Free HTML/CSS Live Preview Editor - Code & See

Write HTML and CSS with instant live preview. Includes starter templates, split/full-screen views and code export.

What Is HTML/CSS Live Preview Editor?

An HTML and CSS live preview lets you write front-end code and see the rendered result instantly, without saving files, refreshing a browser or running a local server. It is like a lightweight, browser-based code sandbox where you can experiment with layouts, styles and markup in real time.

This is particularly useful for learning web development, prototyping UI components, testing CSS properties and sharing visual code snippets. Every change you make is reflected immediately in the preview pane, so you get instant feedback on how your HTML structure and CSS styles work together.

How to Use This Tool

  1. Write your HTML markup in the HTML editor pane.
  2. Add CSS styles in the CSS editor pane.
  3. The preview updates in real time as you type.
  4. Use the layout toggle to switch between side-by-side and stacked views.
  5. Copy the combined HTML and CSS output to use in your project.

Tips & Best Practices

  • Start with a minimal HTML structure and add complexity incrementally — it is easier to debug in small steps.
  • Use CSS custom properties (--variables) to make your styles easy to adjust and experiment with.
  • Test responsive designs by resizing the preview pane — your layout should adapt gracefully.
  • The preview runs in an isolated sandbox, so external resources (fonts, images from URLs) will not load.

Common Use Cases

  • Prototyping UI components before adding them to a full project.
  • Learning HTML and CSS by experimenting with code and seeing instant results.
  • Testing CSS properties and values without modifying your main project files.
  • Creating shareable code snippets for documentation, blog posts or forums.

Frequently Asked Questions

Does the editor support JavaScript?

The free version supports HTML and CSS. Premium users can use starter templates and save multiple code snippets.

Can I export my code?

Click Copy HTML to get the complete HTML document with embedded CSS, ready to save as an .html file.