💻 Live HTML, CSS & JS Code Editor

Test and preview your code instantly

<div class="box"> <h1>Hello World!</h1> <p>Edit this code to see live changes.</p> <button onclick="greet()">Click Me</button> </div>

body { font-family: sans-serif; display: flex; justify-content: center; align-items: center; height: 90vh; margin: 0; background: #121212; color: #fff; } .box { text-align: center; padding: 30px; border: 1px solid #00e676; border-radius: 12px; background: #1a1a1a; }

function greet() { alert('Hello from the Live Editor!'); }

Live Preview

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About the Live Code Editor

The Live Code Editor is a browser-based development playground. Much like platforms such as CodePen or W3Schools' "Try it Yourself" feature, this tool allows you to write HTML, style it with CSS, and add interactive behavior using JavaScript—all with a simultaneous, real-time visual preview.

How to Use This Tool

1. Write Code: Use the dedicated tabs to toggle between your HTML skeleton, CSS styling sheet, and JavaScript actions.
2. Execute: Click the green "Run Code" button to load your changes directly into the preview window below.
3. Tinker: You can break, fix, and experiment with the code as much as you like without fear of ruining a live project.

Who Benefits from an Online Web Code Editor?

• Beginner Developers: Practice pure frontend web fundamentals without setting up complex local coding software like VS Code.
• Teachers & Students: Quickly demonstrate how minor HTML or CSS tweaks instantly alter the layout of a screen.
• Designers: Quickly mock up visual components or button hover states to see how they behave in a raw browser environment.

Frequently Asked Questions (FAQ)

Q: Is it safe to run script code here?

A: Yes. The preview frame runs in a locked sandbox locally on your machine. Any code executed inside it does not interact with your device files or our web servers.

Q: Why didn't my script work immediately?

A: Make sure you click the "Run Code" button! While HTML edits are easy to view, external scripts require a manual execute command to bind properly to the refreshed HTML frame.