Kumbh Design Inc.

You can set meta tags like keyword, description. You can customize on each individual page/post as well.
<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.

Made Neat

Give credit where it’s due! Acknowledgify is a lightweight and flexible plugin that allows developers, freelancers, and agencies to showcase their contributions to a website.
Key features include:
<ul>
<li>humans.txt Generator – Automatically create a virtual <code>humans.txt</code> file to recognize contributors such as developers, designers, and agencies.</li>
<li>Meta Tags for Acknowledgment – Insert author, designer, developer, and publisher meta tags dynamically into the <code><head></code> section.</li>
<li>Customizable Footer Link – Add a discreet, styled acknowledgment link in the footer with flexible placement options:
<ul>
<li>Auto-Insert: Automatically place the link at the bottom of the site.</li>
<li>Shortcode: Use <code>[acknowledgify_madeby_footer]</code> in any post, page, or widget for custom placement.</li>
<li>PHP Snippet: Manually insert the acknowledgment via <code><?php if (function_exists('acknowledgify_display_madeby_footer')) { echo acknowledgify_display_madeby_footer(); } ?></code>.</li>
</ul>
</li>
<li>Lightweight & Compatible – Designed for performance, fully compatible with WordPress 6.0+ and PHP 8.0+.</li>
<li>Built to be Translated – Includes translations and supports further multilingual setups.</li>
<li>Export/Import Features – Simplify plugin setup across multiple websites with seamless export and import functionality.</li>
</ul>
With Acknowledgify, you can showcase your work in a non-intrusive way while maintaining flexibility over how and where the acknowledgment appears.
Translation-Ready & Multilingual Support: 
Acknowledgify is fully translation-ready and supports multiple languages via WordPress.org’s translation system. Translations will be automatically downloaded based on your site’s language settings.
<h3>Links</h3>
<ul>
<li><a href="https://acknowledgify.com/" rel="nofollow ugc">Plugin Website</a></li>
<li><a href="https://acknowledgify.com/" rel="nofollow ugc">Suggest Features</a></li>
<li><a href="https://humanstxt.org/" rel="nofollow ugc">humans.txt</a></li>
</ul>
<h3>Support</h3>
For documentation and support, visit: 
<a href="https://acknowledgify.com" rel="nofollow ugc">https://acknowledgify.com</a>
<h3>License & Credits</h3>
This plugin is licensed under GPL-2.0+. 
Inspired by the humans.txt initiative.

Acknowledgify

Acknowledgify lets agencies, freelancers, and developers add credits to WordPress sites via humans.txt, meta tags, and footer links.

WP Simple Meta Tags vs Acknowledgify