Kevin Newman

WraithKenny

This plugin allows Admin users the ability to add custom CSS and JavaScript directly into individual Post, Pages or any other registered custom post types. You can also add classes to the body tag and the post container. There is a Global settings page for which you can write Scripts n Styles for the entire blog.
Admin’s can also add classes to the TinyMCE “Formats” dropdown which users can use to style posts and pages directly. As of Scripts n Styles 3+ styles are reflected in the post editor.
Because only well trusted users should ever be allowed to insert JavaScript directly into the pages of your site, this plugin restricts usage to admin type users. Admin’s have access to even more sensitive areas by definition, so that should be relatively safe 😉
<h4>Notes about the implementation:</h4>
<ul>
<li>Admin users, or more specifically, any user with the <code>manage_options</code> and <code>unfiltered_html</code> capabilities (which by default is only the admin type user) can use this plugin’s functionality. Some plugins extend user rolls, and so this plugin would naturally extend include rolls that have the appropriate capability.</li>
<li>CSS Styles are embeded, not linked, at the bottom of the <code>head</code> element with <code>style</code> tags by using <code>wp-head</code>. If your theme doesn’t have this hook, this plugin (as well as most others) won’t work.</li>
<li>JavaScript is embeded, not linked, at the bottom of the <code>body</code> (or <code>head</code>) element with <code>script</code> tags by using <code>wp-footer</code> (or <code>wp-head</code>). If your theme doesn’t have this hook, this plugin (as well as most others) won’t work.</li>
<li>There is no input validation. This plugin puts exactly what you type in the meta box directly into the <code>html</code> with no error checking. You are an Admin, and we trust you to be carefull. Try not to break anything.</li>
<li>Do to the licensing of the libraries used, this plugin is released “GPL 3.0 or later” if you care about those things.</li>
</ul>

Scripts n Styles

This plugin is simply awesome. 
No other words to say. 

Must have! Great Job.

This plugin allows Admin users to individually add HTML, custom CSS, Classes and JavaScript directly to Post, Pages or any other custom post types.

Freemius

Abu Hayat

bPlugins

Charles Cormier

shehabulislam

Tanin Rahman

taninrahman21

#1 Plugin to Add Custom HTML & CSS & JavaScript Code and Display Any Code Snippet Beautifully in WordPress.
<a href="https://bplugins.com/products/advance-custom-html/" rel="nofollow ugc">Advance Custom HTML</a> lets users display HTML, CSS, JavaScript, PHP, Python, or other code snippets within WordPress posts, pages, or widgets. With built-in live preview support, syntax highlighting, and code editor features, it’s designed for sharing code in a clean, readable, and responsive format.
This plugin includes a front-end code editor with a draggable preview panel, multiple syntax themes, and customizable settings for formatting and appearance. Ideal for tutorials, technical articles, and documentation, it provides a flexible way to embed and present code with real-time results.
<a href="https://bplugins.com/products/advance-custom-html/" rel="nofollow ugc">Advance Custom HTML</a> | <a href="https://bplugins.com/products/advance-custom-html/pricing/" rel="nofollow ugc">Pricing</a> | <a href="https://bplugins.com/support/" rel="nofollow ugc">Support</a> | <a href="https://bplugins.com/products/advance-custom-html/#demos" rel="nofollow ugc">Demo</a>
<h3>Free Features – Everything You Need to Start</h3>
<ul>
<li>
Edit code and preview output together on the editor/backend.
</li>
<li>
Live Output Preview: See the results of your code instantly
</li>
<li>
Autocomplete suggestions while writing code
</li>
<li>
Draggable Preview Panel to move output anywhere on screen
</li>
<li>
Set editor Font Size
</li>
<li>
Fully responsive, mobile-friendly interface
</li>
<li>
Lightweight and fast for better performance
</li>
</ul>
<h3>Pro Features – Unlock Advanced Controls</h3>
The <a href="https://bplugins.com/products/advance-custom-html/pricing/" rel="nofollow ugc">Pro version</a> offers extended customization and control over code presentation and layout.
What’s Included in Pro:
<ul>
<li>
Choose from 40+ editor themes (dark, light, minimal, etc.)
</li>
<li>
Adjust Tab size, line wrapping, editor height/width
</li>
<li>
Change syntax mode per snippet: HTML, CSS, JS, PHP, Python, and more
</li>
<li>
Toggle features: Copy button, Fold gutter, Highlight active line, etc.
</li>
<li>
Customize the Copy to Clipboard button text, icon, style, and position
</li>
<li>
Hide Headings or Labels for a clean, minimalist look
</li>
<li>
Hide or Show Line numbers to simplify code presentation
</li>
<li>
Enable or Disable Wrap to control line flow in your editor
</li>
<li>
Edit Code Editor/Snippet Height and Width, and align left, center, or right
</li>
<li>
Fold Gutter support for collapsing code blocks
</li>
<li>
Highlight Active Line Toggle for easier focus during tutorials
</li>
</ul>
<h3>How to Use – Step-by-Step Guide</h3>
<h4>Quick setup in just a few steps:</h4>
<ul>
<li>
Install the Advance Custom HTML
</li>
<li>
Open the editor for any post or page
</li>
<li>
Click Add Block and select Advance Custom HTML under Widgets
</li>
<li>
Write or paste your code
</li>
<li>
Customize the settings (theme, preview, copy button)
</li>
<li>
Publish or update the content
</li>
</ul>
<h3>Use Cases:</h3>
<ul>
<li>
Write and preview front-end HTML/CSS tutorials
</li>
<li>
Embed JavaScript snippets with instant results
</li>
<li>
Display PHP code in educational content
</li>
<li>
Show Python syntax in data science blogs
</li>
<li>
Publish developer documentation or API guides
</li>
<li>
Create interactive code articles with live editing
</li>
</ul>
<h3>Perfect For:</h3>
<ul>
<li>
Bloggers and Tech Writers
</li>
<li>
Coaches, Instructors, and Course Creators
</li>
<li>
Web Developers and Designers
</li>
<li>
Software Product Sites
</li>
<li>
Niche Tutorials & SaaS Startups
</li>
<li>
Business Sites with Technical Content
</li>
<li>
Anyone publishing HTML, JS, CSS, PHP, or Python code
</li>
</ul>
<a href="https://bplugins.com/products/advance-custom-html/#demos" rel="nofollow ugc">Live Demo</a> | <a href="https://bplugins.com/products/advance-custom-html/pricing" rel="nofollow ugc">Buy The Pro</a>
<h3>Check out our other WordPress Plugins-</h3>
<a href="https://bplugins.com/products/html5-video-player/" rel="nofollow ugc">Html5 Video Player</a> – Display videos as single and playlist in multiple skins.
<a href="https://bplugins.com/products/pdf-poster/" rel="nofollow ugc">PDF Poster</a> – Display/Embed PDF files with different styles.
<a href="https://bplugins.com/products/html5-audio-player/" rel="nofollow ugc">Html5 Audio Player</a> – Listen audios with awesome visuals.
<a href="https://bplugins.com/products/streamcast-radio-player/" rel="nofollow ugc">StreamCast</a> – Customizable radio player with different skins.
<a href="https://bplugins.com/products/3d-viewer/" rel="nofollow ugc">3D Viewer</a> – Embed 3D models and 3D products with interaction.
<a href="https://bplugins.com/products/advanced-post-block/" rel="nofollow ugc">Advanced Post Block</a> – Show posts and custom posts in different layouts.

Advance Custom HTML – Show Live Code, Share Snippets, Embed Code, and Style Them Your Way.

Advance Custom HTML lets you write and display HTML, CSS, PHP, and other code snippets on WordPress with live preview and syntax highlighting.

Scripts n Styles vs Advance Custom HTML – Show Live Code, Share Snippets, Embed Code, and Style Them Your Way.