Ryan Burnette

There are a lot of plugins that allow users to embed videos using a shortcode. 
Now there’s one more out there.
Video Embeds currently supports YouTube and Vimeo.
Video Embeds allows for control over many of YouTube’s embed paramaters and 
all of Vimeo’s embed parameters. Set default values for all available options 
on the settings page.
Add FitVids.js to your site with the click of a button.
And a few other things too.

Video Embeds

Just another plugin that creates shortcodes for embedding videos in posts.

lepileppanen

luuptek

Responsive video embed plugin is a lightweight and simple video embedding plugin that will create responsive video embeds to your site.
It is possible to create responsive video embed by:
1) Simply copy pasting embed video URL into editor
2) Using a shortcode manually
[rve src=”embed video url” ratio=”video aspect ratio”]
src = URL of the embedded video
ratio = either ’16by9′ / ‘4by3′ / ’21by9’ / ‘1by1’ (optional), 16by9 is by default
3) Using the shortcode automatically by clicking on Embed video button and typing in video embed URL and selecting aspect ratio.

Responsive video embed

Enables you three simple ways to embed responsive video into your content.

Video Embeds vs Responsive video embed