let text= document.getElementsByTagName('body')[0].innerHTML; let regExp = /<[a-zA-Z\/][^>]*>[a-zA-Z0-9&._ -]*<[a-zA-Z\/][^>]*>|<[a-zA-Z\/][^>]*>/g; let formattedText= text.replace(regExp, '');
formattedText will be your output
formattedText