What is the difference between BrowserRouter and HashRouter?

Short answer: Feature BrowserRouter HashRouter URL structure Clean URLs (e.g., /home, /about) URLs include a # (e.g., /home#about) Usage Preferred for modern apps on a web server Useful for apps without server-side routing (e.g., static sites) History API support Uses the HTML5 history API Uses the URL's hash to manage routing SEO friendliness SEO-friendly (with server-side configuration) Less SEO-friendly due to # in the URL

Say this in the interview

1. Define — one clear sentence (the short answer above).
2. Example — relate it to a project like ShopNest or your real work.
3. Trade-off — when you would not use it.