nuxt.config.ts

The nuxt.config file extension can either be .js, .ts or .mjs.

```ts twoslash [nuxt.config.ts] export default defineNuxtConfig({ // My Nuxt config })

::tip
`defineNuxtConfig` helper is globally available without import.
::

You can explicitly import `defineNuxtConfig` from `nuxt/config` if you prefer:

```ts twoslash [nuxt.config.ts]
import { defineNuxtConfig } from 'nuxt/config'

export default defineNuxtConfig({
  // My Nuxt config
})

::read-more{to="/docs/4.x/api/configuration/nuxt-config"} Discover all the available options in the Nuxt configuration documentation. ::

To ensure your configuration is up to date, Nuxt will make a full restart when detecting changes in the main configuration file, the .env, .nuxtignore and .nuxtrc dotfiles.