This plugin hasn’t been tested with the latest 3 major releases of WordPress. It may no longer be maintained or supported and may have compatibility issues when used with more recent versions of WordPress.

Prettify GC Syntax Highlighter


This plugin has prettify.js copied directly from google-code source browser. So your code will look exactly like it does on google-code.
CSS is slightly modified to embolden keywords and types.


See prettify.js for license details (Apache License 2.0). Other files are available under GPLv2.


<pre class="prettyprint">
// Put your code here.

Or with shortcode:

  // Put your code here.

Making Code HTML Safe

The plugin automatically makes highlighted code html-safe:

<pre class="prettyprint">
Anything that goes here will be quoted to appear on the page as-is.
For example: <head></head><body></body>

To avoid quoting your code, add dontquote as the first class.

<pre class="dontquote prettyprint">
Remember to quote manually.
For example: &lt;head&gt;&lt;/head&gt;&lt;body&gt;&lt;/body&gt;

Line Numbering

Line numbdering can be enabled as follows:

<pre class="prettyprint linenums">
// Put your code here.

If you want to start with a line number 42, you can do the following:

<pre class="prettyprint linenums:42">
// Put your code here.

Highlighting Lines

When line numbering is enabled you can highlight one or several lines of code using the highlight class:

<pre class="prettyprint lang-YOURLANG linenums highlight:2,4">
// line 2
// line 3
// line 4

Alternatively you can highlight one or several code segments:

<pre class="prettyprint lang-YOURLANG linenums highlight:1-3,5-6">
// line 2
// line 3
// line 4
// line 5

Note: This feature is not available when line numbering is disabled.

Specifying Language

Most of the time the highlighter will do a good job guessing how to highlight the code. However, to achieve the best result, you should specify the language:

<pre class="prettyprint lang-YOURLANG">
// Put your code here.

Replace YOURLANG with one of the following:

  • aea
  • agc
  • apollo
  • bsh
  • c
  • cc
  • cl
  • cpp
  • cs
  • csh
  • css-str
  • cv
  • cxx
  • cyc
  • default-markup
  • el
  • fs
  • go
  • hs
  • htm
  • html
  • java
  • js
  • json
  • lisp
  • lua
  • m
  • ml
  • mxml
  • perl
  • pl
  • pm
  • proto
  • py
  • rb
  • scala
  • scm
  • sh
  • sql
  • vhd
  • vhdl
  • wiki
  • xhtml
  • xml
  • xsl
  • yaml
  • yml


Here is a quick example. All the parameters are optional.

  // Put your code here.

Html quoting can be disabled as follows:

  // Put your code here.

The contents of shortcodes is auto-formatted by WP. As a result <p> and <br/> tags along
with some formatting will be lost. If you need to preseve the original formatting use
html notation instead of the shortcode.

Please Support

If you like Prettify GC Syntax Highlighter plugin, please donate a minute of your time and vote for it. Thank you!


  • How to use and a short example.
  • A larger example with line numbers.


You can use the WordPress plugin installer:

  1. Go to: WpAdim -> Plugins -> Add New -> Upload.
  2. Simply upload the zip file and then click ‘Activate’.

Or you can install the plugin manually:

  1. Upload the content of the zip file to the /wp-content/plugins/ directory.
  2. Then activate the plugin through the ‘Plugins’ menu in WordPress.


There are no reviews for this plugin.

Contributors & Developers

“Prettify GC Syntax Highlighter” is open source software. The following people have contributed to this plugin.




  • Fixed “wp_register_style was called incorrectly” warnings.


  • Fixed line highlight indices when using linenums.
  • Added shortcodes.


  • Added an option to highlight one or serveral lines of code.


  • Updated the language list.
  • Improved documentation.


  • Improved htlm-friendly quote filter.
  • Added line numbering support.
  • Added overflow support.


  • The first public version.