老蒋和他的小伙伴

LeTDK helps you manage your site’s TDK (Title, Description, Keywords) from a simple settings screen—no heavy SEO suite required.
Features
<ul>
<li>Homepage TDK — Custom homepage title, description, keywords, and title separator</li>
<li>Category TDK — SEO fields on category add/edit screens; falls back to the category name or description when empty</li>
<li>Post TDK — SEO meta box on posts; falls back to the post title or trimmed content when empty</li>
<li>Document title — Uses <code>pre_get_document_title</code> for front-end <code><title></code> output</li>
<li>Meta tags — Outputs <code>description</code> and optional <code>keywords</code></li>
<li>Social sharing (Open Graph) — Optional Open Graph and Twitter Card tags with a default share image</li>
<li>Robots meta — Optional control for archive indexing and robots directives</li>
<li>Master switch — Disable all front-end SEO output from this plugin when needed</li>
</ul>
Highlights
<ul>
<li>Settings live under Settings → LeTDK</li>
<li>Dependent fields hide when the master switch is off</li>
<li>Keyword input converts Chinese commas to English commas</li>
<li>Homepage title (60) and description (160) length checks support UTF-8 when mbstring is available</li>
<li>Uninstall removes plugin options via <code>uninstall.php</code></li>
</ul>
Note
If you already use a full SEO plugin, avoid duplicate meta tags—enable only one plugin to control titles and meta output.
This plugin is developed by Lezaiyun Studio and maintained by LaoJiang.
🔗 Official product page: <a href="https://www.lezaiyun.com/letdk.html" rel="nofollow ugc">https://www.lezaiyun.com/letdk.html</a>
👤 Developer Blog: <a href="https://www.laojiang.me" rel="nofollow ugc">https://www.laojiang.me</a>

LeTDK

A lightweight WordPress SEO plugin to customize homepage, category, and post titles, descriptions, keywords, and optional Open Graph tags.

jim912

Outputs meta description and meta keywords in the element head. 
Notice! Current version japanese only, yet.
<h3>Links</h3>
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Stops the automatic forming and the HTML tag removal in the html mode of WordPress, and generates a natural paragraph and changing line.
“<a href="http://www.web-strategy.jp/" title="CMS service with WordPress" rel="nofollow ugc">CMS service with WordPress</a>” provides you service that uses WordPress as a CMS.

Meta Manager

Outputs meta description and meta keywords in the element head.

LeTDK vs Meta Manager