OSDN

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Web-hosted software development forge service including source code repository management

title: "OSDN" type: doc version: 1 created: 2026-02-28 author: "Wikipedia contributors" status: active scope: public tags: ["free-software-websites", "geeknet", "internet-properties-established-in-2002", "open-source-software-hosting-facilities"] description: "Web-hosted software development forge service including source code repository management" topic_path: "general/free-software-websites" source: "https://en.wikipedia.org/wiki/OSDN" license: "CC BY-SA 4.0" wikipedia_page_id: 0 wikipedia_revision_id: 0

::summary Web-hosted software development forge service including source code repository management ::

::data[format=table title="Infobox website"]

FieldValue
nameOSDN
logoOSDN logo real-rgb.svg
url
commercialYes
typeCollaborative development environment
registrationOptional
ownerOSChina
author
launch_date
current_statusDefunct
::

| name = OSDN | logo = OSDN logo real-rgb.svg | screenshot = | caption = | url = | commercial = Yes | type = Collaborative development environment | registration = Optional | owner = OSChina | author = | alexa = | launch_date = | current_status = Defunct | revenue = ::figure[src="https://upload.wikimedia.org/wikipedia/commons/f/f2/Sfjp-char-lang-h250.png" caption="access-date=2016-10-28}}"] ::

OSDN (formerly SourceForge.JP) was a web-based collaborative development environment for open-source software projects. It provided source code repositories and web hosting services. With features similar to SourceForge, it acted as a centralized location for open-source software developers.

The OSDN repository hosted more than 5,000 projects and more than 50,000 registered users. Registered software used to be mostly specialized for Japanese use, such as input method systems, fonts, and so on, but also included applications like Cabos, TeraTerm, and Shiira. Also, since the renewal of the brand name to OSDN, some projects that used to be developed on SourceForge moved to OSDN, such as MinGW, TortoiseSVN, Android-x86, and Clonezilla.

History

SourceForge.JP was started by VA Linux Systems (latterly SourceForge, Inc.) and its subsidiary VA Linux Systems Japan on April 18, 2002.{{cite web |url=http://osdn.co.jp/article.pl?sid=02/04/18/0124257 |title=世界最大のオープンソース・ソフトウェア開発サイト |publisher= |language=ja |date=2002-04-18}}{{cite web |author=ITmedia Enterprise |url=http://www.itmedia.co.jp/enterprise/0203/19/02031914.html |title=VA Linux，オープンソースソフト開発サイト「SourceForge.jp」を運用開始 |language=ja |publisher= |date=2002-03-19}} OSDN K.K. spun off from VA Linux Systems Japan in August 2007.{{cite web |url=http://osdn.co.jp/article.pl?sid=07/09/01/2011251 |title=ユーザの皆様へのOSDN株式会社の設立についてのご説明 |publisher= |language=ja |date=2007-09-01}}{{cite web |author=ITmedia Enterprise |url=http://www.itmedia.co.jp/enterprise/articles/0709/03/news078.html |title=Slashdot Japanはどうなる？ OSDN事業部がサンブリッジの100％子会社に |language=ja |publisher= |date=2007-09-03}} As of June 2009, OSDN K.K. was operating SourceForge.JP.

On May 11, 2015, the site was renamed from "SourceForge.JP" to "OSDN".{{cite web |author=impress |url=http://internet.watch.impress.co.jp/docs/news/20150408_696843.html |title=「Slashdot Japan」が「スラド」に、「SourceForge.JP」が「OSDN」に名称変更 |language=ja |publisher= |date=2015-04-08}} In the same month that OSDN changed the site name, SourceForge caused two controversies: DevShare adware and project hijacking. In contrast, OSDN refuses adware bundling and project hijacking.{{cite web |author=Windows Forest|url=http://www.forest.impress.co.jp/docs/news/20150601_704846.html |title=米SourceForgeが開発者に無断で「GIMP for Windows」へソフトをバンドル |language=ja |publisher= |date=2015-06-01}} For that reason, the changing of the site name to OSDN is perceived to have been done based on criticism of and adverse reactions to SourceForge's monetization.

On February 26, 2020, it was announced on the site that OSDN was being transferred to Appirits, Inc., a Japanese software company.

Open Source China (OSChina) announced on 24 July 2023 that it had acquired OSDN in 2022. The site had reliability problems almost immediately after this announcement, and there was an effort by SourceForge (the original, American-based site) to recruit projects that might choose to leave OSDN, especially those using SVN, which would be unsupported on GitHub. Many projects left OSDN, including Vim and TeraTerm.

ITmedia NEWS reported on January 22, 2024, that OSDN had announced they would shut down the associated Slashdot Japan-successor site (Surado) at the end of January 2024. However, articles in ITmedia NEWS and Surado at the end of January reported that the closure of both sites had been cancelled, and OSChina now hoped to keep them in operation while seeking acquirers to take them over. Nonetheless, in March 2025, Surado (formerly Slashdot Japan) announced that OSDN had decided to close OSDN along with Surado at the end of March. On April 9, 2025, the OSDN.net website is no longer reachable to the public.

Features

OSDN provided revision control systems such as CVS, SVN, Git, Mercurial, and every feature in SourceForge. What made OSDN different from SourceForge was the bug tracking system and the wiki system. On OSDN, these were very Trac-like systems.

References

References

  1. "SourceForge.JP no Kōshiki Kyarakutā".
  2. "OSDN no Rogo to Kōshiki Kyarakutā".
  3. "OSDN Logo and Official Character".
  4. "Project ranking overview".
  5. Marshall, Keith. (2018-01-21). "MinGW.org Project Hosting".
  6. (2015-05-01). "News: サイト名称変更に伴うURL、ドメインの変更についてのお知らせ – OSDN Admin".
  7. (2015-06-01). "News: OSDN's Current Policy Regarding Adwares and Irrelevant ads – OSDN Docs".
  8. impress. (9 June 2015). "SourceForgeとGIMPのバンドル論争". {{label.
  9. Shuji Saito. ""OSDN Business is Transferred to Appirits".
  10. Open Source China. (2023-07-24). "开源中国收购日本老牌开源社区 OSDN".
  11. Matthew Skala. (2024-02-07). "What's up with OSDN?". Tsukurimashou Project.
  12. impress. (2023-08-02). "接続不調が続く「OSDN」、米「SourceForge」がプロジェクトの勧誘に乗り出す". {{label.
  13. SourceForge Community Team. (2023-07-31). "Welcoming OSDN Projects to SourceForge".
  14. Christian Brabandt. (2023-09-21). "Moving the Vim Homepage (vim-announce mailing list)". Google Groups.
  15. ITmedia NEWS. (2024-01-22). "スラド終了 「スラッシュドットジャパン」から23年の歴史に幕".
  16. headless. (2024-01-31). "スラドとOSDN、閉鎖せず受け入れ先募集へ". Surado.
  17. ITmedia NEWS. (2024-02-01). "「スラド」閉鎖を撤回 受け入れ先を募集中".
  18. (March 14, 2025). "OSCHINA、スラドと OSDN の受け入れ先募集を打ち切ってサービス終了へ".
  19. (March 17, 2025). "「スラド」と「OSDN」は結局終了へ ～サービス終了予定は3月31日". ITmedia NEWS.
  20. https://www.isitdownrightnow.com/osdn.net.html
  21. "Cabos Project Tickets".

::callout[type=info title="Wikipedia Source"] This article was imported from Wikipedia and is available under the Creative Commons Attribution-ShareAlike 4.0 License. Content has been adapted to SurfDoc format. Original contributors can be found on the article history page. ::

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