How to make use of it:

1. Load the wanted jQuery library and Font Awesome iconic font within the doc.

<script src="/path/to/cdn/jquery.slim.min.js"></script>
<link rel="stylesheet" href="/path/to/cdn/fontawesome/all.min.css" />

2. Download & unzip the package after which insert the next information into the doc.

<link rel="stylesheet" href="fontawesome-browser.css" />
<script src="fontawesome-browser.js"></script>

3. Create an input area with the data-fa-browser attribute.

<input type="text" placeholder="Select icon" data-fa-browser />

4. Attach the Font Awesome icon browser/picker to the input file.

$(function($) {
  $.fabrowser();
});

Font Awesome Icon Browser & Picker, Font Awesome Browser Plugin/Github

See Demo And Download