f13dev

Generate a table of contents based on header tags within the post. Outputs an indented list of anchor links at the top of each page or post linking to the relevant header tag.
Tabe of Contents does not require any configuration. On page or post loading, the content is examined for header tags that can be used to generate a ToC. If the header tag does not have an ID attribute one will be added for the purposes of linking, otherwise the existing ID tag will be used.
<a href="https://f13.dev/wordpress-plugin-table-of-contents/" rel="nofollow ugc">Read more about F13-TOC</a>

F13 Table of Contents

Add a Table of Contents with internal anchor links, built automatically from header tags.

turtlepod

<a href="http://genbumedia.com/plugins/fx-toc/" rel="nofollow ugc">f(x) TOC</a> Simple Table Of Contents Plugin. Just add [toc] shortcode in content to display. This plugin will parse and grab all heading (h1 -h6) in your content and display it as structured table of contents (just like WikiPedia.org table of contents).
Features:
<ol>
<li>Super simple and easy to use.</li>
<li>Auto create Table of contents by listing all your headings in your content.</li>
<li>The GPL v2.0 or later license. 🙂 Use it to make something cool.</li>
<li>Support available at <a href="http://genbumedia.com/contact/?about=f(x)+TOC" rel="nofollow ugc">Genbu Media</a>.</li>
</ol>
Shortcode Options:
You can use several options in [toc] shortcode:
<ol>
<li>title: to change the title of table of contents, as default is <code>Table of contents</code>.</li>
<li>title_tag: element wrapper for the title, the default is <code>h2</code>.</li>
<li>list: you can use <code>ul</code> for unordered list (default), or <code>ol</code> for ordered list.</li>
<li>depth: list depth (numeric). the default is <code>6</code>.</li>
</ol>
Advance usage example using all the options:
[toc title=”This page content:” title_tag=”strong” list=”ol” depth=”1″] 
Notes for developer:
<h4>Github</h4>
Development of this plugin is hosted at <a href="https://github.com/turtlepod/fx-toc" rel="nofollow ugc">GitHub</a>. Pull request and bug reports are welcome.
<h4>Hooks</h4>
List of hooks available in this plugin:
filter: <code>fx_toc_default_args</code> (array)
The default option for the shortcode.
filter: <code>fx_toc_output</code> (string)
HTML output of the shortcode.

f(x) TOC

Simple Table Of Contents Plugin. Just add [toc] shortcode in content to display.

F13 Table of Contents vs f(x) TOC