How to use React JS Online Editor
- Drop your text into the field at the top of React JS Online Editor.
- Select Run and the result updates immediately, with no upload.
- Finish by choosing Copy JSX to take the output with you.
About this tool
There is no server behind React JS Online Editor. React JS Online Editor compiles your JSX with Babel and renders the React component inside a sandboxed iframe in your browser.
The preview runs in a sandbox with no access to this page, your cookies or your storage. 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 does React JS Online Editor do?
Use React JS Online Editor to process your input without installing anything; everything happens client-side.
Is React JS Online Editor free to use?
Yes — React JS Online Editor is completely free, with no usage limits.
Is my input private in React JS Online Editor?
Yes — your input never leaves your device; React JS Online Editor does all the work in your browser.
Where does my React code run in React JS Online Editor?
Inside a sandboxed iframe in your browser: React JS Online Editor loads React and Babel there, compiles your JSX and renders it in isolation from this site.