Use this CDN link in your HTML(This only has the free icons of Font Awesome :)
<head>
<link rel="stylesheet" href="https://fontawesome.com/releases/v5.15/css/all.css"/>
</head>
<body>
<i class="fab fa-google"></i>
</body> <link rel="stylesheet" href="https://use.fontawesome.com/releases/v5.15.4/css/all.css"><i class="fa fa-user-circle" aria-hidden="true"></i>
<i class="fa fa-exclamation-circle" aria-hidden="true"></i>
<i class="fa fa-check-circle-o" aria-hidden="true"></i><i class="fa fa-address-book" aria-hidden="true"></i>
<i class="fa fa-check-circle-o" aria-hidden="true"></i><i class="fa fa-check-circle-o" aria-hidden="true"></i><i class="fa fa-chevron-right" aria-hidden="true"></i><i class="fa fa-check-circle-o" aria-hidden="true"></i><i class="fa fa-check-circle-o" aria-hidden="true"></i><i class="fa fa-check-circle-o" aria-hidden="true"></i><i class="fa fa-hand-pointer-o" aria-hidden="true"></i>
<!DOCTYPE html>
<html>
<head>
<title>Page Title</title>
<link rel="stylesheet" href="https://use.fontawesome.com/releases/v5.5.0/css/all.css" integrity="sha384-B4dIYHKNBt8Bc12p+WXckhzcICo0wtJAoU8YZTY5qE0Id1GSseTk6S+L3BlXeVIU" crossorigin="anonymous">
</head>
<body>
<i class='fas fa-greater-than'></i>
</body>
</html><i class="fa fa-check-circle-o" aria-hidden="true"></i>font awesome<i class="fa fa-check-circle-o" aria-hidden="true"></i>