diff --git a/packages/nuxt/src/app/nuxt.ts b/packages/nuxt/src/app/nuxt.ts
index c705912c84..9a2cbf3587 100644
--- a/packages/nuxt/src/app/nuxt.ts
+++ b/packages/nuxt/src/app/nuxt.ts
@@ -286,6 +286,8 @@ export function createNuxtApp (options: CreateOptions) {
       nuxtApp.callHook('app:chunkError', { error: (event as Event & { payload: Error }).payload })
     })
 
+    window.useNuxtApp = window.useNuxtApp || useNuxtApp
+
     // Log errors captured when running plugins, in the `app:created` and `app:beforeMount` hooks
     // as well as when mounting the app.
     const unreg = nuxtApp.hook('app:error', (...args) => { console.error('[nuxt] error caught during app initialization', ...args) })
diff --git a/packages/nuxt/src/app/types/augments.d.ts b/packages/nuxt/src/app/types/augments.d.ts
index 48439981a1..d93c85760c 100644
--- a/packages/nuxt/src/app/types/augments.d.ts
+++ b/packages/nuxt/src/app/types/augments.d.ts
@@ -1,4 +1,4 @@
-import type { NuxtApp } from '../nuxt'
+import type { NuxtApp, useNuxtApp } from '../nuxt'
 
 declare global {
   namespace NodeJS {
@@ -14,6 +14,7 @@ declare global {
 
   interface Window {
     __NUXT__?: Record<string, any>
+    useNuxtApp?: typeof useNuxtApp
   }
 }
 
diff --git a/test/bundle.test.ts b/test/bundle.test.ts
index c533359d13..d3dfa9c176 100644
--- a/test/bundle.test.ts
+++ b/test/bundle.test.ts
@@ -25,7 +25,7 @@ describe.skipIf(process.env.SKIP_BUNDLE_SIZE === 'true' || process.env.ECOSYSTEM
 
   it('default client bundle size', async () => {
     stats.client = await analyzeSizes('**/*.js', publicDir)
-    expect(roundToKilobytes(stats.client.totalBytes)).toMatchInlineSnapshot('"97.2k"')
+    expect(roundToKilobytes(stats.client.totalBytes)).toMatchInlineSnapshot('"97.3k"')
     expect(stats.client.files.map(f => f.replace(/\..*\.js/, '.js'))).toMatchInlineSnapshot(`
       [
         "_nuxt/entry.js",