Syntax highlighting is a feature to display source code in different colors and fonts to indicate the structure to readers.

Wikipedia:Syntax highlighting or WP:SYNTAX may refer to:

Toggling wikitext editor syntax highlighter in the 2010 editor (top) and 2017 editor (bottom).

• mw:Help:Extension:CodeMirror
  • Can be turned on or off using the pencil icon in the editor (see image)
  • A more advanced version including code folding and autocompletion can be enabled at Special:Preferences#mw-prefsection-betafeatures -> Improved Syntax Highlighting
• Extension:CodeEditor – syntax highlighting for JavaScript, CSS, and modules available on a button () at the left of the toolbar for these page types.
• User:Remember the dot/Syntax highlighter – documentation for the wikitext syntax highlighter available as "Syntax highlighter" under Preferences → Gadgets → ^(S) Syntax highlighter: Alternative to the default coloring of wiki syntax in the edit box (works best in Firefox and works almost all of the time in Chrome and Opera).
• User:Cacycle/wikEd – an editor which includes syntax highlighting, available as "wikEd" under Preferences → Gadgets → ^(U) wikEd: alternative full-featured integrated text editor for Firefox, Safari, and Google Chrome (documentation).
• Help:Text editor support – how to use an external text editor (most of which perform syntax highlighting) to edit Wikipedia pages.

• Wikipedia:Manual of Style/Computer science § Code samples – text formatting style guideline for sample code and markup in Wikipedia articles intended for readers.
• Extension:SyntaxHighlight – documentation for the <syntaxhighlight> markup that can be used to provide well-formatted code examples.
  • Category:Pages with syntax highlighting errors – tracking category for pages using this feature incorrectly.

• Help:Wikitext – basic info on the MediaWiki markup syntax used in Wikipedia's pages ("wiki-markup")
• Wikipedia:Manual of Style – Wikipedia's internal style manual for all English Wikipedia articles, including detail on layouts and formatting.