diff --git a/src/client/app/components/ClientOnly.ts b/src/client/app/components/ClientOnly.ts
index 680094ce..5d54d4ea 100644
--- a/src/client/app/components/ClientOnly.ts
+++ b/src/client/app/components/ClientOnly.ts
@@ -1,7 +1,18 @@
 import { defineComponent, onMounted, ref } from 'vue'
 
 export const ClientOnly = defineComponent({
-  setup(_, { slots }) {
+  props: {
+    isClientOnly: {
+      type: Boolean,
+      default: true
+    }
+  },
+  setup({ isClientOnly }, { slots }) {
+    if (isClientOnly) console.log({ isClientOnly, slots })
+    // Programmatically determine if this component should be
+    // client-only based on the presence of the isClientOnly attribute.
+    if (!isClientOnly) return () => slots.default?.() || null
+
     const show = ref(false)
 
     onMounted(() => {
diff --git a/src/client/theme-default/components/VPNavBarMenu.vue b/src/client/theme-default/components/VPNavBarMenu.vue
index 3f8fd8ae..7c7fed86 100644
--- a/src/client/theme-default/components/VPNavBarMenu.vue
+++ b/src/client/theme-default/components/VPNavBarMenu.vue
@@ -2,29 +2,32 @@
 import { useData } from '../composables/data'
 import VPNavBarMenuLink from './VPNavBarMenuLink.vue'
 import VPNavBarMenuGroup from './VPNavBarMenuGroup.vue'
+import { isClientOnly } from '../../shared'
 
 const { theme } = useData()
 </script>
 
 <template>
-  <nav
-    v-if="theme.nav"
-    aria-labelledby="main-nav-aria-label"
-    class="VPNavBarMenu"
-  >
-    <span id="main-nav-aria-label" class="visually-hidden">
-      Main Navigation
-    </span>
-    <template v-for="item in theme.nav" :key="JSON.stringify(item)">
-      <VPNavBarMenuLink v-if="'link' in item" :item="item" />
-      <component
-        v-else-if="'component' in item"
-        :is="item.component"
-        v-bind="item.props"
-      />
-      <VPNavBarMenuGroup v-else :item="item" />
-    </template>
-  </nav>
+  <ClientOnly :isClientOnly="isClientOnly(theme.nav)">
+    <nav
+      v-if="theme.nav"
+      aria-labelledby="main-nav-aria-label"
+      class="VPNavBarMenu"
+    >
+      <span id="main-nav-aria-label" class="visually-hidden">
+        Main Navigation
+      </span>
+      <template v-for="item in theme.nav" :key="JSON.stringify(item)">
+        <VPNavBarMenuLink v-if="'link' in item" :item="item" />
+        <component
+          v-else-if="'component' in item"
+          :is="item.component"
+          v-bind="item.props"
+        />
+        <VPNavBarMenuGroup v-else :item="item" />
+      </template>
+    </nav>
+  </ClientOnly>
 </template>
 
 <style scoped>
diff --git a/src/client/theme-default/components/VPSidebar.vue b/src/client/theme-default/components/VPSidebar.vue
index 35fa7838..3c4bf33c 100644
--- a/src/client/theme-default/components/VPSidebar.vue
+++ b/src/client/theme-default/components/VPSidebar.vue
@@ -4,8 +4,9 @@ import { inBrowser } from 'vitepress'
 import { ref, watch } from 'vue'
 import { useSidebar } from '../composables/sidebar'
 import VPSidebarGroup from './VPSidebarGroup.vue'
+import { isClientOnly } from '../../shared'
 
-const { sidebarGroups, hasSidebar } = useSidebar()
+const { sidebar, sidebarGroups, hasSidebar, isSidebarClientOnly } = useSidebar()
 
 const props = defineProps<{
   open: boolean
@@ -38,27 +39,18 @@ watch(
 </script>
 
 <template>
-  <aside
-    v-if="hasSidebar"
-    class="VPSidebar"
-    :class="{ open }"
-    ref="navEl"
-    @click.stop
-  >
+  <aside v-if="hasSidebar" class="VPSidebar" :class="{ open }" ref="navEl" @click.stop>
     <div class="curtain" />
 
-    <nav
-      class="nav"
-      id="VPSidebarNav"
-      aria-labelledby="sidebar-aria-label"
-      tabindex="-1"
-    >
+    <nav class="nav" id="VPSidebarNav" aria-labelledby="sidebar-aria-label" tabindex="-1">
       <span class="visually-hidden" id="sidebar-aria-label">
         Sidebar Navigation
       </span>
 
       <slot name="sidebar-nav-before" />
-      <VPSidebarGroup :items="sidebarGroups" :key="key" />
+      <ClientOnly :is-client-only="isSidebarClientOnly || isClientOnly(sidebar) || isClientOnly(sidebarGroups)">
+        <VPSidebarGroup :items="sidebarGroups" :key="key" />
+      </ClientOnly>
       <slot name="sidebar-nav-after" />
     </nav>
   </aside>
diff --git a/src/client/theme-default/components/VPSidebarGroup.vue b/src/client/theme-default/components/VPSidebarGroup.vue
index 892fd3d9..2661273a 100644
--- a/src/client/theme-default/components/VPSidebarGroup.vue
+++ b/src/client/theme-default/components/VPSidebarGroup.vue
@@ -2,6 +2,7 @@
 import type { DefaultTheme } from 'vitepress/theme'
 import { onBeforeUnmount, onMounted, ref } from 'vue'
 import VPSidebarItem from './VPSidebarItem.vue'
+import { isClientOnly } from '../../shared'
 
 defineProps<{
   items: DefaultTheme.SidebarItem[]
@@ -33,7 +34,9 @@ onBeforeUnmount(() => {
     class="group"
     :class="{ 'no-transition': disableTransition }"
   >
-    <VPSidebarItem :item="item" :depth="0" />
+    <ClientOnly :isClientOnly="isClientOnly(item)">
+      <VPSidebarItem :item="item" :depth="0" />
+    </ClientOnly>
   </div>
 </template>
 
diff --git a/src/client/theme-default/components/VPSidebarItem.vue b/src/client/theme-default/components/VPSidebarItem.vue
index 022584e3..8d0642d9 100644
--- a/src/client/theme-default/components/VPSidebarItem.vue
+++ b/src/client/theme-default/components/VPSidebarItem.vue
@@ -3,6 +3,7 @@ import type { DefaultTheme } from 'vitepress/theme'
 import { computed } from 'vue'
 import { useSidebarControl } from '../composables/sidebar'
 import VPLink from './VPLink.vue'
+import { isClientOnly } from '../../shared'
 
 const props = defineProps<{
   item: DefaultTheme.SidebarItem
@@ -55,56 +56,32 @@ function onCaretClick() {
 </script>
 
 <template>
-  <component :is="sectionTag" class="VPSidebarItem" :class="classes">
-    <div
-      v-if="item.text"
-      class="item"
-      :role="itemRole"
-      v-on="
-        item.items
+  <ClientOnly :isClientOnly="isClientOnly(item)">
+    <component :is="sectionTag" class="VPSidebarItem" :class="classes">
+      <div v-if="item.text" class="item" :role="itemRole" v-on="item.items
           ? { click: onItemInteraction, keydown: onItemInteraction }
           : {}
-      "
-      :tabindex="item.items && 0"
-    >
-      <div class="indicator" />
-
-      <VPLink
-        v-if="item.link"
-        :tag="linkTag"
-        class="link"
-        :href="item.link"
-        :rel="item.rel"
-        :target="item.target"
-      >
-        <component :is="textTag" class="text" v-html="item.text" />
-      </VPLink>
-      <component v-else :is="textTag" class="text" v-html="item.text" />
-
-      <div
-        v-if="item.collapsed != null && item.items && item.items.length"
-        class="caret"
-        role="button"
-        aria-label="toggle section"
-        @click="onCaretClick"
-        @keydown.enter="onCaretClick"
-        tabindex="0"
-      >
-        <span class="vpi-chevron-right caret-icon" />
+        " :tabindex="item.items && 0">
+        <div class="indicator" />
+
+        <VPLink v-if="item.link" :tag="linkTag" class="link" :href="item.link" :rel="item.rel" :target="item.target">
+          <component :is="textTag" class="text" v-html="item.text" />
+        </VPLink>
+        <component v-else :is="textTag" class="text" v-html="item.text" />
+
+        <div v-if="item.collapsed != null && item.items && item.items.length" class="caret" role="button"
+          aria-label="toggle section" @click="onCaretClick" @keydown.enter="onCaretClick" tabindex="0">
+          <span class="vpi-chevron-right caret-icon" />
+        </div>
       </div>
-    </div>
-
-    <div v-if="item.items && item.items.length" class="items">
-      <template v-if="depth < 5">
-        <VPSidebarItem
-          v-for="i in item.items"
-          :key="i.text"
-          :item="i"
-          :depth="depth + 1"
-        />
-      </template>
-    </div>
-  </component>
+
+      <div v-if="item.items && item.items.length" class="items">
+        <template v-if="depth < 5">
+          <VPSidebarItem v-for="i in item.items" :key="i.text" :item="i" :depth="depth + 1" />
+        </template>
+      </div>
+    </component>
+  </ClientOnly>
 </template>
 
 <style scoped>
@@ -122,7 +99,7 @@ function onCaretClick() {
   width: 100%;
 }
 
-.VPSidebarItem.collapsible > .item {
+.VPSidebarItem.collapsible>.item {
   cursor: pointer;
 }
 
@@ -136,10 +113,10 @@ function onCaretClick() {
   transition: background-color 0.25s;
 }
 
-.VPSidebarItem.level-2.is-active > .item > .indicator,
-.VPSidebarItem.level-3.is-active > .item > .indicator,
-.VPSidebarItem.level-4.is-active > .item > .indicator,
-.VPSidebarItem.level-5.is-active > .item > .indicator {
+.VPSidebarItem.level-2.is-active>.item>.indicator,
+.VPSidebarItem.level-3.is-active>.item>.indicator,
+.VPSidebarItem.level-4.is-active>.item>.indicator,
+.VPSidebarItem.level-5.is-active>.item>.indicator {
   background-color: var(--vp-c-brand-1);
 }
 
@@ -171,36 +148,36 @@ function onCaretClick() {
   color: var(--vp-c-text-2);
 }
 
-.VPSidebarItem.level-0.is-link > .item > .link:hover .text,
-.VPSidebarItem.level-1.is-link > .item > .link:hover .text,
-.VPSidebarItem.level-2.is-link > .item > .link:hover .text,
-.VPSidebarItem.level-3.is-link > .item > .link:hover .text,
-.VPSidebarItem.level-4.is-link > .item > .link:hover .text,
-.VPSidebarItem.level-5.is-link > .item > .link:hover .text {
+.VPSidebarItem.level-0.is-link>.item>.link:hover .text,
+.VPSidebarItem.level-1.is-link>.item>.link:hover .text,
+.VPSidebarItem.level-2.is-link>.item>.link:hover .text,
+.VPSidebarItem.level-3.is-link>.item>.link:hover .text,
+.VPSidebarItem.level-4.is-link>.item>.link:hover .text,
+.VPSidebarItem.level-5.is-link>.item>.link:hover .text {
   color: var(--vp-c-brand-1);
 }
 
-.VPSidebarItem.level-0.has-active > .item > .text,
-.VPSidebarItem.level-1.has-active > .item > .text,
-.VPSidebarItem.level-2.has-active > .item > .text,
-.VPSidebarItem.level-3.has-active > .item > .text,
-.VPSidebarItem.level-4.has-active > .item > .text,
-.VPSidebarItem.level-5.has-active > .item > .text,
-.VPSidebarItem.level-0.has-active > .item > .link > .text,
-.VPSidebarItem.level-1.has-active > .item > .link > .text,
-.VPSidebarItem.level-2.has-active > .item > .link > .text,
-.VPSidebarItem.level-3.has-active > .item > .link > .text,
-.VPSidebarItem.level-4.has-active > .item > .link > .text,
-.VPSidebarItem.level-5.has-active > .item > .link > .text {
+.VPSidebarItem.level-0.has-active>.item>.text,
+.VPSidebarItem.level-1.has-active>.item>.text,
+.VPSidebarItem.level-2.has-active>.item>.text,
+.VPSidebarItem.level-3.has-active>.item>.text,
+.VPSidebarItem.level-4.has-active>.item>.text,
+.VPSidebarItem.level-5.has-active>.item>.text,
+.VPSidebarItem.level-0.has-active>.item>.link>.text,
+.VPSidebarItem.level-1.has-active>.item>.link>.text,
+.VPSidebarItem.level-2.has-active>.item>.link>.text,
+.VPSidebarItem.level-3.has-active>.item>.link>.text,
+.VPSidebarItem.level-4.has-active>.item>.link>.text,
+.VPSidebarItem.level-5.has-active>.item>.link>.text {
   color: var(--vp-c-text-1);
 }
 
-.VPSidebarItem.level-0.is-active > .item .link > .text,
-.VPSidebarItem.level-1.is-active > .item .link > .text,
-.VPSidebarItem.level-2.is-active > .item .link > .text,
-.VPSidebarItem.level-3.is-active > .item .link > .text,
-.VPSidebarItem.level-4.is-active > .item .link > .text,
-.VPSidebarItem.level-5.is-active > .item .link > .text {
+.VPSidebarItem.level-0.is-active>.item .link>.text,
+.VPSidebarItem.level-1.is-active>.item .link>.text,
+.VPSidebarItem.level-2.is-active>.item .link>.text,
+.VPSidebarItem.level-3.is-active>.item .link>.text,
+.VPSidebarItem.level-4.is-active>.item .link>.text,
+.VPSidebarItem.level-5.is-active>.item .link>.text {
   color: var(--vp-c-brand-1);
 }
 
@@ -233,7 +210,9 @@ function onCaretClick() {
 }
 
 .VPSidebarItem.collapsed .caret-icon {
-  transform: rotate(0)/*rtl:rotate(180deg)*/;
+  transform: rotate(0)
+    /*rtl:rotate(180deg)*/
+  ;
 }
 
 .VPSidebarItem.level-1 .items,
diff --git a/src/client/theme-default/composables/sidebar.ts b/src/client/theme-default/composables/sidebar.ts
index ed060e4d..fcb937a3 100644
--- a/src/client/theme-default/composables/sidebar.ts
+++ b/src/client/theme-default/composables/sidebar.ts
@@ -11,7 +11,7 @@ import {
   type ComputedRef,
   type Ref
 } from 'vue'
-import { isActive } from '../../shared'
+import { isActive, isClientOnly } from '../../shared'
 import {
   hasActiveLink as containsActiveLink,
   getSidebar,
@@ -96,6 +96,7 @@ export function useSidebar() {
     hasAside,
     leftAside,
     isSidebarEnabled,
+    isSidebarClientOnly: isClientOnly(theme.value.sidebar),
     open,
     close,
     toggle
diff --git a/src/node/config.ts b/src/node/config.ts
index f5e0bb39..25c2548f 100644
--- a/src/node/config.ts
+++ b/src/node/config.ts
@@ -17,6 +17,7 @@ import type { RawConfigExports, SiteConfig, UserConfig } from './siteConfig'
 
 export { resolvePages } from './plugins/dynamicRoutesPlugin'
 export * from './siteConfig'
+export { clientOnly, isClientOnly } from './shared'
 
 const debug = _debug('vitepress:config')
 
diff --git a/src/shared/shared.ts b/src/shared/shared.ts
index 0dd35db4..a8635af1 100644
--- a/src/shared/shared.ts
+++ b/src/shared/shared.ts
@@ -230,3 +230,14 @@ export function escapeHtml(str: string): string {
     .replace(/"/g, '&quot;')
     .replace(/&(?![\w#]+;)/g, '&amp;')
 }
+
+const CLIENT_ONLY = '[VP_CLIENT_ONLY]'
+
+export function clientOnly<T extends object>(obj: T): T {
+  ;(obj as any)[CLIENT_ONLY] = true
+  return obj
+}
+
+export function isClientOnly<T = any>(obj: T) {
+  return Boolean((obj as any)?.[CLIENT_ONLY])
+}