Takashi Fujisaki

<p>Syntax Highlight Nano adds beautiful, customizable syntax highlighting to WordPress’s core code block.<br />
It integrates seamlessly with the Gutenberg editor, providing a consistent look and feel between the editor and the frontend.<br />
Because it extends the existing “Code” block, there is no need for a separate custom block or switching between different block types.<br />
This plugin is built on top of <strong>highlight.js</strong>, ensuring accurate and performant syntax highlighting for a wide variety of languages.</p>
<h4>Features</h4>
<ul>
<li><strong>Automatic language detection</strong>: Intelligently detects the programming language of your code.</li>
<li><strong>Customizable header</strong>: Optionally display a header above the code block with a filename or language name.</li>
<li><strong>Line numbers</strong>: Toggle line numbers on or off to improve code readability.</li>
<li><strong>Copy to clipboard button</strong>: A convenient button appears on hover, allowing users to copy the code with a single click.</li>
<li><strong>Lightweight and performant</strong>: Uses highlight.js for efficient, optimized syntax highlighting.</li>
<li><strong>WordPress best practices</strong>: Built following WordPress development standards.</li>
</ul>
<h4>How to Use</h4>
<ol>
<li>Install and activate the plugin.</li>
<li>In the WordPress editor, add a standard “Code” block.</li>
<li>Enter your code.</li>
<li>In the block settings sidebar, you can:
<ul>
<li>Select a programming language (or leave it for automatic detection).</li>
<li>Add a filename.</li>
<li>Toggle header visibility.</li>
<li>Toggle line number visibility.</li>
</ul>
</li>
<li>The code block will be automatically highlighted on the frontend.</li>
</ol>
<h3>Privacy</h3>
<p>This plugin does not collect any personal data. It does not set cookies or connect to external services. All processing happens locally on your server and in the user’s browser.</p>
<h3>Credits</h3>
<p>This plugin uses highlight.js (BSD 3‑Clause License).<br />
Copyright (c) 2006, Ivan Sagalaev<br />
https://github.com/highlightjs/highlight.js</p>
<h3>Support</h3>
<p>For support, feature requests, and bug reports, please visit:<br />
https://github.com/takashifujisaki/syntax-highlight-nano/issues</p>


Syntax Highlight Nano

Adds modern syntax highlighting to WordPress's standard code block using the robust highlight.js library.

PiotrPress

Clearcode

<p>The CC-Syntax-Highlight plugin supports syntax highlighting of Posts, Pages, and any public Custom Post Types.<br />
It uses <a href="https://highlightjs.org/" rel="nofollow ugc">highlight.js</a> or <a href="https://github.com/google/code-prettify" rel="nofollow ugc">google-code-prettify</a> libraries.<br />
Additionally it can use the <a href="https://clipboardjs.com/" rel="nofollow ugc">clipboard.js</a> library to add a button that copies text to the clipboard and <a href="https://github.com/wcoder/highlightjs-line-numbers.js/" rel="nofollow ugc">highlightjs-line-numbers.js</a> plugin to add line numbers.<br />
It is delivered with support for shortcode (default [code] – you can change it on the settings page) which automatically converts all special characters to HTML entities.<br />
This plugin is compatible with Multisite WordPress installations.</p>
<h4>How does it work?</h4>
<ol>
<li>Go to the ‘Settings > Syntax Highlight’ page, select your preferred options and save them.</li>
<li>Simply add the source code to your post (or other selected public Custom Post Type) wrapped with:<br />
<pre><code>Your source code</code></pre><br />
or if you would like to automatically convert all special characters to HTML entities, use shortcode wrapper instead (default [code] – you can change it on the settings page):<br />
<pre>[code]Your source code[/code]</pre></li>
</ol>
<p><em>Plugin’s js scripts and css styles files only load if the source code occurs on displaying page.</em></p>


CC-Syntax-Highlight

This plugin allows you very simply syntax highlight source code in your content using highlight.js or google-code-prettify libraries.

Syntax Highlight Nano vs CC-Syntax-Highlight