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.

snowbedding

<p><a href="https://www.tiptinker.com/easy-syntax-highlighter-wordpress-plugin/" rel="nofollow ugc">Easy Syntax Highlighter</a> is a powerful WordPress plugin that helps improve your website’s code presentation by providing beautiful syntax highlighting. Using the latest Highlight.js library, it supports over 20 programming languages with 80+ color themes, copy-to-clipboard functionality, and seamless integration with both classic and Gutenberg editors.</p>
<h3>Features</h3>
<ul>
<li><strong>Modern Highlight.js Engine</strong>: Uses the latest Highlight.js library for fast, accurate syntax highlighting</li>
<li><strong>80+ Themes Included</strong>: Over 80 themes for both light and dark modes, all stored locally for offline compatibility</li>
<li><strong>Unlimited Language Support</strong>: Supports 20+ programming languages including JavaScript, PHP, Python, CSS, HTML, SQL, Bash, and more</li>
<li><strong>Modern JavaScript</strong>: Promise-based loading with proper error handling and performance optimizations</li>
<li><strong>Performance Optimized</strong>: Smart asset loading—only loads when code blocks are present on the page</li>
<li><strong>Security Focused</strong>: Proper input sanitization and output escaping</li>
<li><strong>Admin Interface</strong>: Clean, modern settings page with visual theme selector integrated with WordPress admin</li>
<li><strong>Localization Ready</strong>: Translation-ready with proper text domains</li>
<li><strong>Backward Compatible</strong>: Automatic migration from old plugin versions</li>
</ul>
<h3>How to Use</h3>
<ol>
<li><strong>Gutenberg Block Editor</strong>: Use the default WordPress “Code” block. The plugin automatically detects the language and highlights it. There is no language setting in the sidebar; detection is automatic. If you need to force a language, edit the block as HTML and add a class to the <code><code></code> element (e.g., <code><code class="language-php"></code>).</li>
<li><strong>Classic Editor</strong>: Use the TinyMCE button (code icon) with the modal dialog for easy code insertion.</li>
<li><strong>Copy to Clipboard</strong>: Double-click any code block to instantly copy its content with visual feedback.</li>
</ol>
<h3>Use Cases</h3>
<ul>
<li>Technical blogs and tutorials</li>
<li>Documentation websites</li>
<li>Programming courses and educational content</li>
<li>Developer portfolios</li>
<li>API documentation</li>
<li>Code examples and snippets</li>
</ul>
<h3>Support</h3>
<p>For support, bug reports, or feature requests, please visit: <a href="https://github.com/tiptinker/easy-syntax-highlighter" rel="nofollow ugc">Github</a></p>
<h3>Contributing</h3>
<p>Contributions are welcome! Please feel free to submit pull requests or open issues on GitHub.</p>
<h3>License</h3>
<p>This plugin is licensed under the GPLv2 or later.<br />
License URI: https://www.gnu.org/licenses/gpl-2.0.html</p>


Easy Syntax Highlighter

Modern, lightweight syntax highlighter for WordPress using Highlight.js

Syntax Highlight Nano vs Easy Syntax Highlighter