Microblogging is a form of blogging using short posts without titles known as microposts. Microblogs "allow users to exchange small elements of content such as short sentences, individual images, or video links", which may be the major reason for their popularity. Some popular social networks such as X (Twitter), Threads, Tumblr, Mastodon, Bluesky and Instagram can be viewed as collections of microblogs.
GNU social is a free and open-source microblogging social networking service that implements the OStatus and ActivityPub standards for interoperability between installations. While offering similar functionality to social networks such as Twitter, GNU social seeks to provide the ability for open and federated communication between different microblogging communities, known as 'instances'. Both enterprises and individuals can install and control their own instances and user data.
A distributed social network or federated social network is an Internet social networking service that is decentralized and distributed across distinct service providers, such as the Fediverse or the IndieWeb. It consists of multiple social websites, where users of each site communicate with users of any of the involved sites. From a societal perspective, one may compare this concept to that of social media being a public utility.
The tables below compare general and technical information for some notable active microblogging services, and also social network services that have status updates.
OStatus is an open standard for decentralized social networking, allowing users on one service to send and receive status updates with users from another. The standard describes how a suite of various standards, including Atom, Activity Streams, WebSub, Salmon, and WebFinger, can be used together, which enables different microblogging server implementations to communicate status updates between their users back-and-forth, in near real-time.
Friendica is a free and open-source software distributed social network. It forms one part of the Fediverse, an interconnected and decentralized network of independently operated servers.
Distributed social network projects generally develop software, protocols, or both.
PeerTube is a free and open-source, decentralized, ActivityPub federated video platform powered by WebTorrent, that uses peer-to-peer technology to reduce load on individual servers when viewing videos.
Vivaldi Technologies AS is a Norwegian software development company, most known for its creation of the Vivaldi Browser. Headquartered in Oslo, Norway, it was founded in 2013 by Jon von Tetzchner and Tatsuki Tomita. Tetzchner was one of the founders, and formerly the CEO, of Opera Software, a software company which developed the web browser Opera. About 20 former Opera employees joined him at Vivaldi Technologies. In January 2017, the company had 35 employees. As of September 2021, the company has listed 54 employees.
Framasoft is an education-oriented social network created in November 2001 by Alexis Kauffmann, Paul Lunetta, and Georges Silva. Since 2014, it has been supported by a nonprofit organization of the same name based in Lyon, France. Mainly focused on free software valorisation, it is divided into three main branches of activity based upon a collaborative model: promotion, dissemination, and development of free software, enrichment of the free culture movement, and online services.
Mastodon is an open source, self-hosted, social networking service. Mastodon uses the ActivityPub protocol for federation which allows users to communicate between independent Mastodon instances and other ActivityPub compatible services. Mastodon has microblogging features similar to Twitter, and is generally considered to be a part of the Fediverse.
The fediverse is a collection of social networking services that can communicate with each other using a common protocol. Users of different websites can send and receive status updates, multimedia files and other data across the network. The term fediverse is a portmanteau of "federation" and "universe".
ActivityPub is a protocol and open standard for decentralized social networking. It provides a client-to-server API for creating and modifying content, as well as a federated server-to-server (S2S) protocol for delivering notifications and content to other servers. ActivityPub has become the main standard used in the fediverse, a popular network used for social networking that consists of software such as Mastodon, Pixelfed and PeerTube.
Pleroma is a free and open-source microblogging social networking service. Unlike popular microblogging services such as Twitter or Weibo, Pleroma can be self-hosted and operated by anyone with a server and a web domain, a combination commonly referred to as an instance. Instance administrators can manage their own code of conduct, terms of service, and content moderation policies, allowing users to have more control over the content they view as well as their experience. It was named after the religious concept of pleroma, or the totality of divine powers.
Pixelfed is a free and open-source image sharing social network service. The platform uses a decentralized architecture which is roughly comparable to e-mail providers, meaning user data is not stored on one central server. It uses the ActivityPub protocol, allowing users to interact with other social networks within the protocol, such as Mastodon, PeerTube, and Friendica. Pixelfed and other platforms utilizing this protocol are considered to be part of the Fediverse.
Sepia Search is a video search engine for PeerTube. It is developed by the French non-profit organisation Framasoft.
Eugen Rochko is a Russian-born German-French software developer, best known as the creator of Mastodon, a decentralized open-source social networking platform consisting of a large number of independently run nodes, known as instances, each with its own code of conduct, terms of service, privacy policy, privacy options, and moderation policies.
Lemmy is a free and open-source software for running self-hosted social news aggregation and discussion forums. These hosts, known as "instances", communicate with each other using the ActivityPub protocol.
Christine Lemmer-Webber is a software engineer, best known for her lead authorship and co-editorship of ActivityPub. She is currently the Executive Director at Spritely Institute.
Misskey is an open source, federated, social networking service created in 2014 by Japanese software engineer Eiji "syuilo" Shinoda. Misskey uses the ActivityPub protocol for federation, allowing users to interact between independent Misskey instances, and other ActivityPub compatible platforms. Misskey is generally considered to be part of the Fediverse.
