Code Playground

HTML
CSS
JavaScript

Online Code Playground: Write & Test Web Code Instantly

Welcome to the ultimate web development playground! Our free online code editor lets you write HTML, CSS, and JavaScript code with live previews. Whether you’re learning web development, testing code snippets, or prototyping ideas, this tool is perfect for:

  • Frontend developers testing responsive designs
  • Students learning HTML/CSS/JavaScript
  • Educators teaching web development basics
  • Freelancers prototyping client projects

How to Use the Code Playground

  1. Write Code: Use the dedicated editors for HTML, CSS, and JavaScript
  2. Preview Instantly: See results update in real-time
  3. Debug: Use browser developer tools for console output
  4. Save: Auto-saves to your browser’s local storage

Key Features

Real-Time Preview

See changes instantly as you type. No need to refresh!

Syntax Highlighting

Clean, readable code with support for HTML5, CSS3, and ES6+

Device Emulation

Test responsive designs with mobile/tablet preview modes

Why Developers Love This Playground

  • 🚫 No Ads: Distraction-free coding environment
  • 🔒 Privacy First: Code never leaves your browser
  • 📱 Mobile-Friendly: Works perfectly on all devices
  • 💾 Auto-Save: Never lose your work

Popular Use Cases

Learning Web Development

Practice HTML/CSS fundamentals or experiment with JavaScript APIs like Fetch or DOM manipulation.

Debugging Code

Isolate and fix issues in a clean environment with console access.

Frequently Asked Questions

Is there a sign-up required?

No! This code playground works 100% in your browser with no registration.

Can I share my code?

Yes! Copy/paste your code or save it locally to share with others.

Pro Tip for Better SEO

Test how search engines render your pages by pasting HTML markup here and checking mobile responsiveness.