An interwikimedia link is a link from a Wikimedia Foundation project to another one (e.g., from Wikipedia to Wiktionary).

[edit] Shortcuts and templates to Wikimedia sister projects

Some links don't work as expected within the same project, e.g., meta:Test on Meta itself would mean m:Meta:Test, a different page. Outside of Wikimedia sister projects, only metawikipedia:Test might work for m:Test.

Links to foreign-language Wikiprojects can be made by prefixing the language code: [[:de:s:]] will link to the German-language Wikisource, [[:fr:wikt:]] to the French-language Wiktionary, etc.

[edit] Suppressing the prefix

The pipe trick:

Add | at the end of the link, like this: [[s:test|]], which will automatically be expanded to [[s:test|test]] on saving.

[edit] Special versions of Wikipedia

There are also two special versions of Wikipedia, nostalgia and test. Nostalgia is a static copy of Wikipedia, as it was in 2001 and can be linked to by using [[nost:]]. Test is a version of Wikipedia, for edit and software testing and can be linked to by using [[testWiki:]].

[edit] Examples

 [[:en:Main Page]] [[:de:Hauptseite]] 

 [[commons:Main Page]] 

 [[commons:category:Wikimedia]] 

 [[wikibooks:Main Page|]] 

 [[wikt:de:Rechner]] 

 [[wiktionary:de:Rechner|]] 

As demonstrated above, by the double prefixes (for example [[wikt:de:Main Page]]), links may cumulate, thus enabling links that are not possible with a single prefix, for example, linking a word in the English Wikipedia to a term in the German Wiktionary.

[edit] See also

• Wikipedia:Wikimedia sister projects, guideline for using Wikipedia's sister projects
• Wikipedia:Template messages/Sister projects, templates for linking between the various Wikimedia sister projects
• Help:Interlanguage links, describes how to link between differing foreign language Wikipedias
• Help:Contents/Links, table of contents for help pages about links and references
• mw:Help:Interwiki linking, help page from MediaWiki
• Meta-Wiki content:
  • m:Help:Interwiki linking
  • m:Interwiki map, list of WMF and non-WMF mappings
• commons:Commons:First steps/Reuse, instructions on linking a file from Commons to Wikipedia