Andrew Nacin

Create simple, elegant footnotes on your site. Use the <code>[ref]</code> shortcode and the plugin takes care of the rest.
Example usage: <code>Lorem ipsum. [ref]My note.[/ref]</code>
If you paginate your posts, you can optionally move your footnotes below your page links. Look under Settings > Reading. Footnotes will still appear as normal for posts that are unpaginated.

Simple Footnotes

Create simple, elegant footnotes on your site. Use the [ref] shortcode and the plugin takes care of the rest.

acusti

The <a href="https://wordpress.org/plugins/simple-footnotes/" rel="ugc">Simple Footnotes</a> plugin allows you to add simple, elegant footnotes on your site.
This tiny plugin makes it incredibly simple to create those footnotes, leaving nothing to teach the site’s editors (no need to explain shortcodes or special syntaxes). It adds a button to the TinyMCE editor toolbar in the second row (i.e. the “Kitchen Sink”) that users can click to open a textarea overlay where they can enter the footnote content and then insert it into the editor with the proper syntax.
<h3>Translation</h3>
<ul>
<li>French</li>
</ul>

Simple Footnotes Editor Button

Add a button to the TinyMCE editor toolbar to make it easy for users to add footnotes with the proper syntax for the Simple Footnotes plugin.

Simple Footnotes vs Simple Footnotes Editor Button