Pages Router

The original Next.js router based on the pages/ directory. Legacy: still supported, but new projects use the App Router.

📄️Pages Router

pages/ routing, dynamic routes, _app and _document, navigation and redirects

SSG, ISR, SSR and CSR in the Pages Router, automatic static optimization

getStaticProps, getStaticPaths, getServerSideProps, ISR and on-demand revalidation, client-side fetching

API Routes in pages/api, submitting a form to an API Route, validation and errors