•15 min read
Next.js App Router Migration from Pages Router: The Complete Practical Guide (2026)
A practical migration guide for teams moving production Next.js apps from Pages Router to App Router. Covers the architectural differences, incremental migration strategy, data fetching transformation (getServerSideProps/getStaticProps → RSC), API Routes → Route Handlers, common pitfalls at each phase, measured performance outcomes, and a decision framework for when migration is actually worth it.
- Next.js
- Architecture
- Migration
- React
- Performance
- Engineering