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This page is a translated version of the page Help:Unified login and the translation is 64% complete.

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ヘルプページ 統一ログイン
統一ログインとはウィキメディア財団プロジェクトの大半で単一のログイン情報が使えるようになる仕組みのことです。これにより利用者は、1度登録したあとは、ウィキメディア全体をとおして一貫性のあるアイデンティティを保つことができます。その他の利点として、この仕組みを使うとなりすましの危険性をなくすことができ、ひとつひとつログインする手間をかけずに多数のプロジェクトを訪問することができます。すでにアカウントをもっているプロジェクトで Special:MergeAccount を開き、メッセージに従って行くと、統一ログイン情報を作成できます。



The ウィキメディア財団 operates a family of editable online resource communities. Users were traditionally required to create a separate login account on each of these projects, in each language they appear in. This adds an extra burden for contributors becoming involved in multiple projects, particularly as multimedia integration with Wikimedia Commons becomes more essential and as interwiki links are now managed by Wikidata.




At Special:MergeAccount, you will be asked to enter your password for verification. Then, any wikis with the same authenticated e-mail address and password as the home wiki will be unified. You can enter the passwords of additional accounts if any are listed.




Registering a username on any public Wikimedia wiki automatically reserves that name on all the others; this means different users can no longer register the same account on different wikis. Users only need to set and confirm their email address in one account. Changing the password in any wiki changes it in all wikis accordingly. Special:UserLogin now logs the user in to every unified wiki simultaneously, and navigating away from the login page before it is fully loaded may result in incomplete login (i.e. users may not log in to all wikis successfully).



  • Some things are still local:
    • User rights are mostly local, which means that administrators will not have administrator access everywhere. Global groups such as global rollback, global sysop, global edit-interface and global IP block exemption can be requested at Steward requests/Global permissions.
    • User preferences are local, although the email address only needs to be set and confirmed in one place. You can continue to have different preferences on different sites. It may be possible in the future to set global preferences.[2]
    • Notification when you receive a new message is still local; you will only see the "new messages" notification for the site you're looking at. This may change in the future.[3][4]
  • Users can still have differently named accounts on two sites; however, these accounts will not be linked for unified login.
  • The unified login system is only available for the Wikimedia Foundation open wikis; sites which run on the MediaWiki software but are not operated by the Foundation will continue to have separate account systems, even if they installed Extension:CentralAuth, which is responsible for the unified login system.



Because registration has for a long time been separate for each wiki, there are many user names that belong to different people on different projects. The new system only allows one user per name, so there are some cases where accounts will need to be renamed. This must be done manually by a steward (see Steward requests/Username changes).





初期の議論はSingle loginで見ることができます。

Brion Vibber discussed how this might work in the December 2005 Berlin roundup, uploaded implementation notes to the code base in April 2006, and it was the subject of a presentation at Wikimania 2006.

Brion announced a successful migration test in November 2006. Data collection took two hours and automatic merging took five hours. 4,457,075 primary accounts were confirmed, with 578,128 secondary accounts merged automatically based on matching email addresses or by cannibalizing unused accounts. 134,242 secondary accounts will need to be merged with user interaction (71,741 unique user names have accounts left unmerged).

Unified login was implemented for administrators only in March 2008, and Steward requests/SUL requests (now a redirect to SRUC) was created to resolve conflicts in unified logins. Unified login was enabled for all users on May 27, 2008 on an opt-in basis. On August 22, 2008, CentralAuth was set to make a global account for all users registered after this date. The change removed the need for manual merging of accounts.

On 30 April 2013, the Wikimedia Foundation announced that the unified login system would be changing so that there would be only unique global accounts with the same username across all Wikimedia projects; there would be no two users sharing the same username on different wikis. With SUL finalization, all non-global accounts will be converted to global accounts where possible and if there is clash in the username, they will be renamed to have a "~" and the wiki name will be appended to the username. For example, an account with the username "Example" on the Dutch Wiktionary, which will be renamed, would become "Example~nlwiktionary". Initially, it was announced to take place in May 2013. However, this was delayed to August 2013, and in August 2013, this expectation was removed.

As part of this process, GlobalRenameUser function was introduced in July 2014 and the local rename user tool was removed from bureaucrats' toolset in September 2014.



Yes. You can request renames at SRUC, where a steward or a global renamer will look into your request. See global rename for details. In the future, it may be possible to request renames with a special page that will allow users to request a rename from any wiki without making a request on SRUC.


No, but this might be possible in future versions.[5] Note that usernames on most individual projects can preemptively be renamed.


First, note that the existence of the other account does not necessarily stop you from getting the global name. However, if an account with your chosen name which is not controlled by you has more edits, or certain group membership such as sysop or bureaucrat (check here), you may not be the one with the superior claim on this username. If this is the case, you will probably have to ask them to rename, or you may have to rename yourself.






No, if the wiki has account creation restricted then it is not possible to be merged at this time. The reason being, that one could create an account on an open wiki and then merge it into a restricted wiki which would allow the user access to the restricted one.






  1. 管理者(Sysop)やビューロクラットの方が編集回数よりも優先されます。衝突が生じている場合、どれがグローバルアカウント用のホームウィキかを決めることであってどのローカルアカウントがグローバルな利用者名を取得できるかを決めることではありません。
  2. Bug 14950
  3. Bug 1066
  4. Bug 65661

ローカル: ブロックされた利用者 – 未登録利用者 – 新規登録済み利用者 – 登録済み利用者 – 自動巡回者 – 自動査読者 – ボット – 管理者 – ビューロクラット – オーバーサイト – チェックユーザー – IP ブロック適用除外 – インポート担当者 – 中央管理通知管理者 – アップロード者
グローバル: ロックされたアカウント – 統一済み利用者 – ボット – ロールバッカー – 不正利用フィルター編集者 – インターフェース編集者 – IP ブロック適用除外 – 新ウィキインポート担当者 – 管理者 – オンブズマン – 創設者 – スタッフ – WMF researcher – システム管理者 – スチュワード