List of Free Software Social Media platforms

Platforms

This is a list of Social Media platforms, available as Free Software

Social Media platforms

Name	Website	Type	Scope	Protocol	License	Source
Bitmessage	https://bitmessage.org/	Instant Messaging (P2P)	Decentralized	Blockchain (protocol specification)	MIT	https://github.com/Bitmessage/PyBitmessage
Briar	https://briarproject.org/	Instant Messaging, Forums (P2P)	Decentralized		GPL v3	https://code.briarproject.org/akwizgran/briar/tree/master
Diaspora	https://diasporafoundation.org/	Microblog+	Federated	OStatus+	GNU AGPL v3	https://github.com/diaspora/diaspora
Friendica	http://friendica.com/	Microblog+	Federated	OStatus+	GNU AGPL v3	https://github.com/friendica/friendica
GNU social	https://gnu.io/social/	Microblog	Federated	OStatus	GNU AGPL v3	https://git.gnu.io/gnu/gnu-social
Hubzilla (Red Matrix)	https://hubzilla.org/hubzilla/		Federated	Ostatus+	Hubzilla custom	https://github.com/redmatrix/hubzilla/
Kontalk	https://kontalk.org/	Instant Messaging	Federated	XMPP	Clients: GPL v3.0 Server: ???	https://github.com/kontalk/
Libertree	http://libertree.org/			Libertree Custom protocol	GPL	https://github.com/Libertree/libertree
Mastodon	http://mastodon.social/	Microblog	Federated	OStatus	AGPL v3.0	https://github.com/tootsuite/mastodon
Matrix	http://matrix.org/	Instant Messaging	Federated	OStatus+	Apache v2	https://github.com/matrix-org/synapse
Movim	https://movim.eu	Instant Messaging	Federated	XMPP	AGPL v3.0	https://github.com/movim/movim
Pjuu	https://pjuu.com/	Microblog	Standalone		GNU AGPL v3	https://github.com/pjuu
Pleroma	https://gitgud.io/lambadalambda/pleroma	Microblog	Federated	OStatus	AGPL v3.0	https://gitgud.io/lambadalambda/pleroma https://gitgud.io/lambadalambda/pleroma-fe
PostActiv	http://www.postactiv.com/	Microblog	Federated	OStatus	AGPL v3.0 or higher	https://git.postactiv.com/postActiv/postActiv/
Pump.io	http://pump.io/	Microblog	Federated	ActivityStream	Apache v2	https://github.com/e14n/pump.io
Ricochet	https://ricochet.im/	Instant Messaging P2P	Decentralized	Ricochet Custom protocol over Tor	BSD 3-clause	https://github.com/ricochet-im/ricochet
ring.cx	https://ring.cx/	Instant Messaging	Federated	SIP	GPL v3	https://gerrit-ring.savoirfairelinux.com/
Rocket.Chat	https://rocket.chat/	Instant Messaging			MIT	https://github.com/RocketChat/Rocket.Chat
rstat.us	https://rstat.us/	Microblog	Federated	OStatus	CC0	https://github.com/hotsh/rstat.us
Scuttlebot	https://scuttlebot.io/	Instant Messaging (?)	Peer to Peer	Secure Scuttlebutt	MIT	https://github.com/ssbc/scuttlebot
Steemit	https://steemit.com/	Microblog+	Decentralized	Blockchain	MIT	https://github.com/steemit
Tokumei	https://tokumei.co/	Microblog	Standalone		ISC	https://git.tokumei.co/tokumei
Tox	https://tox.chat/	Instant Messaging	Federated		GPL v3	https://github.com/irungentoo/toxcore/
Trsst	https://home.trsst.com/	News Aggregator + Microblog			Apache v2	https://github.com/TrsstProject/trsst
Twister	http://twister.net.co/	Microblog (P2P)	Decentralized	Blockchain + Bittorrent	MIT	https://github.com/miguelfreitas/twister-core (daemon) https://github.com/miguelfreitas/twister-html (WebUI)
Voat	http://voat.co	News Aggregator	Standalone		GPL v3	https://github.com/voat/voat
Wire	https://wire.com	Instant Messaging	Standalone (Federation planned)		GPL v3 (clients), AGPL v3 (server)	https://github.com/wireapp
ZeroNet	http://zeronet.io/	Microblog (P2P)	Decentralized	Blockchain + Bittorrent	GNU GPL v2	https://github.com/HelloZeroNet/ZeroNet
Zulip	https://zulipchat.com/	Group Chat	Standalone (?)		Apache v2.0	https://github.com/zulip/zulip

See also

• Erkan Yılmaz's List of Federated Communication Platforms
• Wikipedia:List of social networking websites
• SecureShare's Capability Comparison
• Kickball Awesome-Selfhosted - Social Networks and Forums

Social Media Connectivity Matrix

Which Free Software Social Media platforms connect to which?

The !Fediverse with protocols

Notes:

• Pleroma works with ActivityPub and OStatus, not Diaspora
• GNUsocial does not (yet) support ActivityPub (2018-10-10)
• Pump.io does not (yet) support ActivityPub (2018-10-10)

Social Media Protocol Connectivity Chart

The Social Network Protocol/Alliance Map

Social Connectivity Matrix

Social Media Connectivity Matrix

From → To ↓	Briar	Diaspora	Friendica	GNU social	Hubzilla	Mastodon	Matrix	Pjuu	Pump.io	rstat.us	Trsst	Twister	Voat	Zeronet
Briar
Diaspora
Friendica
GNU social and derivatives PostActiv, Pleroma, Quitter
Hubzilla
Mastodon
Matrix
Pjuu
Pump.io
rstat.us
Trsst
Twister
Voat
Zeronet

Needed: Nomenclature

Type

The following terms are used in the table, but we need to find better terms for some of these services. Help?

Instant Messaging 

(What do we mean by this?)

Forum 

(What do we mean by this?)

Microblog 

(What do we mean by this?)

Microblog+ 

(What do we mean by this?)

News Aggregator 

(What do we mean by this?)

P2P 

(Is this really a type of platform?)

Scope

Distributed 

(What do we mean by this?)

Federated 

(What do we mean by this?)

Standalone 

Has no connectivity to other services, even ones based on the same platform running the same software.