senewe

The Sengeku Meta Description Manager plugin provides a simple and elegant solution for managing meta descriptions on WordPress websites. With a user-friendly meta box in the editor sidebar, you can create individual meta descriptions for each post and page that will be displayed in search engines.
<h4>Key Features</h4>
<ul>
<li>Elegant Meta Box in the editor sidebar</li>
<li>Real-time character counter with visual warning when exceeding 160 characters</li>
<li>Live preview of the meta description</li>
<li>Overview column in the posts/pages list</li>
<li>Quick Edit function for fast adjustments</li>
<li>Support for all post types (Posts, Pages, Custom Post Types)</li>
<li>Translation ready (German/English prepared)</li>
<li>No configuration required – just activate and start using</li>
</ul>
<h4>Why Meta Descriptions Matter</h4>
While meta descriptions do not directly influence rankings, they: 
* Increase click-through rate (CTR) in search results 
* Give users a first impression of your page 
* Are used by Google as snippet text
<h4>For Developers</h4>
The plugin is cleanly coded following WordPress Coding Standards and can be easily extended.

Sengeku Meta Description Manager

A lightweight meta description manager with an elegant interface and character counter for optimal SEO results.

FolioVision

Simple plugin which allows you to mass edit the description fields of your choice. In current version of the plugin it is possible to mass edit except the description fields also titles of pages, posts and categories and for posts it is additionally possible to edit keywords
<a href="http://foliovision.com/seo-tools/wordpress/plugins/foliopress-descriptions" rel="nofollow ugc">Support</a>
Supported description fields:
<ul>
<li>All In One SEO Meta Description</li>
<li>Thesis description</li>
<li>WordPress post excerpt</li>
</ul>

FV Descriptions

Simple plugin which allows you to mass edit the description fields of your choice.

Sengeku Meta Description Manager vs FV Descriptions