emojione
by JM note
HTML
<link rel="stylesheet" href="//cdnjs.cloudflare.com/ajax/libs/emojione/2.2.7/assets/css/emojione.min.css">
<script src="//cdnjs.cloudflare.com/ajax/libs/emojione/2.2.7/lib/js/emojione.min.js"></script>
<script>document.write(emojione.toImage('스마일 고양이 :smile_cat: 입니다.'));</script>