Welcome to Next.js Beginner Guide 2025

In this tutorial, we will cover the basics of Next.js and how to get started with building fast, scalable, and performance-optimized React applications. Next.js is a popular React framework that allows you to build server-side rendered, statically generated, and performance-optimized applications with ease. By the end of this tutorial, you will have a solid understanding of Next.js and be able to start building your own applications.

Setting Up a New Next.js Project

To get started with Next.js, you need to set up a new project. You can do this by running the following command in your terminal:

npx create-next-app@latest my-next-app

This will create a new Next.js project in a directory called my-next-app. You can then navigate into the project directory and start the development server by running:

cd my-next-app
npm run dev

Understanding Pages in Next.js

In Next.js, pages are the core building blocks of your application. Each page is a separate React component that is rendered by the framework. To create a new page, you can simply create a new file in the pages directory. For example, to create a new page called about, you can create a file called about.js with the following content:

import React from 'react';

const About = () => {
  return (
    <div>
      <h1>About Page</h1>
      <p>This is the about page.</p>
    </div>
  );
};

export default About;

Linking Between Pages

To link between pages in Next.js, you can use the Link component from the next/link module. This component allows you to create client-side links between pages. For example, to create a link from the index page to the about page, you can use the following code:

import Link from 'next/link';

const Index = () => {
  return (
    <div>
      <h1>Index Page</h1>
      <Link href="/about">
        <a>Go to about page</a>
      </Link>
    </div>
  );
};

export default Index;

Using Get Static Props

Next.js provides a feature called getStaticProps that allows you to pre-render pages at build time. This can improve the performance of your application by reducing the amount of work that needs to be done at runtime. To use getStaticProps, you can add a getStaticProps function to your page component. For example:

import React from 'react';

const About = ({ data }) => {
  return (
    <div>
      <h1>About Page</h1>
      <p>{data}</p>
    </div>
  );
};

export const getStaticProps = async () => {
  const data = 'This is some sample data.';
  return {
    props: {
      data,
    },
  };
};

export default About;

Using Get Server Side Props

Next.js also provides a feature called getServerSideProps that allows you to render pages on the server at request time. This can be useful for pages that require dynamic data or authentication. To use getServerSideProps, you can add a getServerSideProps function to your page component. For example:

import React from 'react';

const About = ({ data }) => {
  return (
    <div>
      <h1>About Page</h1>
      <p>{data}</p>
    </div>
  );
};

export const getServerSideProps = async () => {
  const data = 'This is some sample data.';
  return {
    props: {
      data,
    },
  };
};

export default About;

Conclusion

In this tutorial, we have covered the basics of Next.js and how to get started with building fast, scalable, and performance-optimized React applications. We have learned about setting up a new Next.js project, understanding pages, linking between pages, using getStaticProps, and using getServerSideProps. With this knowledge, you can start building your own Next.js applications and take advantage of the many features and benefits that the framework has to offer.