MicroEdit

<link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/font-awesome/4.7.0/css/font-awesome.min.css">
<script src="https://code.jquery.com/jquery-3.6.0.min.js"></script>

$(document).ready(function(){
  $('#myEditor').microEdit({
    controls: ['undo', 'redo', '|', 'bold', 'italic', 'underline', '|', 'code'],
    height: '300px',
    width: '100%',
    borderColor: '1px solid #999',
    denyLinks: true,
    commandsAlign: 'center'
  });
});

var html = $('#myEditor').microEdit('getHTML');

var len = $('#myEditor').microEdit('getHTMLcharCount');