next

What is next?

The 'next' npm package is a popular framework for building server-side rendered and statically generated React applications. It provides a set of features that simplify the development of modern web applications, including page-based routing, pre-rendering, automatic code splitting, and API routes.

What are next's main functionalities?

Page-based routing

Next.js provides a file-system-based router built on the concept of pages. When a file is added to the pages directory, it's automatically available as a route.

export default function Home() {
  return <div>Welcome to Next.js!</div>
}

API Routes

Next.js allows you to create API endpoints as part of your Next.js application. These are server-side functions that you can deploy alongside your application.

export default function handler(req, res) {
  res.status(200).json({ message: 'Hello from Next.js!' })
}

Static Generation and Server-Side Rendering

Next.js supports two forms of pre-rendering: Static Generation and Server-Side Rendering. This feature allows you to generate HTML in advance for optimal performance.

export async function getStaticProps() {
  const data = await fetchData();
  return { props: { data } };
}

Built-in CSS and Sass Support

Next.js allows you to import CSS and Sass files directly within your JavaScript components, providing a streamlined development experience.

import '../styles/globals.css';

export default function App({ Component, pageProps }) {
  return <Component {...pageProps} />
}

Automatic Code Splitting

Next.js automatically splits your code into small bundles that are loaded as needed, improving load times and performance.

import dynamic from 'next/dynamic';

const DynamicComponent = dynamic(() => import('../components/hello'));

export default function Home() {
  return <DynamicComponent />
}

Other packages similar to next

gatsby

Gatsby is a React-based static site generator that provides similar functionalities to Next.js, such as pre-rendering and code splitting. However, Gatsby is more focused on static site generation, whereas Next.js offers a hybrid approach with both static generation and server-side rendering.

nuxt

Nuxt.js is a framework based on Vue.js that offers functionalities similar to Next.js but for Vue.js applications. It provides server-side rendering, static site generation, and automatic code splitting, much like Next.js does for React applications.

create-react-app

Create React App is a boilerplate to create single-page React applications. It sets up a development environment and builds scripts but does not offer server-side rendering or static site generation out of the box like Next.js does.

sapper

Sapper is a framework for building web applications using Svelte, offering server-side rendering and static site generation. It's similar to Next.js in terms of goals but is designed for Svelte instead of React.

README

Next.js

Getting Started

Used by some of the world's largest companies, Next.js enables you to create full-stack web applications by extending the latest React features, and integrating powerful Rust-based JavaScript tooling for the fastest builds.

• Visit our Learn Next.js course to get started with Next.js.
• Visit the Next.js Showcase to see more sites built with Next.js.

Documentation

Visit https://nextjs.org/docs to view the full documentation.

Community

The Next.js community can be found on GitHub Discussions where you can ask questions, voice ideas, and share your projects with other people.

To chat with other community members you can join the Next.js Discord server.

Do note that our Code of Conduct applies to all Next.js community channels. Users are highly encouraged to read and adhere to them to avoid repercussions.

Contributing

Contributions to Next.js are welcome and highly appreciated. However, before you jump right into it, we would like you to review our Contribution Guidelines to make sure you have a smooth experience contributing to Next.js.

Good First Issues:

We have a list of good first issues that contain bugs that have a relatively limited scope. This is a great place for newcomers and beginners alike to get started, gain experience, and get familiar with our contribution process.

Authors

A list of the original co-authors of Next.js that helped bring this amazing framework to life!

• Tim Neutkens (@timneutkens)
• Naoyuki Kanezawa (@nkzawa)
• Guillermo Rauch (@rauchg)
• Arunoda Susiripala (@arunoda)
• Tony Kovanen (@tonykovanen)
• Dan Zajdband (@impronunciable)

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Security

If you believe you have found a security vulnerability in Next.js, we encourage you to responsibly disclose this and NOT open a public issue. We will investigate all legitimate reports. Email [e-mail] to disclose any security vulnerabilities. Alternatively, you can visit this link to know more about Vercel's security and report any security vulnerabilities.