x414i

X414i Feed for YouTube displays the latest public videos from a YouTube channel via the official YouTube RSS feed. Add a default channel in the plugin settings, then place the shortcode in any post, page, or widget area that supports shortcodes.
<h3>Shortcode</h3>
Basic usage:
<pre><code>[x414iyf_youtube_latest]
</code></pre>
Custom channel and limit:
<pre><code>[x414iyf_youtube_latest channel="@username" limit="3"]
</code></pre>
Available shortcode attributes:
<ul>
<li><code>channel</code> – YouTube channel ID, channel URL, or handle.</li>
<li><code>limit</code> – Number of videos to display.</li>
<li><code>template</code> – Display template: <code>card</code>, <code>list</code>, or <code>overlay</code>.</li>
</ul>

X414i Feed for YouTube

Display the latest YouTube videos from a channel using the public RSS feed, with no API key required.

klitscher

This plugin will take any rss feed available from YouTube and display/embed a list of those videos in the rss feed. Currently in development for PHP4, and therefore without using any of the xml functions in PHP5 or needing to have PEAR installed on your sever. You also do not need a YouTube API developers ID.

FeedTube

Allows you to embed/link to videos from any YouTube RSS feed.

X414i Feed for YouTube vs FeedTube