Software:Misskey

From HandWiki
Misskey
Logo of Misskey
Original author(s)syuilo
Initial release2014; 12 years ago (2014)
Stable release
2024.10.1[1] / October 15, 2024[lower-alpha 1]
Written inTypeScript
Operating systemCross-platform
Available in28 languages
TypeMicroblogging
LicenseGNU Affero General Public License 3.0
Website{{{1}}}

Misskey[lower-alpha 2] is an open source, federated, social networking service[2][3] created in 2014 by Japanese software engineer Eiji "syuilo" Shinoda.[4] Misskey uses the ActivityPub protocol for federation, allowing users to interact between independent Misskey instances, and other ActivityPub compatible platforms such as Mastodon and Wordpress. Misskey is generally considered to be part of the Fediverse.[5]

Despite being a decentralized service, Misskey is not philosophically opposed to centralization.[6] The name Misskey comes from the lyrics of Brain Diver, a song by the Japanese singer May'n.[7]

History

Misskey was initially developed as a BBS-style internet forum by high school student Eiji Shinoda in 2014.[8] In 2018, Misskey added support for ActivityPub, becoming a federated social media platform.[9][10]


Misskey, alongside Mastodon and Bluesky, has received attention as a potential replacement for Twitter following Twitter's acquisition by Elon Musk in 2022.[11]

On April 8, 2023, Misskey.io incorporated as MisskeyHQ K.K. As of February 2024, over 450,000 users were registered, making it the largest instance of Misskey.[12] Misskey.io is crowdfunded. The administrator of Misskey.io is Japanese system administrator Yoshiki Eto, who operates under the alias Murakami-san. Eiji Shinoda serves as director.[13]

In July 2023, Twitter introduced extreme restrictions on their API in order to combat scraping from bots. Some users were critical of the changes, and as a result migrated to other social networks. The number of users registering on Misskey.io, Misskey's official instance and the largest one, increased rapidly, with other Misskey instances also receiving a spike in signups.[14][15] In response to this trend, Skeb (ja), a platform for sharing art, announced on July 14, 2023 that it would sponsor the Misskey development team.[16]

In early 2024, Misskey was targeted by a spam attack from Japan. The cause of the attack is believed to be a dispute between rival groups on a Japanese hacker forum and a DDoS attack on a Discord bot. Mastodon instances with open registration were used in the attack.[17]

In November 2025, Eto announced intentions to replace ActivityPub with Misskey's own low-overhead federation system in "a few years".[18] Shinoda later said that this was "fake news".[19]

Development

Misskey is open source software and is licensed under the AGPLv3.[20] The Misskey API is publicly available and is documented using the OpenAPI Specification, which allows users to build automated accounts and use it on any Misskey instance. The service is translated using Crowdin.

Misskey is developed using Node.js. TypeScript is used on both the frontend and backend. PostgreSQL is used as its database. Vue.js is used for the frontend.[3]

Functionality

Posts on Misskey are called "notes". Notes are limited to a maximum of 3,000 characters (a limit which can be customized by instances), and can be accompanied by any file, including polls, images, videos, and audio. Notes can be reposted, either by themselves or with another "quote" note.[3]


Third-party clients

Third-party clients that support Misskey include Milktea for Android and MissCat for iOS.[21]

Misskey does not officially provide an app for iOS or Android, and recommends users to add their instance's included progressive web app to their mobile devices.[22]

Forks

Misskey's open source nature has led to the development of a number of forks:

  • Firefish (formerly Calckey) has been developed by ThatOneCalculator since 2022. Firefish includes enhanced compatibility with the Mastodon API.[23] Further development of the project is discontinued due to a lack of maintainers and code quality issues, as well as the sudden disappearance of ThatOneCalculator.[24]
  • Foundkey was primarily developed by Johann155, a contributor to Misskey. The fork was started as a result of various language barriers in regards to Misskey's development, as a result of an overwhelming amount of it being conducted exclusively in Japanese. Development is currently paused, and it has been advised to not use Foundkey with more than 20 users.[25]
  • Iceshrimp, forked from Firefish in 2023. The project is currently in the process of being rewritten into C# and .NET.[26]
  • Sharkey, developed by Transfem.org. Main features include note editing, local-only notes and compatibility with the Mastodon API.[27]
  • Catodon, a fork of Misskey. Main singular features include federated forums and blogs, RSS feed timeline, customizable timelines, and native Mastodon API compatibility.[28]

See also

References and notes

  1. ↑ "Misskey latest (stable) release". https://github.com/misskey-dev/misskey/releases/latest. 
  2. ↑ "Japan's Twitter-like Misskey to form company in bid for survival" (in en-GB). https://asia.nikkei.com/Business/Technology/Japan-s-Twitter-like-Misskey-to-form-company-in-bid-for-survival. 
  3. ↑ 3.0 3.1 3.2 "次世代Twitterと話題「Misskey」使い方 インスタンス？ 分散型SNS？ その基本を解説" (in ja). 2023-07-02. https://kai-you.net/article/86094. 
  4. ↑ "Twitterにさよなら SNSの自治求めMisskeyに移民 - 日本経済新聞". 2023-07-16. https://www.nikkei.com/article/DGXZQOCB034P20T00C23A7000000/. 
  5. ↑ 株式会社インプレス (2022-11-28). "[みんなのケータイ次のTwitterはMastdonかMisskeyか!? Fediverse（フェディバース）な世界へ飛び込んでみる"] (in ja). https://k-tai.watch.impress.co.jp/docs/column/minna/1458691.html. 
  6. ↑ "Misskeyについて" (in ja). https://misskey-hub.net/ja/docs/about-misskey/. Retrieved 2024-03-19. 
  7. ↑ "About Misskey" (in en-US). https://misskey-hub.net/en/docs/about-misskey//. 
  8. ↑ 白石倖介 (2023-09-09). "目指すのは「オタク向けmixi」「平成のインターネット」……？ ユーザー爆増の純日本産SNS『Misskey』開発・運営インタビュー" (in ja). リアルサウンド. https://realsound.jp/tech/2023/09/post-1422348.html. 
  9. ↑ 松尾公也. "ActivityPub対応国産SNS「Misskey」、LTLも実装" (in ja). ITmedia. https://www.itmedia.co.jp/news/articles/1804/17/news124.html. Retrieved 2020-03-01. 
  10. ↑ "ActivityPub対応国産SNS「Misskey」、LTLも実装". https://www.itmedia.co.jp/news/articles/1804/17/news124.html. Retrieved 2023-07-20. 
  11. ↑ "'Post-Twitter' decentralized social media struggles for way forward" (in en). https://asia.nikkei.com/business/technology/post-twitter-decentralized-social-media-struggles-for-way-forward. 
  12. ↑ リアルサウンドテック編集部 (2024-03-01). "クリエイターが"移住先"として注目するSNS Misskey.ioがSkebとスポンサー契約を締結" (in ja). リアルサウンド. https://realsound.jp/tech/2024/03/post-1588312.html. 
  13. ↑ Satoh, Ryohtaroh (2023-08-08). "Japan's Twitter-like Misskey to form company in bid for survival" (in en-GB). https://asia.nikkei.com/Business/Technology/Japan-s-Twitter-like-Misskey-to-form-company-in-bid-for-survival. 
  14. ↑ "Twitterにさよなら SNSの自治求めMisskeyに移民" (in ja). 2023-07-16. https://www.nikkei.com/article/DGXZQOCB034P20T00C23A7000000/. 
  15. ↑ "Twitterからの移住者か、「Misskey.io」登録者20万人超え 1日で4万人増も一筋縄ではいかず" (in ja). https://www.itmedia.co.jp/news/articles/2307/04/news108.html. 
  16. ↑ "Skebが分散型SNS「Misskey」のスポンサーに！" (in ja). 2023-07-14. https://news.mynavi.jp/article/20230714-2727666/. 
  17. ↑ Perez, Sarah (2024-02-20). "Spam attack on Twitter/X rival Mastodon highlights 'fediverse' vulnerabilities" (in en-US). https://techcrunch.com/2024/02/20/spam-attack-on-twitter-x-rival-mastodon-highlights-fediverse-vulnerabilities/. 
  18. ↑ https://misskey.io/notes/af5udbqosfca05lo
  19. ↑ https://misskey.io/notes/agfyr41ky95y01mw
  20. ↑ "LICENSE (misskey-dev/misskey)". https://github.com/misskey-dev/misskey/blob/develop/LICENSE. 
  21. ↑ 大和哲 (2022-11-28). "次のTwitterはMastdonかMisskeyか!? Fediverse（フェディバース）な世界へ飛び込んでみる" (in ja). https://k-tai.watch.impress.co.jp/docs/column/minna/1458691.html. 
  22. ↑ "About Misskey" (in en). https://misskey-hub.net/en/docs/about-misskey/#are-there-any-apps-for-ios-android-available. Retrieved 2026-09-11. 
  23. ↑ online, heise (2023-07-04). "Everything Mastodon lacks: Firefish in Fediverse with tens additional functions" (in de). https://www.heise.de/hintergrund/Everything-Mastodon-lacks-Calckey-in-Fediverse-with-tens-of-additional-functions-9206848.html. 
  24. ↑ "Firefish (@firefish)". https://info.firefish.dev/notes/9xsukr38m3komd63. 
  25. ↑ "Fediverse-Serie - Foundkey: nicht nur Microblogging" (in de). 2023-04-20. https://gnulinux.ch/fediverse-serie-foundkey-nicht-nur-microblogging. 
  26. ↑ iceshrimp. "Iceshrimp.NET" (in en-US). https://iceshrimp.dev/iceshrimp/Iceshrimp.NET. 
  27. ↑ "TransFem.org / Sharkey · GitLab" (in en). https://activitypub.software/TransFem-org/Sharkey. 
  28. ↑ "Catodon - CodeFloe". https://codefloe.com/catodon/catodon. 
  1. ↑ If the exact release date isn't shown on GitHub, check the archived version of the page.
  2. ↑ Japanese: ミスキー, romanized: Misukī

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