Advance Custom HTML

Share HTML, CSS, JavaScript, PHP, and Python snippets that readers can see, copy, and watch run live – right inside your posts and pages.

Why Advance Custom HTML?

Plain code dumps are hard to read and impossible to interact with. Advance Custom HTML lets you display HTML, CSS, JavaScript, PHP, Python, and other code snippets in WordPress posts, pages, or widgets with built-in syntax highlighting, a clean code editor, and live preview support – so your readers see the code and the result side by side.

The plugin includes a front-end code editor with a draggable preview panel, multiple syntax themes, and customizable settings for formatting and appearance. It is ideal for tutorials, technical articles, and documentation – a flexible, responsive way to embed and present code with real-time results.

Free Features

• Edit Code with Live Preview: Write code and see the rendered output together in the editor.
• Live Output Preview: See the results of your code instantly.
• Autocomplete Suggestions: Get smart suggestions while writing code.
• Draggable Preview Panel: Move the output panel anywhere on screen.
• Editor Font Size: Set the font size that suits your content.
• Fully Responsive: Mobile-friendly code blocks and preview panels on every device.
• Lightweight and Fast: Built for performance so your pages stay quick.

Pro Version – Unlock Advanced Controls

The Pro version offers extended customization and control over code presentation and layout.

Pro features include:

• Choose from 40+ editor themes (dark, light, minimal, and more).
• Adjust tab size, line wrapping, and editor height/width.
• Change syntax mode per snippet: HTML, CSS, JS, PHP, Python, and more.
• Toggle features: copy button, fold gutter, highlight active line, and more.
• Customize the Copy to Clipboard button text, icon, style, and position.
• Hide headings or labels for a clean, minimalist look.
• Show or hide line numbers to simplify code presentation.
• Enable or disable wrap to control line flow in your editor.
• Set the code editor/snippet height and width, and align left, center, or right.
• Fold gutter support for collapsing code blocks.
• Highlight active line toggle for easier focus during tutorials.

How to Use – Quick Start

1. Install and activate Advance Custom HTML.
2. Open the editor for any post or page.
3. Click Add Block and select Advance Custom HTML under Widgets.
4. Write or paste your code.
5. Customize the settings (theme, preview, copy button).
6. Publish or update the content.

Use Cases

• HTML/CSS Tutorials: Write and preview front-end lessons with live results.
• JavaScript Demos: Embed snippets with instant, interactive output.
• PHP Education: Display PHP code cleanly in courses and articles.
• Data Science Blogs: Show Python syntax with proper highlighting.
• Developer Documentation: Publish API guides and reference docs.
• Interactive Articles: Create code content readers can explore with live editing.

Perfect for bloggers, tech writers, instructors and course creators, web developers, software product sites, and anyone publishing HTML, JS, CSS, PHP, or Python code.

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Read the full description on the official page →