Why Font optimization with next/font in NextJS? - Purpose & Use Cases

The Big Idea

Discover how a simple tool can make your website's fonts load lightning fast without headaches!

The Scenario

Imagine manually adding multiple font files to your website, linking them in your HTML, and trying to make sure they load fast on every device.

The Problem

Manually managing fonts can slow down your site because you might load unnecessary font weights or styles, causing longer load times and poor user experience.

The Solution

Next/font automatically optimizes font loading by only including the fonts and styles you use, improving performance and simplifying your code.

Before vs After

✗ Before

<link href='https://fonts.googleapis.com/css?family=Roboto:400,700' rel='stylesheet' />\nbody { font-family: 'Roboto', sans-serif; }

✓ After

import { Roboto } from 'next/font/google'
const roboto = Roboto({ subsets: ['latin'], weight: ['400', '700'] })
<main className={roboto.className}>Hello</main>

What It Enables

You can deliver fast-loading, beautiful fonts tailored exactly to your site's needs without extra effort.

Real Life Example

A blog that uses next/font loads faster because it only downloads the font weights it uses, making readers happy with quick content display.

Key Takeaways

Manual font setup can slow your site and is hard to manage.

Next/font automates font loading and optimization.

This leads to faster, smoother user experiences.