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HTML Editor Online Free — Build, Preview & Download Instantly

Looking for an HTML editor online free that lets you write, preview, and run code in real time? Whether you're learning HTML or working on a front-end project, our tool gives you everything you need in one place — code, test, and download without installing anything.

What Is an Online HTML Editor?

An online HTML editor is a browser-based development environment that allows you to create web pages using HTML, CSS, and JavaScript. These editors provide live previews, syntax highlighting, and support for external styles and scripts — making them a popular choice for students, developers, and designers.

Key Features of Our Online HTML and CSS Editor

1. Syntax Highlighting

Code is color-coded and easy to read. It helps you identify errors quickly and improves clarity, especially when working with multiple languages in the same project.

2. Add CSS (Stylesheet Support)

You can write CSS directly in the CSS tab, and it will instantly apply to your HTML.

body {
      background-color: #f4f4f4;
      font-family: Arial, sans-serif;
    }
    
    h1 {
      color: #336699;
      text-align: center;
    }

3. Add JavaScript (Script Tab)

You can also write and run JavaScript in the JS tab — perfect for adding interactivity or testing scripts.

document.addEventListener("DOMContentLoaded", function () {
      document.getElementById("clickMe").addEventListener("click", function () {
        alert("Button clicked!");
      });
    });

And in your HTML:

<button id="clickMe">Click Me</button>

4. Real-Time Preview

No need to press a "Run" button — the editor reloads and reflects changes instantly as you type.

5. Resizable Editor Windows

Resize the HTML, CSS, JS, and Preview panes to fit your screen or workflow.

6. JavaScript Console Output

See your console messages or errors right inside the editor — just like using browser dev tools.

7. Download Your Project as index.html

Click a button to download your code as an index.html file, ready for deployment or reuse.

Who Should Use This HTML CSS Online Compiler?

Ideal for anyone looking for tools like:

It’s perfect for students, developers, designers, educators, and creators.

You can also explore our CSS and HTML editor online to practice styling and see the effects instantly.

You can also explore our JavaScript editor online to practice js and see the effects instantly.

Users can add CSS in the style panel and JavaScript in a dedicated tab, all of which is rendered instantly. Curious how HTML works? Check MDN Docs.

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