Yes, you can deploy a React.js web app to shared hosting, as long as the hosting provider supports static files—which most of them do.
When you build your React app for production using a command like npm run build, it generates a folder called build that contains all the static files (HTML, CSS, and JavaScript). These files can be uploaded to the public_html or root directory of your shared hosting account using an FTP client like FileZilla or the hosting provider's file manager.
If your app uses React Router for navigation, you might need to configure the .htaccess file (on Apache servers) to handle routes properly and prevent 404 errors on refresh.
A few tips:
Shared hosting is fine for simple or static React apps.
If your app depends on server-side functionality or Node.js, shared hosting won’t work—you’ll need a VPS or a platform like Vercel or Netlify.
Be mindful of performance, especially if your app is expected to scale.
In short, shared hosting is a good, budget-friendly option for deploying basic to moderately complex React apps.