Nuxt/docs/3.api/1.components/1.client-only.md

---
title: '<ClientOnly>'
description: Render components only in client-side with the <ClientOnly> component.
links:
  - label: Source
    icon: i-simple-icons-github
    to: https://github.com/nuxt/nuxt/blob/main/packages/nuxt/src/app/components/client-only.ts
    size: xs
---

The `<ClientOnly>` component is used for purposely rendering a component only on client side.

::note
The content of the default slot will be tree-shaken out of the server build. (This does mean that any CSS used by components within it may not be inlined when rendering the initial HTML.)
::

## Props

- `placeholderTag` | `fallbackTag`: specify a tag to be rendered server-side.
- `placeholder` | `fallback`: specify a content to be rendered server-side.

```vue
<template>
  <div>
    <Sidebar />
    <!-- The <Comment> component will only be rendered on client-side -->
    <ClientOnly fallback-tag="span" fallback="Loading comments...">
      <Comment />
    </ClientOnly>
  </div>
</template>
```

## Slots

- `#fallback`: specify a content to be rendered on the server and displayed until `<ClientOnly>` is mounted in the browser.

```vue [pages/example.vue]
<template>
  <div>
    <Sidebar />
    <!-- This renders the "span" element on the server side -->
    <ClientOnly fallbackTag="span">
      <!-- this component will only be rendered on client side -->
      <Comments />
      <template #fallback>
        <!-- this will be rendered on server side -->
        <p>Loading comments...</p>
      </template>
    </ClientOnly>
  </div>
</template>
```