Arunas Liuiza

A tiny and simple to help with navigation in long texts by forming an automatic Wikipedia-like table of contents.
It works by scanning the text for headings (<code><h1>-<h6></code> HTML tags). If more than a certain amount of headings (3 by default) are found – a table of contents with bookmarks is formed and inserted to the post content. Location (above or below) the text can be chosen in settings page.
TOC is formed as HTML5 <code><nav></code> element with nested ordered list inside. No specific styling is provided, so that it fits organicaly into the text. If you need specific styling, include it to your theme’s CSS.
You can also use a shortcode – <code>[toc]</code>, template tags – <code>get_toc()</code>/<code>the_toc()</code> and a widget – <code>tinyTOC Widget</code>.
The plugin is translation ready and has Lithuanian translation.
Also try out my other plugins:
<ul>
<li><a href="http://arunas.co/cc" rel="nofollow ugc">Content Cards</a> – a plugin that makes ordinary web links great by making it possible to embed a beautiful Content Card to link to any web site.</li>
<li><a href="http://arunas.co/gust" rel="nofollow ugc">Gust</a> – a Ghost-like admin panel for WordPress, featuring Markdown based split-view editor.</li>
<li><a href="http://arunas.co/tinycoffee" rel="nofollow ugc">tinyCoffee</a> – a PayPal donations button with a twist. Ask people to treat you to a coffee/beer/etc. </li>
<li><a href="http://arunas.co/tinysocial" rel="nofollow ugc">tinySocial</a> – a plugin to display social sharing links to Facebook/Twitter/etc. via shortcodes</li>
<li><a href="http://arunas.co/tinyrelated" rel="nofollow ugc">tinyRelated</a> – a plugin to manually assign and display related posts.</li>
<li><a href="http://arunas.co/tinyip" rel="nofollow ugc">tinyIP</a> – Premium – stop WordPress users from sharing login information, force users to be logged in only from one device at a time.</li>
</ul>
An enormous amount of coffee was consumed while developing these plugins, so if you like what you get, please consider treating me to a <a href="http://arunas.co#coffee" rel="nofollow ugc">cup</a>. Or two. Or ten.
Cover image credit: <a href="https://www.flickr.com/photos/adactio/1523797880/" rel="nofollow ugc">Jeremy Keith</a>

tinyTOC

Automaticly builds a Table of Contents using headings (h1-h6) in post/page/CPT content.

Stefan Matei

If your subheadings appear on archive pages, they need to start from H3 (because H2 tags are used by the post titles on archive pages).
This plugin dynamically corrects subheadings before they are displayed on your site — for SEO and semantic markup purposes.
You will be able to select one of the following two options (the first one being the default):
<ul>
<li>
My subheadings start from the H2 level: turn them down a level on archive pages. 
H2’s become H3’s, H3’s become H4’s, H4’s become H5’s, H5’s become H6’s and H6’s become paragraphs
</li>
<li>
My subheadings start from the H3 level: turn them up a level on single posts or pages. 
H3’s become H2’s, H4’s become H3’s, H5’s become H4’s and H6’s become H5’s
</li>
</ul>
This plugin does not make any changes to your database: the subheadings will only be displayed differently on the front-end site. 
If you disable the plugin or decide to uninstall it everything will be back to normal.
Visit the <a href="http://www.vileworks.com/correct-my-headings" title="Correct My Headings" rel="nofollow ugc">plugin page</a> on VileWorks.com.

Correct My Headings

If your subheadings appear on archive pages, they need to start from H3 (because H2 tags are used by the post titles on archive pages).

tinyTOC vs Correct My Headings