How to use React JS Editor Online
- Type or paste your text into React JS Editor Online's input area.
- Select Run and the result updates immediately, with no upload.
- Use Copy JSX to keep or reuse the result.
About this tool
There is no server behind React JS Editor Online. React JS Editor Online compiles your JSX with Babel and renders the React component inside a sandboxed iframe in your browser.
React, ReactDOM and Babel load inside the sandbox, so your code never touches the surrounding site. Your code runs in a sandboxed iframe isolated from this page, with no access to your cookies or storage, and nothing you write is uploaded.
Frequently asked questions
What is React JS Editor Online for?
React JS Editor Online runs entirely on your device: add your input, and it processes it locally in real time.
Does React JS Editor Online cost anything?
No — React JS Editor Online is completely free, with no sign-up and no hidden limits.
Is my input private in React JS Editor Online?
Yes — your input never leaves your device; React JS Editor Online does all the work in your browser.
Where does my React code run in React JS Editor Online?
Inside a sandboxed iframe in your browser: React JS Editor Online loads React and Babel there, compiles your JSX and renders it in isolation from this site.