---
icon: IconFile
title: nuxt.config.ts
head.title: Nuxt configuration file
# Nuxt configuration file
Nuxt can be easily configured with a single `nuxt.config` file, which can have either a `.js`, `.ts` or `.mjs` extension.
```ts
import { defineNuxtConfig } from 'nuxt3'
export default defineNuxtConfig({
// My Nuxt config
})
```
To ensure your configuration is up to date, nuxt will make a full restart when detecting changes in the nuxt main configuration file, the `.env`, `.nuxtignore` and `.nuxtrc` dotfiles.
::ReadMore{link="/api/configuration/nuxt.config"}
::
