Utiltity to convert htm

        <textarea id="txtIn" rows="10" style="width:90%" onchange="onChange()"></textarea> <!--
        <br />
        <textarea id="txtOut" rows="10" style="width:90%"></textarea>
        <br />
        <input type="button" onclick="convert();" value="Convert" /> -->
        <script>
        function escapeHTML (str)
        {
        var div = document.createElement('div');
        var text = document.createTextNode(str);
        div.appendChild(text);
        return div.innerHTML;
        };

        function convert()
        {
        document.getElementById("txtOut").value = escapeHTML(document.getElementById("txtIn").value);
        }
          
          function onChange() {
            const html = escapeHTML(document.getElementById("txtIn").value);
            navigator.clipboard.writeText(html);
            
          }
        </script>