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Pleroma (software)

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Pleroma is a free and open-source self-hosted distributed social networking and microblogging service. It implements the ActivityPub protocol (and formerly, OStatus[1][2]), making Pleroma instances part of the wider Fediverse, an interconnected and decentralized network of independently operated servers.

Developer(s)Lain, et. al
Stable release
2.2.1 / Lua error in Module:Wikidata at line 879: attempt to index field 'wikibase' (a nil value).
Written inElixir (Phoenix), JavaScript (Vue.js)
    Operating systemUnix, Linux, BSD
    PlatformWeb, iOS, Android, Linux and PureOS, BSD, Sailfish OS, macOS, Windows
    Website{{URL|example.com|optional display text}}

    Amazon.com Logo.png Search Pleroma (software) on Amazon.

    Like other Fediverse instances, idependently hosted servers running Pleroma (referred to as "instances") provide a federated microblogging experience to netizens, similar to Twitter or Weibo. Users can post, follow, and interact with other users across Pleroma and non-Pleroma instances (Mastodon, PeerTube, Friendica, etc.) seemlessly. Instance operators manage their own code of conduct, terms of service, and moderation policies, allowing users to settle on and roam instances, and browse content accordingly.

    As of mid 2020, Pleroma is the second most popular Fediverse server software behind Mastodon, according to fediverse.network, with about 13% share of all instances, and about 1% of Fediverse "users".[3]


    In 2016, Pleroma was created and maintained by the pseudonymous identity "Lain"[4] and was originally just a client-side alternative for the GNU social frontend Qvitter[5][6][7], which resembled an earlier Twitter user interface.

    On February 22, 2019, the first stable release of Pleroma, Version 0.9.9[4][8], was released. This release included a backend implemented of OStatus and ActivityPub which was written in Elixir and the Phoenix framwork, and built with PostgreSQL.[9]

    On June 28, 2019, Pleroma Version 1.0.0 was released.[10][8] This release contained bugfixes and security releases.[10]

    On December 13, 2019, Pleroma Version 1.1.7 was released.[8] This release integrated a captcha provider and enabled it by default.[8]

    On December 14, 2019, the first version of the Pleroma frontend, called Pleroma FE, is released.[11] It is written with the Vue.js JavaScript framework.[12] Pleroma also provides a Mastodon frontend[9] and an alternative Gopher frontend.[13]

    On March 8, 2020, Pleroma Version 2.0 was released.[14][8] This release dropped support for the older OStatus protocol, due to its declining use and buggy code;[14][15] included database performance optimizations;[14] and added emoji reactions.[15]

    On August 28, 2020, Pleroma Version 2.1 was released.[16][8] This release included fixes and the new feature of chats.[16]

    On December 23, 2020, Pleroma Version 2.2.1 was released.[17][8] This release updated Pleroma FE and included fixes for a few backend bugs.[17] According to the Official Pleroma website, this is the latest release.[12]

    Pleroma-tan, Pleroma's mascot

    Functionality and features[edit]

    Pleroma is described as being less bloated than alternatives like Mastodon, having fewer software dependencies, and less resource intensive.[18]

    Pleroma instances run software that communicates with the ActivityPub protocol. This connects Pleroma users to any other Fediverse software server that supports ActivityPub.

    Pleroma's default, configurable post length limit is 5000 characters.[9][19] It is capable of uploading and sharing multimedia posts, as well as polls.[10]


    The Debian community is in the process of hosting their own social network using Pleroma.[20][21]

    See also[edit]

    • The Fediverse
    • Comparison of software and protocols for distributed social networking
    • Comparison of microblogging services


    1. https://medium.com/we-distribute/activitypub-support-lands-in-pleroma-96635b7d6fde
    2. "ostatus removal (!1854) · Merge Requests · Pleroma / pleroma". GitLab. 2019-10-17. Retrieved 2021-01-21. Unknown parameter |url-status= ignored (help)
    3. https://fediverse.network/servers
    4. 4.0 4.1 "Pleroma's First Release! 0.9.9". blog.soykaf.com. 2019-02-22. Retrieved 2021-01-21.
    5. "Files · 191c02af1ebfc7e6c53dc88d97c4e3ca23fbea8b · Pleroma / pleroma-fe". GitLab. 2016-10-26. Retrieved 2021-01-21. Unknown parameter |url-status= ignored (help)
    6. Tilley, Sean (2017-09-24). "A quick guide to The Free Network". Medium. Retrieved 2021-01-21.
    7. https://medium.com/we-distribute/blushy-crushy-fediverse-idol-a-chat-with-lain-about-pleroma-4ff578b99752
    8. 8.0 8.1 8.2 8.3 8.4 8.5 8.6 "CHANGELOG.md · develop · Pleroma / pleroma". GitLab. Retrieved 2021-01-21.
    9. 9.0 9.1 9.2 "What Is Pleroma?". blog.soykaf.com. 2018-03-07. Retrieved 2021-01-21.
    10. 10.0 10.1 10.2 "Pleroma 1.0.0". blog.soykaf.com. 2019-06-28. Retrieved 2021-01-21.
    11. "CHANGELOG.md · develop · Pleroma / pleroma-fe". GitLab. Retrieved 2021-01-21.
    12. 12.0 12.1 "Pleroma". pleroma.social. Retrieved 2021-01-21.
    13. https://blog.soykaf.com/post/gopher-support-in-pleroma/
    14. 14.0 14.1 14.2 "Releasing Pleroma 2.0.0 — Pleroma Blog". pleroma.social. 2020-03-08. Retrieved 2021-01-21. Unknown parameter |url-status= ignored (help)
    15. 15.0 15.1 Tilley, Sean (2020-03-23). "Hooray! Pleroma Officially Releases 2.x Series". We Distribute. Retrieved 2021-01-21.
    16. 16.0 16.1 "Releasing Pleroma 2.1.0 — Pleroma Blog". pleroma.social. 2020-08-28. Retrieved 2021-01-21. Unknown parameter |url-status= ignored (help)
    17. 17.0 17.1 "Pleroma patch release: 2.2.1 — Pleroma Admin Announcements". pleroma.social. 2020-12-23. Retrieved 2021-01-21. Unknown parameter |url-status= ignored (help)
    18. https://linuxreviews.org/Pleroma
    19. "Pleroma User's Guide". edith.reisen. Retrieved 2021-01-21.
    20. "Debian Looks To Go More Social From Microblogging To A Federated Image+Video Platform - Phoronix". www.phoronix.com. Retrieved 2021-01-21.
    21. "Announcing Debian Social". lists.debian.org. 2020-03-19. Retrieved 2021-01-21. Unknown parameter |url-status= ignored (help)

    External links[edit]


    New entry. English version of French article, with introductory brief.[edit]

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