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<svelte:fragment slot="name">...</svelte:fragment>
In Svelte 5+, this concept is obsolete. Snippets don’t create a wrapping element, so <svelte:fragment> is no longer necessary.
The <svelte:fragment> element allows you to place content in a named slot without wrapping it in a container DOM element. This keeps the flow layout of your document intact.

​
Attributes

​
slot
string
required
The name of the slot to place this fragment’s content into.
​
let:*
any
Optional let directives to receive slot props from the component.

​
Usage

​
Basic named slot without wrapper

<!--- file: Widget.svelte --->
<div>
  <slot name="header">No header was provided</slot>
  <p>Some content between header and footer</p>
  <slot name="footer" />
</div>

<!--- file: App.svelte --->
<script>
  import Widget from './Widget.svelte';
</script>

<Widget>
  <h1 slot="header">Hello</h1>
  <svelte:fragment slot="footer">
    <p>All rights reserved.</p>
    <p>Copyright (c) 2019 Svelte Industries</p>
  </svelte:fragment>
</Widget>

​
Why use svelte:fragment?

Without <svelte:fragment>, you’d need to wrap the content in an element: 
<!-- Using a wrapper div -->
<Widget>
  <h1 slot="header">Hello</h1>
  <div slot="footer">
    <p>All rights reserved.</p>
    <p>Copyright (c) 2019 Svelte Industries</p>
  </div>
</Widget>
The extra <div> might interfere with your layout or styling. <svelte:fragment> solves this: 
<!-- No wrapper needed -->
<Widget>
  <h1 slot="header">Hello</h1>
  <svelte:fragment slot="footer">
    <p>All rights reserved.</p>
    <p>Copyright (c) 2019 Svelte Industries</p>
  </svelte:fragment>
</Widget>

​
With slot props

<!--- file: List.svelte --->
<ul>
  {#each items as item}
    <li>
      <slot name="item" {item} />
    </li>
  {/each}
</ul>

<!--- file: App.svelte --->
<script>
  import List from './List.svelte';
  let items = [1, 2, 3];
</script>

<List {items}>
  <svelte:fragment slot="item" let:item>
    <strong>Item:</strong>
    <span>{item}</span>
  </svelte:fragment>
</List>

​
Migration to Svelte 5

In Svelte 5, use snippets instead of slots. Snippets don’t create wrapper elements, making <svelte:fragment> unnecessary: 
<!--- file: Widget.svelte (Svelte 5) --->
<script>
  let { header, footer } = $props();
</script>

<div>
  {@render header?.()}
  <p>Some content between header and footer</p>
  {@render footer?.()}
</div>

<!--- file: App.svelte (Svelte 5) --->
<script>
  import Widget from './Widget.svelte';
</script>

<Widget>
  {#snippet header()}
    <h1>Hello</h1>
  {/snippet}
  
  {#snippet footer()}
    <p>All rights reserved.</p>
    <p>Copyright (c) 2019 Svelte Industries</p>
  {/snippet}
</Widget>

​
Important Notes

<svelte:fragment> must be the direct child of a component. It cannot be used in other contexts.
<svelte:fragment> can only have a slot attribute and (optionally) let: directives. No other attributes or directives are allowed.