Directionality plugin

This plugin adds directionality controls to the toolbar, enabling TinyMCE to better handle languages written from right to left. It also adds a toolbar button for each of its values, ltr for left-to-right text and rtl for right-to-left text.

Basic setup

tinymce.init({
  selector: 'textarea',  // change this value according to your HTML
  plugins: 'directionality',
  toolbar: 'ltr rtl'
});