OriginalEXE

If you were ever annoyed about the way WordPress handles images resizing, this is a plugin for you.
What this plugin does is it optimizes the image handling in such a way that images are resized only when they are actually needed. What that means is that if your plugins/theme define a lot of image sizes, none of them will be generated on the image upload (like they would be usually), but only if they are actually requested in that size.
Resizing is done only once, images are later normally served by WordPress, so there is no performance hit.
Plugin also includes a method for removing all of the previously generated image sizes (useful when you install this plugin on a site with a lot of existing media).
TO REMOVE image sizes generated prior to activating the plugin, visit the ‘Tools -> Remove image sizes’ and use the button to perform the cleanup.
Other than that, you don’t need to do anything, plugin works silently in the background.
To sum up:
<ul>
<li>Resize images only when needed</li>
<li>Clean up existing images sizes</li>
<li>No performance hit</li>
<li>Free up your hosting space</li>
</ul>

Optimize Images Resizing

Hello! nice plugin one click option and all done!
add a custom search for images to detele.
ex. -unsmushed.jpg

God Job! Need More Features!

Plugin optimizes the process of generating custom image sizes in WordPress and offers a cleanup functionality for preexisting images.

Code for the People Ltd

Scott (@scottsweb)

Test your responsive website from the WordPress admin bar. This plugin uses the excellent <a href="http://lab.maltewassermann.com/viewport-resizer/" rel="nofollow ugc">Viewport Resizer bookmarklet</a> to add a responsive button to the WordPress admin bar. Once pressed you can easily test your site in a range of common viewport sizes (e.g. iPhone, Tablet and Desktop).
The plugin is handy for testing during development and also for writers and editors to preview their content on different devices.
Banner illustration above by <a href="http://gemmagarner.com/" title="WordPress design and illustration" rel="nofollow ugc">Gemma Garner</a>.
<a href="http://scott.ee/" title="WordPress web design Hampshire" rel="nofollow ugc">a plugin by Scott Evans</a>

Responsible

I first heard about this plugin via the WordPress Plugins A to Z podcast. 
The name was catchy, so when I found myself doing responsive styling work today, I thought I'd try it out. 
All I can say, is that the interface alone makes this plugin stand out.
Responsive coding can be painful, but this plugin adds order to what can become a nightmare of manually resizing your browser window.
5 stars from me. Very nice.



Slick UI makes responsive testing more fun

Viewport resizing comes to the WordPress admin bar.

Optimize Images Resizing vs Responsible