diff --git a/src/components/DiffView.tsx b/src/components/DiffView.tsx
new file mode 100644
index 00000000..e8aff793
--- /dev/null
+++ b/src/components/DiffView.tsx
@@ -0,0 +1,45 @@
+import { cn } from '@/lib/utils'
+
+interface DiffViewProps {
+  diff: string
+}
+
+export function DiffView({ diff }: DiffViewProps) {
+  if (!diff) {
+    return (
+      <div className="flex h-full items-center justify-center text-sm text-muted-foreground">
+        No changes to display
+      </div>
+    )
+  }
+
+  const lines = diff.split('\n')
+
+  return (
+    <div className="font-mono text-[13px] leading-relaxed py-3">
+      {lines.map((line, i) => {
+        let lineClass = 'text-secondary-foreground'
+        if (line.startsWith('+') && !line.startsWith('+++')) {
+          lineClass = 'bg-[rgba(76,175,80,0.12)] text-[#4caf50]'
+        } else if (line.startsWith('-') && !line.startsWith('---')) {
+          lineClass = 'bg-[rgba(244,67,54,0.12)] text-[#f44336]'
+        } else if (line.startsWith('@@')) {
+          lineClass = 'bg-[rgba(33,150,243,0.08)] text-primary italic'
+        } else if (line.startsWith('diff') || line.startsWith('index') || line.startsWith('---') || line.startsWith('+++') || line.startsWith('new file')) {
+          lineClass = 'bg-muted text-muted-foreground font-semibold'
+        }
+
+        return (
+          <div key={i} className={cn("flex min-h-[22px] px-4", lineClass)}>
+            <span className="w-10 shrink-0 text-right pr-3 text-muted-foreground select-none">
+              {i + 1}
+            </span>
+            <span className="flex-1 whitespace-pre-wrap break-all px-2">
+              {line || '\u00A0'}
+            </span>
+          </div>
+        )
+      })}
+    </div>
+  )
+}
diff --git a/src/components/Editor.tsx b/src/components/Editor.tsx
index f08cbe91..f2e83fe0 100644
--- a/src/components/Editor.tsx
+++ b/src/components/Editor.tsx
@@ -6,6 +6,7 @@ import { BlockNoteView } from '@blocknote/mantine'
 import '@blocknote/mantine/style.css'
 import type { VaultEntry, GitCommit } from '../types'
 import { Inspector, type FrontmatterValue } from './Inspector'
+import { DiffView } from './DiffView'
 import { ResizeHandle } from './ResizeHandle'
 import { useEditorTheme } from '../hooks/useTheme'
 import { cn } from '@/lib/utils'
@@ -145,45 +146,7 @@ function expandWikilinksInContent(content: any[]): any[] {
   return result
 }
 
-function DiffView({ diff }: { diff: string }) {
-  if (!diff) {
-    return (
-      <div className="flex h-full items-center justify-center text-sm text-muted-foreground">
-        No changes to display
-      </div>
-    )
-  }
-
-  const lines = diff.split('\n')
-
-  return (
-    <div className="font-mono text-[13px] leading-relaxed py-3">
-      {lines.map((line, i) => {
-        let lineClass = 'text-secondary-foreground'
-        if (line.startsWith('+') && !line.startsWith('+++')) {
-          lineClass = 'bg-[rgba(76,175,80,0.12)] text-[#4caf50]'
-        } else if (line.startsWith('-') && !line.startsWith('---')) {
-          lineClass = 'bg-[rgba(244,67,54,0.12)] text-[#f44336]'
-        } else if (line.startsWith('@@')) {
-          lineClass = 'bg-[rgba(33,150,243,0.08)] text-primary italic'
-        } else if (line.startsWith('diff') || line.startsWith('index') || line.startsWith('---') || line.startsWith('+++') || line.startsWith('new file')) {
-          lineClass = 'bg-muted text-muted-foreground font-semibold'
-        }
-
-        return (
-          <div key={i} className={cn("flex min-h-[22px] px-4", lineClass)}>
-            <span className="w-10 shrink-0 text-right pr-3 text-muted-foreground select-none">
-              {i + 1}
-            </span>
-            <span className="flex-1 whitespace-pre-wrap break-all px-2">
-              {line || '\u00A0'}
-            </span>
-          </div>
-        )
-      })}
-    </div>
-  )
-}
+// DiffView extracted to ./DiffView.tsx
 
 /** Inner component that creates/manages BlockNote for a single tab */
 function BlockNoteTab({ content, entries, onNavigateWikilink }: { content: string; entries: VaultEntry[]; onNavigateWikilink: (target: string) => void }) {