diff --git a/src/App.svelte b/src/App.svelte
index 29e6e9e..c5b0462 100644
--- a/src/App.svelte
+++ b/src/App.svelte
@@ -6,6 +6,7 @@
   import SiteHeader from '$components/chrome/SiteHeader.svelte'
   import SiteNav from '$components/chrome/SiteNav.svelte'
   import SiteFooter from '$components/chrome/SiteFooter.svelte'
+  import RefreshHotkey from '$components/common/RefreshHotkey.svelte'
   import Home from '$routes/Home.svelte'
   import Profile from '$routes/Profile.svelte'
   import Timeline from '$routes/Timeline.svelte'
@@ -56,6 +57,8 @@
   )
 </script>
 
+<RefreshHotkey />
+
 <div class="site">
   <SiteHeader />
   <SiteNav />
diff --git a/src/components/common/RefreshHotkey.svelte b/src/components/common/RefreshHotkey.svelte
new file mode 100644
index 0000000..e416436
--- /dev/null
+++ b/src/components/common/RefreshHotkey.svelte
@@ -0,0 +1,43 @@
+<script lang="ts">
+  /**
+   * App-wide, deliberately invisible refresh shortcut.
+   *
+   * The action is injectable so this component can be tested without actually
+   * navigating, and editable controls are ignored so composing text is safe.
+   */
+  interface Props {
+    onrefresh?: () => void
+  }
+
+  let { onrefresh = () => window.location.reload() }: Props = $props()
+
+  function isEditable(target: EventTarget | null): boolean {
+    if (!(target instanceof Element)) return false
+    return Boolean(
+      target.closest(
+        'input, textarea, select, [contenteditable]:not([contenteditable="false"])',
+      ),
+    )
+  }
+
+  function handleKeydown(event: KeyboardEvent): void {
+    if (
+      event.defaultPrevented ||
+      event.repeat ||
+      event.isComposing ||
+      event.key.toLowerCase() !== 'r' ||
+      !event.shiftKey ||
+      event.altKey ||
+      event.ctrlKey ||
+      event.metaKey ||
+      isEditable(event.target)
+    ) {
+      return
+    }
+
+    event.preventDefault()
+    onrefresh()
+  }
+</script>
+
+<svelte:window onkeydown={handleKeydown} />
diff --git a/src/components/common/RefreshHotkey.test.ts b/src/components/common/RefreshHotkey.test.ts
new file mode 100644
index 0000000..486fb18
--- /dev/null
+++ b/src/components/common/RefreshHotkey.test.ts
@@ -0,0 +1,36 @@
+import { fireEvent, render } from '@testing-library/svelte'
+import { describe, expect, it, vi } from 'vitest'
+import RefreshHotkey from './RefreshHotkey.svelte'
+
+describe('RefreshHotkey', () => {
+  it('refreshes for Shift+R from anywhere on the page', async () => {
+    const onrefresh = vi.fn()
+    render(RefreshHotkey, { props: { onrefresh } })
+
+    const event = new KeyboardEvent('keydown', {
+      key: 'R',
+      shiftKey: true,
+      bubbles: true,
+      cancelable: true,
+    })
+    window.dispatchEvent(event)
+
+    expect(onrefresh).toHaveBeenCalledOnce()
+    expect(event.defaultPrevented).toBe(true)
+  })
+
+  it('ignores typing, repeats, and other modifier combinations', async () => {
+    const onrefresh = vi.fn()
+    render(RefreshHotkey, { props: { onrefresh } })
+    const input = document.createElement('input')
+    document.body.append(input)
+
+    await fireEvent.keyDown(input, { key: 'R', shiftKey: true })
+    await fireEvent.keyDown(window, { key: 'r' })
+    await fireEvent.keyDown(window, { key: 'R', shiftKey: true, repeat: true })
+    await fireEvent.keyDown(window, { key: 'R', shiftKey: true, ctrlKey: true })
+    await fireEvent.keyDown(window, { key: 'R', shiftKey: true, metaKey: true })
+
+    expect(onrefresh).not.toHaveBeenCalled()
+  })
+})