Advance Custom HTML – Show Off Code Snippets with Live Preview

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

Advance Custom HTML | Pricing | Support | Live Demo

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.