Kumbh Design Inc.

<p>You can set meta tags like keyword, description. You can customize on each individual page/post as well.</p>
<h3>Features</h3>
<ul>
<li>FREE Plugin.</li>
<li>One click to Install.</li>
<li>Simple and Easy to Use</li>
<li>Do not need to edit your theme’s core files.</li>
<li>Quick and supportive.</li>
</ul>


WP Simple Meta Tags

Allows you to set meta tags like keyword, description and you can customize on each individual page/post.

Vito Tardia

<p>With Simple SEO you can set your custom content for the “keywords” and “description” meta tags in each post or page using the standard WordPress metabox interface.</p>
<p>You can also set default values for each meta tag which will be displayed in all your pages, although this is not a SEO best practice.</p>
<h4>Available languages</h4>
<ul>
<li>English</li>
<li>Italian</li>
<li>Romanian by Web Geek Science (<a href="http://webhostinggeeks.com/" rel="nofollow ugc">Web Hosting Geeks</a>)</li>
<li>Serbo-Croatian by Borisa Djuraskovic (<a href="http://www.webhostinghub.com/" rel="nofollow ugc">Webhostinghub</a>)</li>
<li>Ukrainian by Michael Yunat (<a href="//getvoip.com/blog" rel="nofollow ugc">http://getvoip.com</a>)</li>
<li>Indonesian by Jordan Silaen (<a href="//chameleonjohn.com" rel="nofollow ugc">http://chameleonjohn.com</a>)</li>
</ul>
<h3>Manual Database Update</h3>
<p>In order to update your database you can run the following queries using your favorite MySQL admin tool, changing your table prefix if needed (a backup is strongly recomended).</p>
<pre><code>UPDATE wp_postmeta SET meta_key = '_sseo_meta_keywords' WHERE meta_key = 'meta_keywords';

UPDATE wp_postmeta SET meta_key = '_sseo_meta_description' WHERE meta_key = 'meta_description';
</code></pre>


Simple SEO Pack

Simple SEO is a quick way to add HTML meta tags to your site and pages using WP integrated custom fields feature.

WP Simple Meta Tags vs Simple SEO Pack