Next.js Routing: Catch-all vs Dynamic Routes Gotchas

Next.js provides powerful routing capabilities, including dynamic routes and catch-all routes. Let's explore when to use each and how they differ.

Dynamic Routes

Dynamic routes are used when you have a single variable segment in your URL. They're perfect for scenarios where you have a known structure but a dynamic value.

Example: Blog Posts

app/blog/[slug]/page.tsx;

This route will match URLs like:

• /blog/my-first-post
• /blog/nextjs-tips

Catch-all Routes

Catch-all routes are more flexible and can handle multiple dynamic segments. They're ideal when you need to capture an unknown number of parameters.

Example: Nested Blog Categories

app/blog/[...slug]/page.tsx;

This route will match URLs like:

• /blog/tech/nextjs/routing
• /blog/lifestyle/travel/europe/france

When to Use Each

1. Use Dynamic Routes when you have a single, predictable dynamic segment.
2. Use Catch-all Routes when you need to handle multiple levels of hierarchy or unknown depth.

Try it out yourself!

Try out the different routing scenarios in this interactive demo to see if they should be a dynamic or catch-all route:

In this demo, try entering different URL paths to see how they're handled:

• /blog/my-post (Dynamic Route)
• /blog/tech/nextjs/routing (Catch-all Route)

Key Takeaways

• Dynamic routes are simpler and work well for single-segment variables.
• Catch-all routes offer more flexibility for complex hierarchies.
• Choose based on your URL structure and the level of flexibility you need.

Quiz 🧠