Code Runner

Import a single HTML file or a project folder, preview it safely, and open a standalone run.

Import project

Choose a folder to include its local stylesheets, scripts, images, and other assets.

No project loaded. You can also paste HTML into the editor below.

HTML Code

<!DOCTYPE html>
<html>
<head>
    <title>Hello World</title>
</head>
<body>
    <h1>Hello World!</h1>
    <p>This is a simple starting page.</p>
</body>
</html>

Preview (JavaScript Blocked)

Security Note: The standalone tab runs all code, including JavaScript. Only execute HTML you trust — untrusted scripts can access browser data.