digrart

<p>This plugin allows you to add a meta description to each post, page, or custom post type as well as archives and taxonomies directly from the WordPress editor. Simplify SEO for your WordPress site without any extra fluff.</p>


dig Description

Just the Meta Description. / 投稿ページやアーカイブページに、ただディスクリプションを設定できるだけのプラグインです。

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.

dig Description vs S-DEV SEO