Next.js App Router Guide — Server Components & Routing
Learn Next.js App Router: file-based routing, layouts, server components, and data fetching in 2026.
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Next.js App Router in Practice
Next.js App Router (app/ directory) is the default for new React projects. Server Components reduce client JavaScript and improve SEO — critical for education sites like Sturdee.
Why Next.js App Router Matters
App Router enables Server Components, streaming, and built-in SEO metadata — it's the default for new Next.js projects in 2026.
Server Components run on the server only; add 'use client' only when you need hooks, events, or browser APIs.
Next.js App Router — Key Ideas You Must Know
- app/page.tsx = route
- layout.tsx wraps children
- Server vs Client Components
- generateMetadata for SEO
- Server Actions for forms
Practice Next.js App Router with Free Lessons
Build a blog or portfolio with Next.js after completing JavaScript on Sturdee.
Tip: Free interactive lesson: /tutorials/javascript — practice Next.js App Router with runnable code on Sturdee.
Next.js App Router Guide — FAQ
Frequently Asked Questions
Pages Router vs App Router?+
App Router is the future. New projects should use app/.
Continue learning interactively
Free tutorial: /tutorials/javascript →