diff --git a/src/renderer/components/modals/ExportHtmlDialog.tsx b/src/renderer/components/modals/ExportHtmlDialog.tsx
new file mode 100644
index 0000000..a9b53a7
--- /dev/null
+++ b/src/renderer/components/modals/ExportHtmlDialog.tsx
@@ -0,0 +1,79 @@
+import { useState } from 'react';
+import { Dialog, DialogContent, DialogDescription, DialogHeader, DialogTitle } from '@/components/ui/dialog';
+import { Checkbox } from '@/components/ui/checkbox';
+import { Label } from '@/components/ui/label';
+import { Select, SelectContent, SelectItem, SelectTrigger, SelectValue } from '@/components/ui/select';
+import { useAppStore } from '@/stores/app-store';
+import { useSettingsStore } from '@/stores/settings-store';
+import { useExportSource } from '@/hooks/use-export-source';
+import { ipc } from '@/lib/ipc';
+import { ExportDialogFooter } from './ExportDialogFooter';
+
+export function ExportHtmlDialog({ sourcePath }: { sourcePath: string }) {
+  const closeModal = useAppStore((s) => s.closeModal);
+  const { htmlHighlightStyle, renderTablesAsAscii } = useSettingsStore();
+  const source = useExportSource();
+  const [standalone, setStandalone] = useState(true);
+  const [highlight, setHighlight] = useState(htmlHighlightStyle);
+  const [ascii, setAscii] = useState(renderTablesAsAscii);
+  const [submitting, setSubmitting] = useState(false);
+  const [error, setError] = useState<string | null>(null);
+
+  const handleSubmit = async () => {
+    if (!source) { setError('No file open.'); return; }
+    setSubmitting(true);
+    setError(null);
+    const result = await ipc.export.html({
+      inputPath: source.path,
+      outputPath: source.path.replace(/\.md$/, '.html'),
+      standalone,
+      highlightStyle: highlight,
+      renderTablesAsAscii: ascii,
+    } as any);
+    if (!result.ok) {
+      setError(result.error.message);
+      setSubmitting(false);
+    } else {
+      closeModal();
+    }
+  };
+
+  return (
+    <Dialog open onOpenChange={(o) => !o && closeModal()}>
+      <DialogContent aria-describedby="html-desc">
+        <DialogHeader>
+          <DialogTitle>Export to HTML</DialogTitle>
+          <DialogDescription id="html-desc">{sourcePath}</DialogDescription>
+        </DialogHeader>
+        <div className="space-y-3 text-sm">
+          <label className="flex items-center gap-2">
+            <Checkbox checked={standalone} onCheckedChange={(c) => setStandalone(!!c)} aria-label="Standalone" />
+            Standalone document (with inline CSS)
+          </label>
+          <div>
+            <Label htmlFor="html-highlight">Syntax highlight style</Label>
+            <Select value={highlight} onValueChange={(v) => setHighlight(v as any)}>
+              <SelectTrigger id="html-highlight" aria-label="Highlight style"><SelectValue /></SelectTrigger>
+              <SelectContent>
+                <SelectItem value="github">GitHub</SelectItem>
+                <SelectItem value="monokai">Monokai</SelectItem>
+                <SelectItem value="nord">Nord</SelectItem>
+                <SelectItem value="none">None</SelectItem>
+              </SelectContent>
+            </Select>
+          </div>
+          <label className="flex items-center gap-2">
+            <Checkbox checked={ascii} onCheckedChange={(c) => setAscii(!!c)} aria-label="ASCII tables" />
+            Render tables as ASCII
+          </label>
+          {error && (
+            <div role="alert" className="rounded border border-destructive/40 bg-destructive/5 p-2 text-xs text-destructive">
+              {error}
+            </div>
+          )}
+        </div>
+        <ExportDialogFooter onCancel={closeModal} onSubmit={handleSubmit} submitting={submitting} submitLabel="Export" />
+      </DialogContent>
+    </Dialog>
+  );
+}
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diff --git a/tests/component/modals/ExportHtmlDialog.test.tsx b/tests/component/modals/ExportHtmlDialog.test.tsx
new file mode 100644
index 0000000..12c6131
--- /dev/null
+++ b/tests/component/modals/ExportHtmlDialog.test.tsx
@@ -0,0 +1,36 @@
+import { describe, it, expect, vi, beforeEach } from 'vitest';
+import { render, screen } from '@testing-library/react';
+import userEvent from '@testing-library/user-event';
+import { ExportHtmlDialog } from '@/components/modals/ExportHtmlDialog';
+import { useFileStore } from '@/stores/file-store';
+import { useEditorStore } from '@/stores/editor-store';
+import { useSettingsStore } from '@/stores/settings-store';
+
+describe('ExportHtmlDialog', () => {
+  beforeEach(() => {
+    localStorage.clear();
+    window.electronAPI = {
+      export: { html: vi.fn().mockResolvedValue({ ok: true, data: { outputPath: '/out.html' } }) },
+    } as any;
+    useSettingsStore.setState(useSettingsStore.getInitialState());
+    useFileStore.setState({ activeTabId: '/test.md', openTabs: [{ id: '/test.md', path: '/test.md', title: 'test.md', dirty: false }] } as any);
+    useEditorStore.setState({ buffers: new Map([['/test.md', { id: '/test.md', path: '/test.md', content: '# hi', dirty: false }]]) } as any);
+  });
+
+  it('renders with default github highlight style', () => {
+    render(<ExportHtmlDialog sourcePath="/test.md" />);
+    expect(screen.getByText(/export to html/i)).toBeInTheDocument();
+  });
+
+  it('toggles standalone and submits with chosen highlight', async () => {
+    render(<ExportHtmlDialog sourcePath="/test.md" />);
+    await userEvent.click(screen.getByRole('checkbox', { name: /standalone/i }));
+    await userEvent.click(screen.getByRole('checkbox', { name: /standalone/i }));
+    await userEvent.click(screen.getByRole('combobox', { name: /highlight/i }));
+    await userEvent.click(screen.getByRole('option', { name: /monokai/i }));
+    await userEvent.click(screen.getByRole('button', { name: /^export$/i }));
+    const call = (window.electronAPI.export.html as any).mock.calls[0][0];
+    expect(call.standalone).toBe(true);
+    expect(call.highlightStyle).toBe('monokai');
+  });
+});
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