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.

cr8vstacks

<p><strong>LumiCode</strong> is a premium-quality syntax highlighter built for developers and technical bloggers who want beautiful, readable code on their WordPress site – without fighting the editor. Learn more and view the live demo at https://cr8vstacks.com/dev-playground/lumicode-syntax-highlighter/</p>
<h3>Key Features</h3>
<ul>
<li><strong>40+ languages</strong> auto-detected – PHP, JavaScript, TypeScript, Python, Go, Rust, SQL, YAML, Bash, and more</li>
<li><strong>13 bundled themes</strong> – Atom One, Dracula, GitHub, Monokai, Night Owl, Nord, Solarized, VS 2015, Xcode, and more, powered by highlight.js 11.11.1</li>
<li><strong>Dark & Light mode</strong> – toggle from the admin topbar. Applies to both admin UI and frontend code boxes</li>
<li><strong>Copy to Clipboard</strong> – one-click copy button on every code block</li>
<li><strong>Line numbers</strong> – perfectly aligned, synced to font size and line height</li>
<li><strong>Collapse / Expand</strong> – long code blocks auto-collapse after a configurable number of lines</li>
<li><strong>Filename / language badge</strong> – shows in the titlebar of every code box</li>
<li><strong>TinyMCE integration</strong> – Insert Code Block button in the Classic Editor toolbar, with language detection and all options</li>
<li><strong>Gutenberg block</strong> – native block editor support</li>
<li><strong>Code Scanner</strong> – scans your entire site for bare <code><pre></code> blocks and lets you apply LumiCode with one click, or dismiss</li>
<li><strong>Auto-detect</strong> – wraps any existing <code><pre></code> blocks automatically on the frontend without touching your content</li>
</ul>
<h3>How It Works</h3>
<p>LumiCode renders code blocks server-side (shortcodes + TinyMCE insertion) and enhances them on the frontend with a lightweight JS renderer. The renderer wraps <code><pre class="lumicode-pre"></code> elements in a beautiful VS Code-style chrome (titlebar, statusbar, line numbers, copy button) and runs highlight.js for syntax coloring.</p>
<p>No page builders required. Works with any theme.</p>
<h3>Shortcode Usage</h3>
<pre><code>[lumicode lang="javascript"]
const greeting = "Hello, world!";
console.log(greeting);
[/lumicode]
</code></pre>
<p><strong>All shortcode attributes:</strong><br />
* <code>lang</code> – language identifier (e.g. <code>php</code>, <code>python</code>, <code>typescript</code>)<br />
* <code>title</code> – filename shown in titlebar (e.g. <code>config.js</code>)<br />
* <code>highlight</code> – lines to accent (e.g. <code>1,3-5</code>)<br />
* <code>collapse</code> – force collapse (<code>true</code>/<code>false</code>)<br />
* <code>collapse-after</code> – collapse after N lines (overrides global setting)</p>
<h3>Performance</h3>
<ul>
<li>highlight.js is loaded locally (v11.11.1) for speed and privacy</li>
<li>Our CSS and JS are tiny (<15 KB combined, unminified)</li>
<li>No jQuery dependency on the frontend</li>
</ul>


LumiCode Syntax Highlighter

Beautiful syntax highlighting for WordPress. Auto-detects 40+ languages, with copy buttons, line numbers, collapse, and a dark/light theme switcher.

Syntax Highlight Nano vs LumiCode Syntax Highlighter