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Quick start

Column extensions are included in StarterKit by default — no extra imports needed: 
import { StarterKit } from '@react-email/editor/extensions';
import { EditorProvider } from '@tiptap/react';

const extensions = [StarterKit];

export function MyEditor() {
  return <EditorProvider extensions={extensions} content={content} />;
}

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Inserting columns programmatically

Use the insertColumns command to add a column layout: 
// Insert a 2-column layout
editor.chain().focus().insertColumns(2).run();

// Insert a 3-column layout
editor.chain().focus().insertColumns(3).run();

// Insert a 4-column layout
editor.chain().focus().insertColumns(4).run();

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Building a toolbar

Here’s a complete example with a toolbar for inserting column layouts, using the slotBefore prop to position it above the editor: 
import { StarterKit } from '@react-email/editor/extensions';
import { EditorProvider, useCurrentEditor } from '@tiptap/react';
import { Columns2, Columns3, Columns4 } from 'lucide-react';

const extensions = [StarterKit];

function ToolbarButton({
  label,
  icon,
  onClick,
}: {
  label: string;
  icon?: React.ReactNode;
  onClick: () => void;
}) {
  return (
    <button type="button" onClick={onClick}>
      {icon}
      {label}
    </button>
  );
}

function Toolbar() {
  const { editor } = useCurrentEditor();
  if (!editor) return null;

  return (
    <div style={{ display: 'flex', gap: '8px', marginBottom: '16px' }}>
      <ToolbarButton
        label="2 columns"
        icon={<Columns2 size={16} />}
        onClick={() => editor.chain().focus().insertColumns(2).run()}
      />
      <ToolbarButton
        label="3 columns"
        icon={<Columns3 size={16} />}
        onClick={() => editor.chain().focus().insertColumns(3).run()}
      />
      <ToolbarButton
        label="4 columns"
        icon={<Columns4 size={16} />}
        onClick={() => editor.chain().focus().insertColumns(4).run()}
      />
    </div>
  );
}

export function MyEditor() {
  return (
    <EditorProvider
      extensions={extensions}
      content={content}
      slotBefore={<Toolbar />}
    />
  );
}
Use slotBefore to render custom UI above the editor, and useCurrentEditor() to access the editor instance from child components.

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Via slash commands

The default slash commands already include column layouts. Type / and search for “columns”:
  • Two Columns — TWO_COLUMNS
  • Three Columns — THREE_COLUMNS
  • Four Columns — FOUR_COLUMNS
See Slash Commands for setup details.