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JavaScript Playground

Write, run, and share JavaScript code instantly.

The #1 JS sandbox with live preview, npm packages, and multi-file support. Perfect for learning, prototyping, and building real projects. Now with AI coding assistant.

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11M+
Developers
23M+
Projects Created
2016
Since
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PlayCode is the #1 JavaScript Playground trusted by millions of developers worldwide. Write, run, and test your JavaScript code instantly in your browser, no setup, no installation required.

A complete JS sandbox with live preview. Import npm packages with a single line. See your changes instantly as you type. Share your code playground with anyone via a simple link.

Now with AI coding assistant built-in. Describe what you want to build and watch AI write the code for you. The perfect JavaScript playground for learning, prototyping, and building real projects.

Why Use a JavaScript Playground?

A JavaScript playground lets you experiment with code without setting up a local environment. PlayCode's JS sandbox supports modern ES features, TypeScript, React, Vue, and more. Whether you're learning JavaScript, testing ideas, or building prototypes, our code playground is the fastest way to go from idea to working code.

Get on Board
1
Quick Start from a Template. Start instantly using pre-made templates. Over 2 million NPM packages available from the start. React, Vue, Lodash, RxJs, p5.js, Three.js and more.
JavaScript
CSS
HTML
React
Vue
Svelte
TypeScript
SolidJS
Material
TailwindCSS
Bootstrap
ThreeJS
2
See Result as You Type. Experience the fastest coding experience ever with PlayCode. Instantly observe the results as you type.
3
Debug in Console. Enhance your speed and debugging skills rapidly using PlayCode's efficient platform.
4
Live collaboration is built-in. Conduct coding interviews or create together with others from anywhere in the world, on any device.
          

            // Task 1: Sum of All Elements in an Array
// Example:
console.log(sumArray([1, 2, 3, 4])); // 10
          

        


          

            // Hmm... Let me try
function sumArray(arr) {
    return arr.reduce((acc, curr) => acc + curr, 0);
}
          

        


          

            // That's a really elegant solution!
5
Deploy and Share your Project. Make your projects live with just one click. With zero setup and custom domains, sharing your web apps with the world has never been simpler.
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Features
Code Autocomplete. Enhance your coding speed and efficiency with smart code autocomplete feature. Avoid checking the documentation frequently.
Bug Finder. PlayCode can identify and display all errors, providing assistance to fix them. Write, run code, correct any errors quickly.
The Most Flexible Layout.
Arrange panels as you like.
Upload Assets. Images, videos, sounds, shaders and others.
Color Themes.
Feels great in any environment.
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Ready to use
JavaScript Playground
No need to configure your own IDE preset, start immediately.
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Code seamlessly from any device
Jumping from your Mac to your iPad to your iPhone is no problem. Web editor is optimized for all devices.
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What our users value
Easy to use
Fast
Best for learners
The best JavaScript playground I have ever used.
I've tried many JS playgrounds and sandboxes, but PlayCode is on another level. The instant live preview, React and Vue support out of the box, and Tailwind CSS integration make it my go-to JavaScript playground for prototyping. No npm install, no setup, just code and see results instantly.
- Linda MacDonald
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