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Gustavo Bueno
Gustavo Bueno

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Creating and running a Next.js project using Bun

The new JavaScript runtime environment is an exciting prospect for developers familiar with Node.js. This article will guide you through the process, leveraging my years of experience as a software engineer.

Understanding Bun and Next.js

Before diving into the technical aspects, it's essential to understand what Bun and Next.js are and why they're a good match.


A new JavaScript runtime like Node.js but built on the Zig language. It's known for its exceptional performance and includes a package manager, bundler, and transpiler.


A React-based framework that offers server-side rendering, static site generation, and other features for building efficient web applications.

Setting Up Your Environment

To start, ensure you have Bun installed on your system. You can install Bun on macOS, Linux, and Windows (via WSL). Visit the official Bun website for the latest installation instructions.

Creating a Next.js Project

Once Bun is installed, you can create a Next.js project. Unlike traditional Node.js, where you'd use npx create-next-app, with Bun, you use its package manager. Run the following command:

bun create next-app my-next-project
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Running the Project

Navigate to your project directory:

cd my-next-project
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Then, start your Next.js application using Bun:

bun --bun run dev
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Note that we added --bun so that we run the dev server with Bun instead of Node.js

This command starts the development server, and you can view your application by navigating to http://localhost:3000 in your browser.

Developing with Next.js and Bun

Developing a Next.js application on Bun isn't radically different from developing on Node.js. However, you'll notice performance improvements, especially in build times. You write your React components and pages as usual.

Building and Deploying

To build your Next.js application for production, use:

bun build
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This command creates an optimized production build. For deployment, you can use Vercel, Netlify, or any other service that supports Next.js.

Advantages and Considerations

Using Bun with Next.js provides several benefits:

  • Performance: Faster startup and execution times.
  • Modern Tooling: Bun's integrated package manager and transpiler streamline the development process.
  • Compatibility: Bun aims to be largely compatible with existing Node.js packages.

However, as Bun is relatively new, there may be compatibility issues with some Node.js packages. It's important to test thoroughly and keep an eye on the evolving ecosystem.

Bun represents an exciting development in the JavaScript world, offering significant performance improvements. When combined with Next.js, it provides a robust platform for building fast, efficient web applications. As the Bun ecosystem matures, it's likely to become an even more compelling option for JavaScript developers.

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