WordPress allows novices with no technical knowledge to create websites to the same standard as a developer. However, there are some advanced tasks that require you to change a few HTML codes in the WordPress editor. Therefore, you should have a basic understanding of HTML when you add HTML blocks to your websites.
In this article, you will find instructions for adding custom HTML pages to WordPress, and useful methods for protecting your unique content.
Adding Custom HTML with the Block Editor
WordPress has come a long way since its early days, and the modern block editor (Gutenberg) now makes it easy to add custom HTML to your pages and posts without needing to mess with FTP or server files. Let’s explore how to properly add custom HTML using today’s WordPress tools.
The Gutenberg editor, introduced in WordPress 5.0, provides a dedicated HTML block that makes adding custom code a breeze. Here’s how to do it:
- Open the WordPress Editor: Edit an existing page/post or create a new one in WordPress.
- Add a Custom HTML Block: Click the “+” icon to add a new block, then search for “Custom HTML” or find it in the “Formatting” section.
- Insert Your HTML Code: Simply paste or type your HTML code into the block. The editor provides a clean interface with syntax highlighting to make editing easier.
- Preview Your Code: The HTML block includes a “Preview” button that lets you see how your code will actually appear on the front end without having to update the entire page.
- Save and Publish: Once you’re satisfied with how your custom HTML looks, update or publish your page.

Using the Code Editor for More Control
If you need to edit the HTML of your entire post or page:
- Click the three dots in the top-right corner of the editor
- Select “Code Editor” from the dropdown menu
- This gives you access to the entire document’s HTML structure
- Make your changes and switch back to “Visual Editor” when done

The truth is, for most custom HTML needs, you won’t need to touch your server files or use FTP anymore. The block editor is powerful enough to handle most customizations directly within the WordPress interface.
When to Use a Plugin Instead
While the HTML block works great for simple code snippets, there are times when a plugin might be more appropriate:
- For complex JavaScript functionality
- When you need to add code to headers and footers site-wide
- For tracking codes that should appear on every page
In these cases, plugins like Header, Footer and Post Injections or Insert Headers and Footers provide more comprehensive solutions.
Protecting Your Custom HTML Content
If you’ve created valuable custom HTML content, you might want to protect it from unauthorized access. WordPress’s native privacy options now include:
- Password protection for entire posts/pages (in the Document Settings panel)
- Member-only content using the built-in visibility settings
- Content restrictions based on user roles
These built-in features eliminate the need for additional plugins in many cases, though specialized protection plugins can still offer more granular control for complex needs.
The modern WordPress editor makes working with custom HTML much more accessible than before. You can now focus on creating great content rather than wrestling with technical server configurations.
Conclusion
WordPress is the most widely used CMS in the world, largely because it offers the flexibility you need to create a unique website without any technical knowledge. However, it is better if you know how to add a custom HTML page to WordPress – hopefully we’ve covered that in the content above.