diff --git a/src/renderer/components/Editor/Editor.css b/src/renderer/components/Editor/Editor.css
index fb91fa8..b258157 100644
--- a/src/renderer/components/Editor/Editor.css
+++ b/src/renderer/components/Editor/Editor.css
@@ -115,6 +115,32 @@
   gap: 16px;
 }
 
+.metadata-toggle {
+  display: flex;
+  align-items: center;
+  gap: 8px;
+  width: 100%;
+  padding: 6px 4px;
+  background: none;
+  border: none;
+  color: var(--vscode-descriptionForeground);
+  font-size: 11px;
+  font-weight: 500;
+  text-transform: uppercase;
+  letter-spacing: 0.5px;
+  cursor: pointer;
+  transition: color 0.15s;
+}
+
+.metadata-toggle:hover {
+  color: var(--vscode-foreground);
+}
+
+.metadata-toggle-chevron {
+  font-size: 10px;
+  transition: transform 0.15s;
+}
+
 .editor-header-row {
   display: flex;
   gap: 16px;
diff --git a/src/renderer/components/Editor/Editor.tsx b/src/renderer/components/Editor/Editor.tsx
index d24e50b..414a408 100644
--- a/src/renderer/components/Editor/Editor.tsx
+++ b/src/renderer/components/Editor/Editor.tsx
@@ -189,6 +189,7 @@ export const PostEditor: React.FC<PostEditorProps> = ({ postId }) => {
   const [lightboxIndex, setLightboxIndex] = useState(0);
   const [showPostSearch, setShowPostSearch] = useState(false);
   const [showMediaSearch, setShowMediaSearch] = useState(false);
+  const [metadataExpanded, setMetadataExpanded] = useState(true);
   const editorRef = useRef<unknown>(null);
 
   const isDirty = checkIsDirty(postId);
@@ -298,6 +299,9 @@ export const PostEditor: React.FC<PostEditorProps> = ({ postId }) => {
       setAuthor(post.author || '');
       setTags(post.tags);
       setSelectedCategories(post.categories.length > 0 ? post.categories : ['article']);
+      if (!isInitialized) {
+        setMetadataExpanded(post.title === '');
+      }
       markClean(postId);
       // Mark as initialized AFTER setting local state
       setIsInitialized(true);
@@ -718,6 +722,14 @@ export const PostEditor: React.FC<PostEditorProps> = ({ postId }) => {
       </div>
 
       <div className="editor-content">
+        <button
+          className={`metadata-toggle ${metadataExpanded ? 'expanded' : ''}`}
+          onClick={() => setMetadataExpanded(v => !v)}
+        >
+          <span className="metadata-toggle-chevron">{metadataExpanded ? '▼' : '▶'}</span>
+          <span>{tr('editor.metadata.toggle')}</span>
+        </button>
+        {metadataExpanded && (
         <div className="editor-header-row">
           <div className="editor-meta">
             <div className="editor-field">
@@ -768,18 +780,19 @@ export const PostEditor: React.FC<PostEditorProps> = ({ postId }) => {
                 />
               </div>
             </div>
-            
+
             <PostLinks
               postId={postId}
               updatedAt={post.updatedAt}
               onPostClick={(id) => useAppStore.getState().setSelectedPost(id)}
             />
           </div>
-          
+
           <div className="editor-media-panel">
             <LinkedMediaPanel postId={postId} />
           </div>
         </div>
+        )}
         
         <div className="editor-body">
           <div className="editor-toolbar">
diff --git a/src/renderer/i18n/locales/de.json b/src/renderer/i18n/locales/de.json
index 45d9afd..447a5fb 100644
--- a/src/renderer/i18n/locales/de.json
+++ b/src/renderer/i18n/locales/de.json
@@ -510,6 +510,7 @@
   "editor.insertMediaTitle": "Bild aus Medienbibliothek einfügen",
   "editor.previewFrameTitle": "Beitragsvorschau",
   "editor.previewLoading": "Vorschau wird geladen...",
+  "editor.metadata.toggle": "Metadaten",
   "editor.footer.created": "Erstellt",
   "editor.footer.updated": "Aktualisiert",
   "editor.footer.published": "Veröffentlicht",
diff --git a/src/renderer/i18n/locales/en.json b/src/renderer/i18n/locales/en.json
index 35b24c1..6401a46 100644
--- a/src/renderer/i18n/locales/en.json
+++ b/src/renderer/i18n/locales/en.json
@@ -510,6 +510,7 @@
   "editor.insertMediaTitle": "Insert image from media library",
   "editor.previewFrameTitle": "Post preview",
   "editor.previewLoading": "Loading preview...",
+  "editor.metadata.toggle": "Metadata",
   "editor.footer.created": "Created",
   "editor.footer.updated": "Updated",
   "editor.footer.published": "Published",
diff --git a/src/renderer/i18n/locales/es.json b/src/renderer/i18n/locales/es.json
index 3afaad8..4458651 100644
--- a/src/renderer/i18n/locales/es.json
+++ b/src/renderer/i18n/locales/es.json
@@ -510,6 +510,7 @@
   "editor.insertMediaTitle": "Insertar imagen desde la biblioteca multimedia",
   "editor.previewFrameTitle": "Vista previa de la entrada",
   "editor.previewLoading": "Cargando vista previa...",
+  "editor.metadata.toggle": "Metadatos",
   "editor.footer.created": "Creado",
   "editor.footer.updated": "Actualizado",
   "editor.footer.published": "Publicado",
diff --git a/src/renderer/i18n/locales/fr.json b/src/renderer/i18n/locales/fr.json
index 9638a0b..98431b4 100644
--- a/src/renderer/i18n/locales/fr.json
+++ b/src/renderer/i18n/locales/fr.json
@@ -507,7 +507,8 @@
   "editor.insertPostLinkTitle": "Lier à un article (Ctrl+K)",
   "editor.insertMediaTitle": "Insérer une image depuis la bibliothèque média",
   "editor.previewFrameTitle": "Aperçu de l’article",
-  "editor.previewLoading": "Chargement de l’aperçu...",
+  "editor.previewLoading": "Chargement de l'aperçu...",
+  "editor.metadata.toggle": "Métadonnées",
   "editor.footer.created": "Créé",
   "editor.footer.updated": "Mis à jour",
   "editor.footer.published": "Publié",
diff --git a/src/renderer/i18n/locales/it.json b/src/renderer/i18n/locales/it.json
index aba7a37..6abde03 100644
--- a/src/renderer/i18n/locales/it.json
+++ b/src/renderer/i18n/locales/it.json
@@ -508,6 +508,7 @@
   "editor.insertMediaTitle": "Inserisci immagine dalla libreria media",
   "editor.previewFrameTitle": "Anteprima post",
   "editor.previewLoading": "Caricamento anteprima...",
+  "editor.metadata.toggle": "Metadati",
   "editor.footer.created": "Creato",
   "editor.footer.updated": "Aggiornato",
   "editor.footer.published": "Pubblicato",
diff --git a/tests/renderer/components/EditorMetadataCollapse.test.tsx b/tests/renderer/components/EditorMetadataCollapse.test.tsx
new file mode 100644
index 0000000..e04aa6f
--- /dev/null
+++ b/tests/renderer/components/EditorMetadataCollapse.test.tsx
@@ -0,0 +1,231 @@
+import React from 'react';
+import { describe, it, expect, beforeEach, vi } from 'vitest';
+import { render, act, fireEvent } from '@testing-library/react';
+
+vi.mock('@monaco-editor/react', () => ({
+  default: () => <div data-testid="monaco-editor" />,
+}));
+
+vi.mock('@milkdown/kit/core', () => {
+  const makeChain = () => {
+    const chain = {
+      config: (callback: (ctx: { set: () => void; get: () => { markdownUpdated: () => void } }) => void) => {
+        callback({
+          set: () => {},
+          get: () => ({
+            markdownUpdated: () => {},
+          }),
+        });
+        return chain;
+      },
+      use: () => chain,
+    };
+    return chain;
+  };
+
+  return {
+    Editor: { make: makeChain },
+    defaultValueCtx: Symbol('defaultValueCtx'),
+    editorViewCtx: Symbol('editorViewCtx'),
+    rootCtx: Symbol('rootCtx'),
+    remarkStringifyOptionsCtx: Symbol('remarkStringifyOptionsCtx'),
+    remarkPluginsCtx: Symbol('remarkPluginsCtx'),
+  };
+});
+
+vi.mock('@milkdown/kit/preset/commonmark', () => ({
+  commonmark: {},
+  toggleStrongCommand: { key: 'toggleStrong' },
+  toggleEmphasisCommand: { key: 'toggleEmphasis' },
+  wrapInBlockquoteCommand: { key: 'wrapInBlockquote' },
+  wrapInBulletListCommand: { key: 'wrapInBulletList' },
+  wrapInOrderedListCommand: { key: 'wrapInOrderedList' },
+  insertHrCommand: { key: 'insertHr' },
+  toggleInlineCodeCommand: { key: 'toggleInlineCode' },
+  insertImageCommand: { key: 'insertImage' },
+  toggleLinkCommand: { key: 'toggleLink' },
+}));
+
+vi.mock('@milkdown/kit/preset/gfm', () => ({
+  gfm: {},
+  toggleStrikethroughCommand: { key: 'toggleStrike' },
+}));
+
+vi.mock('@milkdown/kit/plugin/history', () => ({
+  history: {},
+  undoCommand: { key: 'undo' },
+  redoCommand: { key: 'redo' },
+}));
+
+vi.mock('@milkdown/kit/plugin/listener', () => ({
+  listener: {},
+  listenerCtx: Symbol('listenerCtx'),
+}));
+
+vi.mock('@milkdown/kit/plugin/clipboard', () => ({ clipboard: {} }));
+vi.mock('@milkdown/kit/plugin/trailing', () => ({ trailing: {} }));
+vi.mock('@milkdown/kit/plugin/indent', () => ({ indent: {} }));
+vi.mock('@milkdown/kit/plugin/cursor', () => ({ cursor: {} }));
+
+vi.mock('@milkdown/kit/utils', () => ({
+  $node: () => ({}),
+  $inputRule: () => ({}),
+  $remark: () => ({}),
+  $prose: () => ({}),
+  replaceAll: () => () => {},
+  callCommand: () => () => {},
+}));
+
+vi.mock('@milkdown/react', () => ({
+  Milkdown: () => <div data-testid="milkdown" />,
+  MilkdownProvider: ({ children }: { children: React.ReactNode }) => <>{children}</>,
+  useInstance: () => [false, () => ({ action: (action: unknown) => {
+    if (typeof action === 'function') {
+      action({ get: () => ({}) });
+    }
+  } })] as const,
+  useEditor: (factory: (root: Node) => unknown) => {
+    factory(document.createElement('div'));
+  },
+}));
+
+vi.mock('../../../src/renderer/components/Lightbox', () => ({
+  Lightbox: () => null,
+  useMarkdownImages: () => [],
+}));
+vi.mock('../../../src/renderer/components/PostLinks', () => ({ PostLinks: () => null }));
+vi.mock('../../../src/renderer/components/LinkedMediaPanel', () => ({ LinkedMediaPanel: () => null }));
+vi.mock('../../../src/renderer/components/ErrorModal', () => ({ ErrorModal: () => null }));
+vi.mock('../../../src/renderer/components/ConfirmDeleteModal', () => ({ ConfirmDeleteModal: () => null }));
+vi.mock('../../../src/renderer/components/SettingsView', () => ({ SettingsView: () => null }));
+vi.mock('../../../src/renderer/components/TagsView', () => ({ TagsView: () => null }));
+vi.mock('../../../src/renderer/components/TagInput', () => ({ TagInput: () => null }));
+vi.mock('../../../src/renderer/components/ChatPanel', () => ({ ChatPanel: () => null }));
+vi.mock('../../../src/renderer/components/ImportAnalysisView', () => ({ ImportAnalysisView: () => null }));
+vi.mock('../../../src/renderer/components/MetadataDiffPanel', () => ({ MetadataDiffPanel: () => null }));
+vi.mock('../../../src/renderer/components/GitDiffView/GitDiffView', () => ({ GitDiffView: () => null }));
+vi.mock('../../../src/renderer/components/InsertModal', () => ({ InsertModal: () => null }));
+vi.mock('../../../src/renderer/components/AISuggestionsModal/AISuggestionsModal', () => ({
+  AISuggestionsModal: () => null,
+}));
+vi.mock('../../../src/renderer/components/Toast', () => ({
+  showToast: {
+    success: vi.fn(),
+    error: vi.fn(),
+  },
+}));
+
+import { PostEditor } from '../../../src/renderer/components/Editor/Editor';
+import { useAppStore } from '../../../src/renderer/store';
+
+const createPost = (overrides: Record<string, unknown> = {}) => ({
+  id: 'post-1',
+  title: 'Test Post',
+  content: 'Some content',
+  excerpt: '',
+  slug: 'test-post',
+  status: 'draft' as const,
+  tags: ['tag1'],
+  categories: ['article'],
+  featuredImage: null,
+  publishedAt: null,
+  createdAt: new Date('2026-02-16T12:00:00.000Z'),
+  updatedAt: new Date('2026-02-16T12:00:00.000Z'),
+  author: undefined,
+  metadata: {},
+  seoTitle: undefined,
+  seoDescription: undefined,
+  canonicalUrl: undefined,
+  projectId: 'project-1',
+  filePath: 'posts/test-post.md',
+  ...overrides,
+});
+
+describe('Editor metadata collapse', () => {
+  beforeEach(() => {
+    vi.clearAllMocks();
+    const neverSettles = new Promise<never>(() => {});
+
+    (window as any).addEventListener = vi.fn();
+    (window as any).removeEventListener = vi.fn();
+
+    (window as any).electronAPI.posts.hasPublishedVersion = vi.fn().mockReturnValue(neverSettles);
+    (window as any).electronAPI.posts.update = vi.fn().mockResolvedValue(null);
+    (window as any).electronAPI.posts.getPreviewUrl = vi.fn().mockResolvedValue('http://127.0.0.1:4123/preview');
+    (window as any).electronAPI.meta.getCategories = vi.fn().mockReturnValue(neverSettles);
+
+    useAppStore.setState({
+      preferredEditorMode: 'wysiwyg',
+      posts: [],
+      media: [],
+      dirtyPosts: new Set<string>(),
+      isLoading: false,
+    });
+  });
+
+  it('collapses metadata for existing posts (non-empty title)', async () => {
+    (window as any).electronAPI.posts.get = vi.fn().mockResolvedValue(createPost({ title: 'Existing Post' }));
+
+    const { container } = render(<PostEditor postId="post-1" />);
+
+    await act(async () => {
+      await Promise.resolve();
+      await Promise.resolve();
+      await Promise.resolve();
+    });
+
+    const headerRow = container.querySelector('.editor-header-row');
+    expect(headerRow).toBeNull();
+
+    const toggle = container.querySelector('.metadata-toggle');
+    expect(toggle).not.toBeNull();
+  });
+
+  it('expands metadata for new posts (empty title)', async () => {
+    (window as any).electronAPI.posts.get = vi.fn().mockResolvedValue(createPost({ title: '' }));
+
+    const { container } = render(<PostEditor postId="post-1" />);
+
+    await act(async () => {
+      await Promise.resolve();
+      await Promise.resolve();
+      await Promise.resolve();
+    });
+
+    const headerRow = container.querySelector('.editor-header-row');
+    expect(headerRow).not.toBeNull();
+
+    const toggle = container.querySelector('.metadata-toggle');
+    expect(toggle).not.toBeNull();
+    expect(toggle?.classList.contains('expanded')).toBe(true);
+  });
+
+  it('toggles metadata visibility on click', async () => {
+    (window as any).electronAPI.posts.get = vi.fn().mockResolvedValue(createPost({ title: 'Existing Post' }));
+
+    const { container } = render(<PostEditor postId="post-1" />);
+
+    await act(async () => {
+      await Promise.resolve();
+      await Promise.resolve();
+      await Promise.resolve();
+    });
+
+    // Initially collapsed for existing post
+    expect(container.querySelector('.editor-header-row')).toBeNull();
+
+    const toggle = container.querySelector('.metadata-toggle')!;
+
+    // Click to expand
+    await act(async () => {
+      fireEvent.click(toggle);
+    });
+    expect(container.querySelector('.editor-header-row')).not.toBeNull();
+
+    // Click to collapse again
+    await act(async () => {
+      fireEvent.click(toggle);
+    });
+    expect(container.querySelector('.editor-header-row')).toBeNull();
+  });
+});