based on Go-Fed
👻 GangGo - Developer has suspended development for the foreseeable future
👻 Jejune - A work-in-progress ActivityPub server designed to use constructions which provide functional security and resilience
ISC license, Python
👻 Lumen-ap-server (Fedi account): ActivityPub server using Lumen framework
👻 Mistpark 2020 aka 'misty' - A webserver app that supports AP and Zot protocols, fork of Zap. (EOL, replaced by Streams. See #20)
👻 MrBotchi (Fedi account): A federated microblogging platform for single-user - not updated since June 2020
👻 Osada - A full featured social network application. (EOL, replaced by Streams. See #20)
👻 Pylodon - Flask-based (Python) ActivityPub server , source code also on GitLab, no updates on either repo for about a year, nor on their Smilodon client app
👻 Redmatrix 2020: A fediverse server. (EOL, replaced by Streams. See #20)
👻 Roadhouse: Next gen Fediverse server. (EOL, replaced by Streams. See #20)
👻 ShaarliGo: Self-reliantly posting on the #Fediverse with painless hosting and security in mind.
👻 Smilodon (server by Tuxcraft) - abandoned by developer "I'm now working on Sminos and so this will probably be 100% abandoned. There's not much to salvage, its code is cancer." Sminos appears to have never got beyond the initial commits
👻 Technopolis (site, Fedi account): A globally interconnected micro-blogging platform inspired by Misskey - not updated since December 2020
👻 tranquility: Small ActivityPub server written in Rust. (Archived, see issue)
👻 un chapeau: Server for the Mastodon protocol, implemented in Django. Latest commit - May 2019.
👻 Zap: A webserver app that supports AP and Zot protocols (EOL, replaced by Streams. See #20)
Dinolog (Fedi account): Utterly simplified and lightweight blogging protocol. (AP support planned. See toot)
✔️ Dokie.li (site): Article authoring and formating
✔️ GoBlog (site, Fedi account): Simple blogging system written in Go
✔️ Hubzilla (site): CMS with a range of groupware tools available as plug-ins
Known (site, Fedi account): A collaborative social publishing engine (Working on AP support, see this issue).
✔️ Little Library: A digital give-a-book, take-a-book library for ebooks.
✔️ Read.as (site): Reading app by the devs of WriteFreely
site: Minimalist blog that implements ActivityPub endpoints.
✔️ WordPress - listed as a project on the-federation.info. AP plug-in by @firstname.lastname@example.org, that allows users on AP apps to follow WP blogs, and comment on them, from an AP app
🎉 ✔️ WriteFreely (site, Fedi account): Blog software
✔️ Yuforium (Fedi account): A federated community platform that focuses on federated communities so they are no longer constrained to a single entity.
👻 FediBlog (site): Fully customisable blog engine
👻 Lamia: Distributed blogging, polls, and status updates powered by activitypub, python, the gay agenda, and snake women.
👻 NoteIn: No commits since October 2018
👻 Redaktor: AP-powered CMS; website suspended, no actual code repo
✔️ brutalinks (Fedi account): Link aggregator inspired by Reddit
ENiGMA½: A modern BBS software with a nostalgic flair. (see: issue)
Flarum: Experimental plugin for Flarum forum software by @squeevee
✔️ Kbin (site) - Link aggregator and microblogging platform for Fediverse
Lobste.rs: Existing Reddit replacement adding AP support, AP issue still open
✔️ lotide: A federated forum / link aggregator.
✔️ MoonTree: Link aggregator, a work in progress
✔️ Smilodon: the server by Purism used in LibreOne, not the abandoned Tuxcraft server or Pylodon client; a complementary fork of Mastodon, focusing on opt-in public spaces
vxwClub: Simple social groups compatible with ActivityPub.
👻 Anancus: By @tuxether, Link aggregator, discontinued?
👻 Prismo (Fedi account): Link aggregator. Latest update - May 2019.
✔️ Anfora (site): (formerly Zinat) Image sharing
✔️ CastoPod Host (site, Fedi account): An open-source hosting platform made for podcasters who want engage and interact with their audience.
✔️ Catcast D (Fedi account): A federated video live streaming platform
✔️ FChannel: A libre, self-hostable, federated, imageboard platform that utilizes ActivityPub.
✔️ Librecast LIVE (Fedi account, site): Live Streaming Video Platform with Multicast
✔️ Minipub (site): Minimal ActivityPub server for posting federated podcast comments
✔️ Owncast (site, Fedi account): Owncast is a self-hosted live video and web chat server for use with existing popular broadcasting software.
🎉 ✔️ PeerTube (Fedi account, site): Video-hosting site using WebTorrent
🎉 ✔️ PixelFed (site, Fedi account): Photo Sharing. For Everyone. A free and ethical photo sharing platform.
Podverse (Fedi account, site): Web app for the Podverse podcast clip sharing system.
snap.as (Fedi account, site): Snap.as is a minimalist tool for publishing and sharing your photos on the web. (Not really started yet)
👻 Acorde - federated social music platform. Almost a year has passed since the initial commit
👻 Fontina - proposed as a photo-sharing social media network. GH repo has gone read-only, and now says "dead project"
👻 Marmota: Streaming service like Spotify. No commits - since March 2019
👻 Pubcast (site): Podcasting platform that allows people to listen to podcasts in a new way. Latest commit - March 2019.
👻 PeerPx: Social network for photographers (alternative to 500px / Flickr); Latest commit - October 2018
👻 ✔️ reel2bits (site): Music and podcast hosting,
👻 Soundstorm: The Federated Social Audio Platform. (Currently inactive, see issue)
🎉 ✔️ Gancio (site): Shared agenda for local communities; demo site
✔️ Gath: Public events with no registration required, an instance connected with the friend.camp Mastodon instance is up at: http://events.friend.camp
GetTogether - Still considering adding AP support
✔️ Mobilizon (site, Fedi account): Aims to be more than a Meetup clone
✔️ The Occasion Octopus (site, Fedi account): A federated network ofOpen Data for discovering interesting events
Friendica (see above) has an events engine that federates events over AP and is looking to test interop with other AP events apps. NextCloud federated events are in the works but this may or may not be AP-compatible.
👻 FedEvent: A prototype for federating event information
Artist Hub (site): Part of Creative Passport NGI0-funded project for providing a verified digital ID for Music Makers (very early stage of development)
🎉 ✔️ NextCloud-Social (site): Social networking app for NextCloud
MoodleNet: Social client for Moodle LMS (Learning Management System) aimed at helping teachers collaboratively collate and curate sets of OER (Open Educational Resources)
👻 Calendar-social - was definitely planning to implement AP. Missing, presumed discontinued
✔️ bopwiki (Fedi account): An experimental 'microwiki implementation' / 'mini CMS' with ActivityPub support.
GPL-3.0, Common Lisp
Chatter Net: Chatter Net is a modern decentralized semantic web built atop self-sovereign identity.
✔️ CPub: a semantic web server, implements a Linked Data Platform (LDP), uses RDF Turtle as serialization format, part of the openEngiadina project
✔️ Inventaire (site, Fedi account): A libre collaborative resource mapper powered by open-knowledge, starting with books. (Considers AP integration, see Github issue)
✔️ OLKi (site, Fedi account): A self-hosted linguistic corpora exchange platform that aims to be a simple gateway to the Fediverse for scientific interaction
Openki (site): An interactive p2p web-platform to provide barrier-free access to education for everyone. (not federated yet, see AP feature request)
✔️ SemApps (site): A collaborative, generic knowledge management system. Aims to ease data storage and filtering.
✔️ SkoHub (site): Creates a publication / subscription infrastructure for Open Educational Resources. It allows to follow specific subjects and to be notified when new content about that subject is published.
XWiki (site, Fedi account): An advanced open source Enterprise Wiki (via the ActivityPub Extension).
LGPL 2.1, Java
✔️ 🎉 Bookwyrm (site, Fedi account): A federated alternative to Goodreads (non-OSS license)
ANTI-CAPITALIST SOFTWARE LICENSE v1.4, Python
✔️ Learn Awesome: Open-source equivalent review aggregation site. Think GoodReads, but generalized to all learning resources organized by topics, formats and difficulty.
👻 exlibris: A social network dedicated to tracking and discussing what you're reading, based on go-fed (development stalled, see this toot). Latest commit - October 2020
👻 Readlebee ( Fedi account): An attempt to create a viable Goodreads alternative, book reading progress, lists, reviews, comments (Project looking for new Maintainers)
✔️ Dharma: A federated community-building platform for Eve Online corporations.
✔️ Guild Website: Federating guild website using GuildWars2 API
✔️ castling.club (site, Fedi account): Challenge someone to a game of chess using toots. An ActivityPub server with a single hardcoded King service actor that acts as a chess arbiter.
✔️ Wolfgame (Fedi account): Wolfgame is a lot like Mafia. Once started the game simulates day/night cycle and allows players to vote for who might be a werewolf during the day.
👻 FediQuest (site): A federated alternative to traditionally centralized question & answer platforms, such as Quora/StackOverflow.
✔️ ForgeFlux (site, Fedi account): API-space software forge federation. Will implement ForgeFed external to the forges, using the forge's HTTP APIs.
✔️ ForgeFriends (site, Fedi account): An online service to federate forges.
Gitea (site): A community managed lightweight code hosting solution. (In progress. For status, see: go-gitea/#18240, gitea/#3)
Git Social: A federated self-hosted git repository management tool
Ruisseau: Federated Git platform (still in early stages of development).
✔️ Vervis (Fedi account): Eventually-decentralized project hosting and management platform. Reference implementation for ForgeFed protocol extension.
👻 Distbin (site): Post bin. Latest commit - September 2019.
✔️ apevents (Fedi account) - Event management system that allows event creation and coordination across Fediverse
✔️ AP-Groups (site, Fedi account): Group actors as bot/relay.
✔️ Fediplan (site, Fedi account): A way to safely schedule messages with Mastodon and Pleroma.
🎉 ✔️ Group actor (Fedi account): Groups work with any software that implements Mastodon client API; has moderation, admin announcements, test server
🎉 ✔️ Guppe (site): By @datatitian, adds "groups" support as group-type actors
🎉 ✔️ Mastodon Bot Autoresponder (Fedi account): a bot that implements group functionality in Mastodon.
✔️ tootgroup.py: Emulate group accounts on Mastodon.
activitypub-core: An attempt to build a spec-compliant ActivityPub server in Node.js.
Alovoa (site): Free and open-source dating platform that respects your privacy (considering AP support, see issue)
Communecter (site): Manage cities as a connected citizen, produce openCityData, manage organizations, projects, events openly, an open societal approach (intends to add AP support, see this issue)
✔️ Corteza (site): "Digital Work Platform for Humanity" an open-source, low-code federated platform for building cloud-based business apps with CRM capabilities
FairSync (site): Develops and collects best practices to synchronize maps and events and to federate messengers and identities. (Funded with NGI0, implementing ActivityStreams, but AP support not clear, currently unlicensed)
✔️ FitTrackee (Fedi account): A simple self-hosted workout / activity tracker. (Still considering AP support, see issue)
✔️ hvxahv-platform (site: A multifunctional decentralized social network implementation.
✔️ Immers Space (Fedi account): The decent(ralized) metaverse.
Inbox (site): An application built for a diploma thesis to showcase work with Linked Data Notifications, Activity Streams and ActivityPub, using Solid pod as data provider. (See also Solid forum discussion. No license, see issue)
Life Server (site): A decentralized personal data framework inspired by MIT's Solid Project (AP support planned, see Roadmap),
✔️ Ocelot Social: Free and open-source social network for active citizenship.
retrospring (site, Fedi account): Q&A based social network. Ask questions, give answers and learn more about your friends. (AP support planned. See: Github issue)
Smartlike (site, Fedi account): A free non-profit decentralized donation processor with a focus on freedom, privacy and efficiency.
Transit Fedilerts ([site])(https://transit.alerts.social/)): ActivityPub-compliant server for distributing transit service alerts.
👻 Agora: Home page, POC to use ActivityPub on top of the Solid Platform. - developed by @email@example.com. Latest commit - June 2020
👻 Indienet - homepage - abandoned in favour of Tincan development
👻 Numa - built on Ethereum blockchain but intended to federate with AP. No commits since April 2018. No reply on issue about AP compatibility testing from May 8. Homepage now a spam site
👻 Pantheon: Platform for building communities. No commits - since September 2019
Aside from project homepages and issue trackers, and comments made on the fediverse, the SocialWG has a list of projects they hoped would implement ActivityPub and links to issues where it's discussed. Also, there is an implementation report on ActivityPub.rocks. @Mayel from Social.coop created a web spreadsheet of AP apps and their characteristics. More projects using AP are profiled on We Distribute by Sean Tilley and his team. There are boards for discussing a range of AP implementations on the SocialHub forum. Alternative.to has a list of AP servers and client apps. The ActivityPub tag on GH is also a way to discover projects experimenting with AP.
If you have questions or feedback regarding this list, then please create an Issue in our tracker, and optionally
@mention one or more of our maintainers:
With delight we present you some of our delightful contributors (please add yourself if you are missing).