Icon.js is the easy library for icons. It's an alternative of Iconify. It uses the
Include it through the CDN
<script src="https://cdn.jsdelivr.net/gh/GrahamSH-LLK/icon.js/icon.js"></script>Download the file from https://cdn.jsdelivr.net/gh/GrahamSH-LLK/icon.js/icon.js to your directory. Include it like this:
<script src="/path/to/icon.js"></script>