Gary Pendergast

OpenGraph Fallback Embed adds a custom Gutenberg block and an auto-embed fallback that renders rich link cards using OpenGraph metadata from any URL.
Features:
<ul>
<li>OpenGraph Embed block — Paste any URL to embed it as a styled card showing the page’s title, description, image, and site name.</li>
<li>Auto-embed fallback — When WordPress can’t find an oEmbed provider for a URL pasted on its own line, this plugin automatically fetches the page’s OpenGraph tags and renders a card instead of a plain link.</li>
<li>Graceful degradation — Falls back to Twitter Card meta tags, then to HTML <code><title></code> and <code><meta name="description"></code> when OpenGraph tags are missing.</li>
<li>Transient caching — Fetched metadata is cached for 7 days to minimise external requests.</li>
</ul>
<h3>Development</h3>
The source code for this plugin, including unminified JavaScript and CSS, is available on GitHub:
<a href="https://github.com/pento/opengraph-fallback-embed" rel="nofollow ugc">OpenGraph Fallback Embed on GitHub</a>
The plugin uses <a href="https://developer.wordpress.org/block-editor/reference-guides/packages/packages-scripts/" rel="nofollow ugc">@wordpress/scripts</a> for building. Source files are in the <code>src/</code> directory. See the repository README for build instructions.

OpenGraph Fallback Embed

Provides an embed block and auto-embed fallback based on a site's OpenGraph tags when no other embed handler matches the URL.

Abhik

A lightweight plugin to add Facebook Opengraph in the section of your blog. The Facebook Opengraph lets yor visitors share your content with proper Title, Description and Thumbnail Image.
<ul>
<li>
The Post Title as OpenGraph Title
</li>
<li>
The first image uploaded/found in the post as the Facebook thumbnail. Ability to define default thumbnail if no image is found on the post.
</li>
<li>
Custom Excerpt for the Facebook Share/Like description. Brings the first 25 words of the blog post if no custom excerpt is found.
</li>
<li>
The Post URL as the Facebook Share/Like URL. Doesn’t matter if you have pretty permalinks on.
</li>
</ul>
Here is a live demo on my <a href="http://www.itsabhik.com/wordpress-opengraph-plugin/" rel="nofollow ugc">WordPress Opengraph Plugin</a> Homepage. If you find my plugins useful, add me in your circles on <a href="https://plus.google.com/106671843900352433725?rel=author" rel="nofollow ugc">Google +</a>. Don’t forget to check my blog <a href="http://www.itsabhik.com" rel="nofollow ugc">ItsAbhikDotCom</a>.
If you like the plugin, please vote a 5 Star. ===>>
Thanks

Opengraph and Microdata Generator

Adds Facebook OpenGraph Meta Tags to head for a better social sharing experience.

OpenGraph Fallback Embed vs Opengraph and Microdata Generator