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Fediverse & ActivityPub

Fediverse & ActivityPub tools -- a subcategory of Social & Community

31 tools 10 SaaS alternatives

Replace Popular SaaS

31 Tools

Mastodon

50K

Decentralized social network where you own your audience. No algorithm, no ads, no corporate control. Part of the Fediverse via ActivityPub.

NodeBB

15K

NodeBB Forum Software - The Modern Discussion Platform

PeerTube

15K

A free software to take back control of your videos! With more than 600,000 hosted videos, viewed more than 70 millions times and 150,000 users, PeerTube is the decentralized free software alternative to videos platforms developed by Framasoft

Lemmy

14K

Lemmy is a self-hosted fediverse & activitypub replacement for Bitly, Buffer, and more.

Misskey

11K

Misskey is a self-hosted fediverse & activitypub replacement for Twitter.

PixelFed

6.9K

PixelFed is a PHP-based application that provides decentralized photo sharing platform.

WriteFreely

5.1K

WriteFreely handles writing software for starting a minimalist, federated blog — or an entire community as a self-hosted solution.

GoToSocial

4.2K

GoToSocial is a Docker/Go-based application that provides activityPub federated social network server implementing the Mastodon client API.

BookWyrm

2.7K

BookWyrm is a self-hosted fediverse & activitypub replacement for Bitly, Buffer, and more.

Friendica

1.7K

Friendica is a self-hosted fediverse & activitypub replacement for Facebook.

Pinkary

1.5K

Self-hosted fediverse & activitypub tool that provides federated landing page for links and connecting with others without the noise.

Castopod

832

Castopod is a self-hosted fediverse & activitypub tool with support for ActivityPub / Fediverse, Podcasts.

NeoDB

797

For fediverse & activitypub, NeoDB is a self-hosted solution that provides federated tracking server.

Postmarks

539

Postmarks is a self-hosted fediverse & activitypub tool that provides single-user bookmarking for the Fediverse.

Hollo

446

Hollo is a self-hosted fediverse & activitypub tool that provides federated single-user microblogging software.

gathio

438

Gathio is a self-hosted fediverse & activitypub tool that provides self-destructing, shareable, no-registration event pages.

Ktistec

426

Ktistec is a self-hosted fediverse & activitypub tool with support for ActivityPub / Fediverse, Social Media.

Snac

411

Released under MIT, Snac provides simple, minimalistic ActivityPub instance on self-hosted infrastructure.

Mbin

392

Self-hosted fediverse & activitypub tool that provides federated content aggregator and microblogging platform.

Socialhome

378

Socialhome gives you federated and decentralized profile builder and social network engine on your own infrastructure.

Flohmarkt

313

Flohmarkt is a self-hosted fediverse & activitypub replacement for Shopify.

PieFed

226

PieFed is a self-hosted fediverse & activitypub replacement for Reddit.

T

Tootik

195

Tootik is a self-hosted fediverse & activitypub tool that provides federated nano-blogging service with federation.

Mitra

175

Mitra lets you run federated micro-blogging platform entirely on your own server.

Mobilizon

155

Mobilizon is a self-hosted fediverse & activitypub tool that provides federated organization and mobilization platform.

B

Betula

127

Betula lets you run federated personal link collection and bookmark manager entirely on your own server.

Akkoma

70

Akkoma lets you run microblogging server software with ActivityPub support entirely on your own server.

Hubzilla

53

For fediverse & activitypub, Hubzilla is a self-hosted solution that provides community websites that can interact with each other.

Gancio

45

Gancio is a self-hosted fediverse & activitypub tool that provides shared agenda for local communities.

Funkwhale

17

Funkwhale is a Python-based application that publishes audio content across the federated web.

Pleroma

3

Released under AGPL-3.0, Pleroma provides microblog server with ActivityPub support on self-hosted infrastructure.

Why Self-Host Your Fediverse Instance?

Centralized social platforms like Facebook, X (Twitter), and Threads control your audience, your content, and your reach through opaque algorithms. They can suspend accounts, change API terms, or alter feed algorithms overnight — and you have no recourse because you do not own the infrastructure. The fediverse, built on the ActivityPub protocol, fundamentally changes this dynamic: each instance is independently operated, and users across different servers can follow and interact with each other seamlessly. Running your own instance means you set the moderation rules, you control the data, and your community cannot be de-platformed by a corporate decision.

Mastodon is the most widely deployed fediverse microblogging platform, offering a Twitter-like experience with chronological timelines and no advertising. GoToSocial provides a lighter-weight alternative that uses fewer server resources while maintaining full ActivityPub compatibility. For specific content types, PeerTube replaces YouTube with federated video hosting, Pixelfed offers an Instagram-like photo sharing experience, and BookWyrm creates a federated Goodreads alternative for book reviews and reading lists. Lemmy and PieFed provide Reddit-style link aggregation and discussion forums that federate across instances.

The fediverse ecosystem extends well beyond microblogging. Castopod enables podcast hosting with built-in ActivityPub support so episodes appear directly in followers’ feeds. WriteFreely offers a minimalist blogging platform that federates posts as ActivityPub actors. Friendica provides a Facebook-like experience with groups, events, and cross-protocol connectivity to Mastodon, Diaspora, and email. Misskey and its fork Akkoma offer feature-rich microblogging with custom emoji, reactions, and advanced formatting. The shared protocol means your Mastodon followers can comment on your PeerTube videos or interact with your BookWyrm reviews — an interoperability that no centralized platform offers.

Why Self-Host Your Fediverse Instance?

The fediverse represents a fundamentally different model from centralized platforms like Facebook, X (Twitter), and Threads. Instead of one company controlling the network, content moderation, and algorithm, each instance is independently operated and communicates via the ActivityPub protocol. Running your own Mastodon, GoToSocial, or Misskey instance means you set the rules — your moderation policies, your terms of service, your data retention — while still being able to follow and interact with users across the entire federated network.

Mastodon is the most widely deployed fediverse platform, but the ecosystem is far broader than microblogging. PeerTube provides federated video hosting as an alternative to YouTube. Pixelfed handles photo sharing in the style of Instagram. Lemmy and PieFed offer Reddit-like link aggregation and discussion. BookWyrm creates a federated book review network. Funkwhale handles music sharing. Castopod federates podcasts. Each of these connects to the same ActivityPub network, so a Mastodon user can follow a PeerTube channel or comment on a BookWyrm review without creating separate accounts.

For smaller communities, lightweight alternatives like GoToSocial, Pleroma, Akkoma, and Snac provide Mastodon-compatible interfaces with significantly lower resource requirements — GoToSocial runs comfortably on a single-core VPS with 512MB of RAM. Friendica bridges the fediverse with legacy social networks. Hollo provides a single-user ActivityPub server for personal publishing. The key advantage across all of these is data portability: if you decide to move your instance or switch software, your social graph and content travel with you rather than being locked inside a platform you do not control.