WPXERO

Embed Anything, Anywhere – The Smart Way.
WPXero Iframe is your all-in-one solution for effortlessly embedding external content into your WordPress site. Whether you want to showcase videos, audio, maps, or other iframe-based content, this lightweight yet powerful Gutenberg block plugin makes it simple and seamless.
Built specifically for the modern WordPress editor, WPXero Iframe enhances your content creation workflow and helps bring your pages to life.
✨ Key Features:
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🔧 Seamless Gutenberg Integration 
Add iframe blocks directly from the editor — no coding required.
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🎥 YouTube & Vimeo Support 
Easily embed videos from YouTube or Vimeo and deliver rich media experiences to your audience.
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🌐 Universal Embed Support 
Embed content from virtually any site that supports iframe embedding — from maps to third-party tools.
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🎨 Customization Made Simple 
Adjust width, height, responsiveness, and other display settings to match your design and branding.
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📱 100% Responsive 
Your embedded content automatically adapts to fit all screen sizes for a flawless mobile experience.
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WPXero Iframe is ideal for bloggers, marketers, educators, developers — anyone who wants to enrich their content with embedded media without hassle.

Iframe Block – Easy Embed Block for YouTube, Vimeo & More

WPXero Iframe is a powerful and flexible Gutenberg block plugin that lets you embed content from YouTube, Vimeo, Google Maps, and virtually any websit …

Automattic

Donncha O Caoimh (a11n)

Michael Adams (mdawaffe)

Unfiltered MU gives Administrators and Editors the <code>unfiltered_html</code> capability. This prevents WordPress MU/WordPress 3.0 multisite from stripping <code><iframe></code>, <code><embed></code>, etc. from these users’ posts. Authors and Contributors do not get this capability for security reasons.
The plugin can either be used globally for your entire MU site, or it can be applied on a blog-by-blog basis.
For WordPress MU or WordPress 3.0 multisite only. Regular WordPress already offers this feature and does not need this plugin.
Warning! This is a very dangerous plugin to activate if you have untrusted users on your site. Any user could add Javascript code to steal the login cookies of any visitor who runs a blog on the same site. The rogue user can then inpersonate any of those users and wreak havoc. If all you want is to display videos on your WordPress MU blogs, use the native <a href="https://codex.wordpress.org/Embeds" rel="nofollow ugc">Embed Support</a>, <a href="https://wordpress.org/extend/plugins/vipers-video-quicktags/" rel="ugc">Viper’s Video Quicktags</a> or any of the other <a href="https://wordpress.org/extend/plugins/tags/video" rel="ugc">video plugins</a> on WordPress.org. 
If you use this plugin your site will be hacked in one way or another if you allow anonymous users on the Internet to create blogs on your site. It’s very dangerous.
Are you still 100% sure you want to use this plugin?

Unfiltered MU

I love when plugins are so cleanly written and do their trick without hassle. Especially after 8 years of no updates. Though they should submit an update just to remove the "2 years old" warning...

Still works! March 2017

This WordPress MU/WordPress 3.0 multisite plugin gives blog Administrators and Editors the ability to post whatever HTML they want.

Iframe Block – Easy Embed Block for YouTube, Vimeo & More vs Unfiltered MU