React Playground

Free

JSX → live React preview, with Tailwind preloaded. Babel + React 18, all client-side.

Auto-run

Ctrl/⌘+Enter

App.jsx

Live preview

The preview iframe pre-loads React 18, ReactDOM 18, @babel/standalone (for JSX transform), and Tailwind v4 Play CDN. Mount with ReactDOM.createRoot(document.getElementById('root')).render(<App />). External fetch calls require CORS-allowing endpoints.

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About React Playground

Write JSX in your browser and see a live React 18 preview. @babel/standalone transforms JSX → JS in your browser, the result runs in a sandboxed iframe with React 18, ReactDOM 18, and Tailwind v4 pre-loaded. Includes ready-to-remix examples (counter, fetch, form, hooks). Everything client-side — code never leaves your tab.

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How to Use React Playground

Create, test, and preview React 18 components with Tailwind CSS directly in your browser using this client-side JSX editor.

1
Open the React Playground editor
Navigate to the React Playground tool to access the live JSX editor and sandboxed preview environment.
2
Select a starter code example
Choose from ready-to-remix examples like a counter, fetch request, or form to quickly bootstrap your React component.
3
Write your JSX and Tailwind code
Enter your React 18 code into the editor; Babel will automatically transform your JSX into JavaScript in real-time.
4
Preview your live React application
View the rendered output instantly in the sandboxed iframe, which comes with React, ReactDOM, and Tailwind v4 pre-loaded.
5
Debug and refine your component
Make adjustments to your hooks or styles and see the changes update immediately without leaving your browser tab.

Estimated time: PT1M

Frequently Asked Questions

What is the React Playground and how does it work?

The React Playground is a browser-based development tool that allows you to write JSX and see a live preview instantly. It uses @babel/standalone to transform your code into JavaScript directly in your browser, executing the result in a secure, sandboxed iframe.

Is this React online editor free to use?

Yes, this tool is completely free to use and does not require a paid subscription. Anonymous users can access up to 200 sessions, while authenticated users enjoy a higher rate limit of 1,000 sessions.

Does the React Playground support Tailwind CSS?

Yes, the playground comes with Tailwind v4 pre-loaded in the preview environment. This allows you to style your React components using utility classes without any additional configuration or installation steps.

Is my source code private when using this tool?

Your privacy is a priority as the entire transformation and execution process happens client-side. Your code never leaves your browser tab and is not sent to a server for processing.

What version of React does the playground use?

The environment is specifically optimized for React 18 and ReactDOM 18. It is designed to handle modern React features and includes ready-to-remix examples for hooks, state management, and data fetching.

Can I use the React Playground without installing anything?

You do not need to install Node.js or any local dependencies to use this tool. It runs entirely in your web browser, making it a fast alternative to local development environments for testing JSX snippets.

Are there any templates available to help me get started?

The tool includes several built-in examples that you can remix, such as a counter app, a fetch API demonstration, and form handling. These templates help you quickly understand how to structure your JSX and utilize the pre-loaded React 18 libraries.