There are five types of links in MediaWiki:

1. Internal links to other pages in the wiki
2. External links to other websites
3. External links to internal pages in the wiki
4. Interwiki links to other websites registered to the wiki in advance
5. Interlanguage links to other websites registered as other language versions of the wiki

In this document we will discuss the first two. Further documentation can be found here.

To add an internal link, enclose the name of the page you want to link to in double square brackets. When you save the page, you'll see the new link pointing to your page. If the page exists already it is displayed in blue, if it does not, in red. Selflinks to the current page are not transformed in URLs but displayed in bold. (If you really want to link to the current page, use an anchor (see below), or [[#top|current page]] which always links to the top.)

The first letter of the target page is automatically capitalized, unless otherwise set by the admins, and spaces are represented as underscores (typing an underscore in the link will have a similar effect as typing a space, but is not recommended, since the underscore will also be shown in the text).

Description You type You get
[[Main Page]]
Main Page
[[Main Page|different text]]
different text
Pipe trick
[[Help:Contents|]]

[[User:John Doe|]]

[[Extension:DynamicPageList (Wikimedia)|]]

[[Extension:DynamicPageList (third-party)|]]

The pipe trick quickly makes shorter link text, but could be confusing in circumstances like the DynamicPageList link examples.
Contents
[[Help]]s

[[Help]]ing

[[Help]]ers

[[Help]]almostanylettersyoulikehere

[[Help]]<nowiki />ful advice



GPLv3

Redirect
#REDIRECT [[Main Page]]
Main Page
[[#See also]]
Section headings and the top of the page are automatically anchored.
Internal link to an anchor from different text
[[#See also|different text]]
different text
<div id="NameOfAnchorHere">optional text</div>
Omit the "optional text" for invisible anchor.
optional text
Internal link to an anchor at another page
[[Help:Images#Supported media types for images]]
Help:Images#Supported media types for images
[[/example]]

Shortcut for [[Help:Links/example|/example]].

/example
[[/example/]]

Shortcut for [[Help:Links/example|example]].

example
Internal link to a category page
[[:Category:Help]]
Category:Help
Internal link to an image or a file of other types
[[media:example.jpg]]

[[media:example.pdf]]
[[Special:MyPage]]
[[Special:MyTalk]]