This plugin will convert every word that occurs in a post title or content into a term (tag). By default the plugin will add these terms to a new taxonomy called “words”. Optionally, the terms can be added to the “post_tags” taxonomy, used for normal tagging in WordPress.
The plugin provides the option to create a so-called stop list. Words in this list will be kept (or even removed) from the taxonomy. This allows authors to ignore meaningless, but often occuring, words like ‘a’ or ‘the’.
This plugin makes sure that the tags will actually cover a blog’s content. This is great in combination with tag-clouds as the tag-clouds will better show what the blog is about.

Text2Tag

This plugin automatically converts title and post contents to tags.

thaikolja

Secondary Title is a simple, light-weight plugin that adds an alternative title to posts, pages, and/or <a href="https://codex.wordpress.org/Post_Types" rel="nofollow ugc">custom post types</a>, which can be displayed automatically, with a shortcode or by using PHP.
The plugin comes with an extra settings page, which allows you to customize the plugin according to your needs. You can change:
<ul>
<li><a href="https://codex.wordpress.org/Post_Types" rel="nofollow ugc">post types</a>, categories, and specific post IDs the secondary title will be 
shown on,</li>
<li>whether the secondary title should be automatically added to the standard title (Auto show),</li>
<li>the format both titles are being shown (only works when Auto show is activated),</li>
<li>the position where the secondary title input field should be displayed (above or below the standard title) within the admin interface (Classic Editor only),</li>
<li>whether the secondary title should only be displayed in the main post and not within widgets, etc.,</li>
<li>if the secondary title should be usable in <a href="https://codex.wordpress.org/Using_Permalinks" rel="nofollow ugc">permalinks</a>,</li>
<li>and even more.</li>
</ul>
Please see the <a href="https://docs.kolja-nolte.com/secondary-title/" rel="nofollow ugc">official website</a> for a full documentation.

Secondary Title

Earlier I marked it one star as everything had stopped working due to the error generated by the plugin. Turned out it was not due to the plugin but the malware attacked the admin area.

I am taking my words back and apologizing to the author of the plugin. As a developer myself I can feel his pain. Therefore I am reviewing my comment and updating it.

Once again, this is a great plugin for writing SEO based headings.

Works as expected


First off, this is great, it works very well, I'm super happy with it.



I did NOT however want to delve into making custom templates, what I wanted was to treat the subtitle field like the excerpt.  So I went to ChatGPT and said "make a wordpress plugin that replaces the content of the except with the content of a meta field"The only thing I had to change was the name of the field, which is _secondary_title.  I'd love to see this as an option in the plugin, the code is only about 10 lines.


I enchanced with ChatGPT

Secondary Title is a simple, lightweight plugin that allows you to easily add an alternative title to posts, pages, and/or custom post types.

Text2Tag vs Secondary Title