Advance Custom HTML – Show Off Code Snippets with Live Preview vs Vaaky Highlighter

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. 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 Install and activate Advance Custom HTML. Open the editor for any post or page. Click Add Block and select Advance Custom HTML under Widgets. Write or paste your code. Customize the settings (theme, preview, copy button). Publish or update the content. Live Demo | Buy The Pro 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. Check out our other WordPress Plugins- Html5 Video Player – Display videos as single and playlist in multiple skins. PDF Poster – Display/Embed PDF files with different styles. Html5 Audio Player – Listen audios with awesome visuals. StreamCast – Customizable radio player with different skins. 3D Viewer – Embed 3D models and 3D products with interaction. Advanced Post Block – Show posts and custom posts in different layouts.

Vaaky Highlighter is a lightweight syntax highlighter plugin for the WordPress Gutenberg editor. Add beautiful code blocks with line numbers, a copy-to-clipboard button, optional filename label, automatic language detection, and 35+ themes. Powered by Highlight.js — a fast, dependency-free alternative to Prism. Syntax highlighting is powered by Highlight.js, a fast and dependency-free JavaScript library that supports multiple programming languages and themes. Vaaky Highlighter is ideal for developers, bloggers, technical writers, and documentation sites who want elegant syntax-highlighted code without unnecessary bloat. Using it is simple: add the Vaaky Highlighter Sourcecode block in Gutenberg, paste your code, and publish — the plugin handles everything automatically. View the live demo of all supported themes: Demo Page What’s new in 1.2.0 Line numbers for code blocks Floating copy-to-clipboard button on every block Optional filename label (renders as a tab above the code) Word-wrap toggle per block + global default Visual theme picker (no more guessing from a dropdown) Modernized build using @wordpress/scripts Drops PHP 5.6 / WordPress 6.0 support — now requires PHP 7.4 / WordPress 6.5 Usage Add the Vaaky Highlighter block in the Gutenberg editor Paste or write your code Select a language (optional) Save and view your page on the frontend Supported Languages Apache Bash C C# C++ CSS DNS Zone file DOS Django Dockerfile Go HTML / XML Handlebars JSON Java JavaScript Markdown Nginx Objective-C PHP Plaintext PostgreSQL & PL/pgSQL PowerShell Python R Ruby Rust SCSS SQL / MySQL Shell Twig TypeScript YAML / YML