Fabio M. Giacomini

<p>This plugin adds a new field in every post, where you can write a text that will be inserted in the related meta tag, located in the head section.</p>
<p>The main options page of the plugin, provides you with a default text area, where you can insert a default description that will appear in case the field in post page is empty.</p>


Single Post Meta Description

The easiest way to add in every post page a different meta description tag, located in html head.

Seodev

<p>SEO Tool which replace titles on selected pages and posts. Also adds ability for meta description.</p>
<h3>Important note</h3>
<p>This plugin uses “Session Buffering” to work with some websites (for forcing replacement of titles). This means that if your host / web server uses a cache service there is a possibility that a conflict might occur. We give no support regarding host / web server support to avoid this.</p>
<h3>Planned changes</h3>
<p>In the future we plan to change the backend overview and settings page so it will use WP Table structure instead for better handling.</p>


S-DEV SEO

SEO Tool which replace titles on selected pages and posts. Also adds ability for meta description.

Single Post Meta Description vs S-DEV SEO