
What's the loading.jsx file in Next.js 15?
3/19/2025
Next.js 15 Has a Trick to Make Your Website Look Faster!
Speed matters! When users visit your website, they expect it to load instantly. A slow-loading page can lead to frustration and higher bounce rates. But did you know that Next.js 15 has a simple trick to make your site feel much faster?
🚀 The Power of loading.tsx
Next.js 15 introduces the loading.tsx
file, a built-in feature that displays a loading animation while your content is being fetched. This helps improve the perceived performance of your app, making it feel smoother and more professional.
🎬 How It Works
Whenever a page takes time to load—whether due to data fetching, server processing, or slow network conditions—Next.js automatically shows the loading.tsx
component. This prevents users from staring at a blank screen and keeps them engaged.
🔧 Implementing loading.tsx
Adding a loading screen to your app is super simple:
- Inside your
app
directory, navigate to the route where you want the loading effect. - Create a new file called
loading.tsx
. - Add the following simple animation:
{`"use client"; export default function Loading() { return ( ); }`}
Now, whenever the page is loading, users will see a smooth spinning animation instead of a blank screen!
✨ Why Use loading.tsx
?
- ✅ Better User Experience – Keeps users engaged during page loads.
- ✅ Perceived Speed Boost – Even if loading takes a moment, users feel the app is responsive.
- ✅ Professional Look – Makes your app feel polished and high-quality.
🚀 Conclusion
With just a few lines of code, loading.tsx
can drastically improve how users perceive your website’s speed. It’s a must-have feature for any Next.js 15 project that fetches data dynamically!
Have you tried using loading.tsx
in your app? Let us know how it worked for you! 👇