Wikia vs. XWiki vs. Wikidot vs. TWiki vs. DokuWiki

XWiki supports 16+ input syntaxes (e.g. confluence, twiki, docbook, mediawiki, xwiki, markdown, etc), see http://rendering.xwiki.org/xwiki/bin/view/Main/WebHome#HSupportedSyntaxes for details.

The syntax documented below is XWiki Syntax 2.1 (http://platform.xwiki.org/xwiki/bin/view/Main/XWikiSyntax).

[[wiki syntax here>>Space.Page]]
[[Space.Page]]
(Space is optional and is the current space if not specified)

[[[page-name]]] or
[[[page-name|anchor]]]

WikiWord autolink
Otherweb.WikiWord
[[Spaced text]]
[[WikiWord][label]]

[[a Link]]
[[namespace:link]]
[[link|With a Title]]

[[wiki syntax here>>http://www.xwiki.com]]
http://www.xwiki.com

http://www.wikimatrix.org or 
[http://www.wikimatrix.org WikiMatrix]

http://twiki.org/ autolink
[[http://twiki.org/][label]]

[[http://example.com]]
[[http://example.com|With a Title]]

= Headline
== Subheadline
=== Sub-subheadline
==== etc..

+++ headline level 3

---+ Level 1
---++ Level 2
---+++ Level 3
---++++ Level 4
---+++++ Level 5
---++++++ Level 6

====== Level 1 ======
===== Level 2 =====
==== Level 3 ====
=== Level 4 ===
== Level 5 ==

**bold**

**bold text**

*bold*

**bold**

//Italics//

//italic text//

_italic_

//italics//

__underline__

__underlined text__

<u>underline</u>

__underlined__

##monospace##

{{monospaced text}}

=monospaced text= and
<verbatim>
multi line text
</verbatim>

''monospace''

--Strike--

--strikethrough text--

<strike>strikethrough</strike>

<del>strikethrough</del>

^^superscript^^

^^superscript^^

<sup>superscript</sup>

<sup>superscript</sup>

,,subscript,,

,,subscript,,

<sub>subscript</sub>

<sub>subscript</sub>

image:img.png
image:Space.Page@img.png
[[image:img.png||width="25" height="25"]]
image:http://some/url/img.png

Starting with the xwiki/2.1 syntax, also:
image:icon:cancel

[[image src="..."]]

%ATTACHURL%/image.png
http://any.domain/image.png

{{local.jpg}}
{{http://foo.bar/baz.jpg}}

(% style="... css here..." %)Text

= Centered line

| left |   center   |   right |
or HTML
or CSS

Plugin

Non-semantic text indentation through styling:

(% style="... css here..." %)multi line text

Quotes:

> This is a quoted text

> First level of indentation
>> Second level of indentation.

<blockquote>
multi line text
</blockquote>

N/A

* List
** list
*** list

* element 1
* element 2

* Item 1
* Item 1.1
* Item 2

* item 1
* item 1.1
* item 2

1. Item 1
11. Item 2
111. Item 3
1. Item 4

# element 1
# element 1

1. Item 1
a. Item 1.a
1. Item 2

- item 1
- item 1.1
- item 2

; term
: definition

: item : description

$ Term: Definition

Plugin

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