All Visualizers

Next.js Visualizer

Comprehensive interactive visualizations for every Next.js concept

File System → Routes

app/
layout.tsx
page.tsx/
loading.tsx
error.tsx
not-found.tsx
about/
page.tsx/about
blog/
page.tsx/blog
[slug]/
page.tsx/blog/:slug
(marketing)/
pricing/
page.tsx/pricing
api/
route.tsGET /api

Routing Rules

page.tsx makes a route publicly accessible
layout.tsx wraps child pages with shared UI
(group)/ groups routes without affecting URL
[param]/ creates dynamic route segments
route.ts creates API endpoint handlers

Route Resolution

Hover a route to see resolution