Embedly

Enhance the default WordPress embedding to get previews for any article, 
including your own blog posts. You also get embeds for YouTube, Vimeo, Twitch, 
Google Maps, and Embedly’s growing list of <a href="https://embed.ly/providers" rel="nofollow ugc">1000+ supported 
providers</a>.
You can customize the style of the embeds, to optimize for darker WP themes, 
alignment, and width. In addition, social buttons can be added around the embeds 
to make it easier to share content from your blog posts.
If you have an Embedly Cards account, you can link it to the plugin with your Embedly API key. Not only does this remove branding from the cards, it also gives you access to analytics and viewer behaviors for most popular music and video player embeds (YouTube, Vimeo, Instagram, SoundCloud). Find out how many people viewed your embeds for how long. To learn more about Embedly Cards please visit <a href="https://embed.ly/cards" rel="nofollow ugc">our website</a>.
Using it is as simple as the default WordPress embedding. Embed media by pasting its URL in a single line when writing a post.
The plugin automatically displays an embed of the media in the WordPress post editor.
Fair Warning: This plugin generates static HTML content for your posts. After you deactivate 
the plugin, that HTML will still remain behind in all posts where the plugin was used to create 
embeds.

The Embedly Plugin extends WordPress's auto-embed feature to give your blog more media types and style options.

Pascal Birchler

What this plugin does:
<ul>
<li>Prevents others from embedding your site.</li>
<li>Prevents you from embedding other non-whitelisted sites.</li>
<li>Disables all JavaScript related to the feature.</li>
<li>Removes support for the WordPress embed block in the new block editor.</li>
</ul>
Just activate the plugin and you’re good to go.
Want embeds back again? Simply deactivate the plugin.

Disable Embeds

Works exactly as advertised. Thank you.

That does it without any extra clutter added to the admin. Thanks :)

Perfect

An easy way to drop some weight if you don’t need the functionality that the plugin disables. For me this has been a “set and forget” plugin. 

Does what it says, has been reliable

thanks

Finally, a no-fuss plugin that does exactly what it promises! Disable Embeds by Pascal Birchler is perfect if you're tired of WordPress's automatic embed features slowing down your site. Just activate and boom - no more unwanted embeds cluttering your content or others embedding your posts without permission. Love how it removes all the JavaScript bloat too. The best part? It's reversible - just deactivate when you need embeds back. Clean, lightweight, and effective!

Simple Solution to WordPress Embed Bloat

Don’t like the enhanced embeds in WordPress 4.4? Easily disable the feature using this plugin.

Embedly vs Disable Embeds