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Quick Answer

Our free HTML/CSS/JS Playground lets you write and preview web code in real-time. Perfect for prototyping, learning web development, or sharing code snippets. See your changes instantly in the live preview.

How It Works

Write your HTML structure in the HTML pane

Add styles in the CSS pane

Add interactivity with JavaScript

See instant results in the live preview

Share via URL or download your project

Key Facts

Live preview updates as you type
Separate panes for HTML, CSS, and JavaScript
Console output for JavaScript debugging
Share your code via URL
Responsive preview for mobile testing
No installation or sign-up required

Frequently Asked Questions

How is this different from CodePen?

Our playground is completely free with no limits, runs 100% in your browser, and requires no account. Your code stays private unless you share it.

Can I use external libraries?

Yes, add library links in the HTML section using script or link tags, or use CDN imports in your JavaScript.

Is my code saved?

Code is saved in your browser session. Share via URL to preserve it, or download the project to save locally.

Can I test responsive designs?

Yes, the preview pane can be resized to test different viewport sizes for responsive design testing.