Justin Tadlock

<p>The My Snippets plugin allows you to define custom widget content on a per-post basis from the edit post screen.</p>
<p>While the plugin is both simple and powerful, it’ll never replace such plugins as Widget Logic and Widget Context nor is that the plan. What it does is allow you to add custom widget content from the edit post screen without having to go to your Widgets screen in the admin for additional configuration.</p>
<h3>Features:</h3>
<ul>
<li>Post-by-post (or any public post type) widget content that you control.</li>
<li>Extra widget for use on your site.</li>
<li>Easy-to-use snippets settings box on the post editor.</li>
<li>Supports HTML and shortcodes.</li>
</ul>
<h3>Professional Support</h3>
<p>If you need professional plugin support from me, the plugin author, you can access the support forums at <a href="https://themehybrid.com" rel="nofollow ugc">Theme Hybrid</a>, which is a professional WordPress help/support site where I handle support for all my plugins and themes for a community of 70,000+ users (and growing).</p>
<h3>Plugin Development</h3>
<p>If you’re a theme author, plugin author, or just a code hobbyist, you can follow the development of this plugin on it’s <a href="https://github.com/justintadlock/my-snippets" rel="nofollow ugc">GitHub repository</a>.</p>
<h3>Donations</h3>
<p>Yes, I do accept donations.  If you want to buy me a beer or whatever, you can do so from my <a href="http://themehybrid.com/donate" rel="nofollow ugc">donations page</a>.  I appreciate all donations, no matter the size.  Further development of this plugin is not contingent on donations, but they are always a nice incentive.</p>


My Snippets

Allows you to add custom widget content on a post-by-post basis from the edit post screen.

Marcus (aka @msykes)

Marcus

Pixelite

<p>Meta Tags Manager is a powerful yet simple, lightweight plugin which allows you to add custom meta tags to your site. Features include:</p>
<ul>
<li>Supports meta tags including the name, property, http-equiv, charset and itemprop attributes.</li>
<li>Choose from predefined types, such as ‘name=”keyword”‘ or create your own by typing it in.</li>
<li>Add meta tags to specific posts, choose what Custom Post Types to support from our settings page.</li>
<li>Add global meta tags that will display on specific CPTs, Taxonomies, your front page or your whole site.</li>
<li>Automatically add Open Graph details to your home page.</li>
<li>Automatically add Schema and Structured Data to your home page.</li>
<li>Add Google Sitelinks and Sitelinks Search markup.</li>
<li>Easily add verification codes for services like Facebook, Google Webmaster Tools, Bing Webmaster Tools, Yandex and more (or… create your own custom meta tags!).</li>
</ul>
<p>Use cases include:</p>
<ul>
<li>Adding Google and Yahoo site verification tags</li>
<li>Adding additional open graph, twitter card or other social media meta info not supported by other SEO/Meta plugins</li>
</ul>
<p><a href="https://metatagmanager.com/gopro/?utm_source=plugin-readme&utm_medium=plugin&utm_campaign=plugin" rel="nofollow ugc">Go Pro</a> for many newly added features, including:</p>
<ul>
<li>Dynamic placeholders to include data about the page being displayed, such as page title, comment count, thumbnail URLs and more!</li>
<li>Additional contexts to add global meta tags, as well as exclusion rules for finer-grained controls.</li>
<li>Shortcode support within meta descriptions, allowing for more dynamic data insertion with plugins such as ACF</li>
<li>Unique tag detaction of Meta Tag Manager tags with hierarchical precedence, avoid creating duplicate meta tags.</li>
<li>Taxonomy support – create meta tags for individual taxonomy term pages such as a single tag or category.</li>
<li>More to come! Go Pro now and get an early-bird discount of up to 50%!</li>
</ul>


Meta Tag Manager

Easily add and manage custom meta tags to various parts of your site or on individual posts, such as Yahoo and Google verification tags.

My Snippets vs Meta Tag Manager