maurobringolf

This plugin gives you a shortcode to make numbered references to footnotes, directly from your post content. Footnotes are listed and enumerated automatically at the end of your post 
content, reusing all existing styles of your site. All references become anchor links guiding the user to the footnote section of the post.
We would love to hear and discuss your feedback in a <a href="https://wordpress.org/support/plugin/mnml-footnotes/reviews/" rel="ugc">review</a>. If you want to report a bug or have a feature request, please do so via the <a href="https://github.com/maurobringolf/mnml-footnotes" rel="nofollow ugc">GitHub repository</a>.
<h3>Usage</h3>
To make a new footnote reference in your content you can use the shortcode mnml_footnote in the following way:
This is your regular post content and the shortcode by this plugin looks like this [mnml_footnote] Easy, right? [/mnml_footnote]
Everything inside the shortcode will be moved into a footnote and replaced by a numbered reference link to it. In this example the footnote content would be “Easy, right?”.

MNML Footnotes

Corrado Franco

This plugin allows one to create footnotes by using markdown notation. 
It is for footnotes only. No other markdown tag is taken into account
Example:
<pre><code>I have more [^1] to say up here.

[^1]: To say down here.
</code></pre>
If used with jetpack and enabled markdown, it only shows the buttons without modifying the text content. 
Unlike jetpack-markdown, footnotes will appear in the exact point where they have been inserted. To go back to text mode click on the footnote number.
N.B 
This plugin also works with Gutenberg. But the button only appears in the Classic Editor. 
For now with Gutenberg enter the codes directly.
<h3>Configuration</h3>
No configuration is necessary.
Considering that this plugin, like others working with “markdown”, parsing the page every time I load it, I highly recommend using a caching plugin.

Blank Footnotes

Simple plugin to show footnotes using markdown notation.

MNML Footnotes vs Blank Footnotes