Preview plugin

This plugin adds a preview button to the toolbar. Pressing the button opens a dialog box showing the current content in a preview mode. It also adds a menu item Preview under the File and View menu dropdowns.

Basic setup

tinymce.init({
  selector: 'textarea',  // change this value according to your HTML
  plugins: 'preview',
  menubar: 'view',
  toolbar: 'preview'
});