evert_mouw

This plugin sets the <code><title></code> tag in the <code><head></code> section of the HTML output.
First page / index page:
<pre><code>title = name of the website | subtitle (short description of the website)
</code></pre>
All other posts and pages:
<pre><code>title = title of the post/page | name of the website
</code></pre>
Notes:
<ul>
<li>The seperator is the default symbol, probably “|”.</li>
<li>Feeds only receive the page/post title and are not modified.</li>
<li>Page numbers are handled too.</li>
</ul>
The code is a very basic copy of:
<a href="https://codex.wordpress.org/Plugin_API/Filter_Reference/wp_title" rel="nofollow ugc">https://codex.wordpress.org/Plugin_API/Filter_Reference/wp_title</a>

Title Tag, Evert's simple version

This plugin sets the tag in the section of the HTML output.

domclic

Effortless Custom SEO Meta allows you to easily manage SEO titles and meta descriptions for your posts and pages. 
You can edit them directly from the post/page editor sidebar or via Quick Edit on the post/page list.
Features:
<ul>
<li>Add SEO Title and Meta Description for posts and pages.</li>
<li>Edit SEO metadata directly in Quick Edit.</li>
<li>Fully uses WordPress native UI/UX.</li>
<li>Saves your SEO metadata to post_meta (elcsm_seo_title and elcsm_meta_desc).</li>
<li>Properly enqueued JavaScript following WordPress coding standards.</li>
<li>Translation ready with text domain support.</li>
<li>Fully compatible with WordPress multisite setups.</li>
<li>Network activatable for multisite installations.</li>
<li>Per-site configuration in multisite environments.</li>
</ul>
<h3>License</h3>
This plugin is licensed under the GPLv2 or later.
<h3>Translation</h3>
The plugin is translation ready. To translate:
<ol>
<li>Create a /languages/ directory in the plugin folder if it doesn’t exist.</li>
<li>Use Poedit or similar tool to create .po and .mo files.</li>
<li>Name your files: effortless-custom-seo-meta-{locale}.po and effortless-custom-seo-meta-{locale}.mo</li>
<li>Place them in the /languages/ directory.</li>
</ol>
Example: effortless-custom-seo-meta-es_ES.po for Spanish (Spain).

Effortless Custom SEO Meta

Add SEO Title and Meta Description to posts and pages with Quick Edit support, fully integrated into WordPress native UI/UX.

Title Tag, Evert's simple version vs Effortless Custom SEO Meta