SvelteKit Structure

Quick Start

File types: +page.svelte (page) | +layout.svelte (wrapper) | +error.svelte (error boundary) | +server.ts (API endpoint)

Routes: src/routes/about/+page.svelte → /about | src/routes/posts/[id]/+page.svelte → /posts/123

Layouts: Apply to all child routes. +layout.svelte at any level wraps descendants.

Example

src/routes/
├── +layout.svelte              # Root layout (all pages)
├── +page.svelte                # Homepage /
├── about/+page.svelte          # /about
└── dashboard/
    ├── +layout.svelte          # Dashboard layout (dashboard pages only)
    ├── +page.svelte            # /dashboard
    └── settings/+page.svelte   # /dashboard/settings

<!-- +layout.svelte -->
<script>
	let { children } = $props();
</script>

<nav><!-- Navigation --></nav>
<main>{@render children()}</main>
<footer><!-- Footer --></footer>

Reference Files

• [file-naming.md](references/file-naming.md) - File naming

conventions

• [layout-patterns.md](references/layout-patterns.md) - Nested layouts
• [error-handling.md](references/error-handling.md) - +error.svelte

placement

• [svelte-boundary.md](references/svelte-boundary.md) -

Component-level error/pending

• [ssr-hydration.md](references/ssr-hydration.md) - SSR and

browser-only code

Notes

• Layouts: {@render children()} | Errors: +error.svelte above

failing route

• Groups: (name) folders don't affect URL | Client-only: check

browser

• Last verified: 2025-01-11

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