Greg - SiteOrigin

<p>A lot of themes ship with Timthumb because it allows their users to start using the theme without rebuilding thumbnails.</p>
<p>Secure Image Resizer offers a far more secure alternative. It allows theme developers to rely on WordPress’ own image resizing functionality using <code>add_image_size</code> and <code>get_the_post_thumbnail</code>.</p>
<p>When get_the_post_thumbnail is called, Secure Image Resizer checks if the requested image size exists. If the image doesn’t exist it dynamically creates the resized version. It works in the background, with no front end functionality.</p>
<p>Theme developers can either bundle this plugin into their themes, or suggest that their users install it.</p>
<p>It also includes 2 functions <code>so_resize_custom</code> and <code>so_resize_custom_html</code> to do dynamic image resizing using Imagick. Great for theme developers.</p>
<p>Please Note: This is an early release of Secure Image Resizer. Please use it, try and break it and report any bugs to me support@siteorigin.com so I can quickly fix them and work towards version 1.0.</p>


Secure Image Resizer

A very simple and secure image resizer. It adds dynamic resizing so you don't need to regenerate thumbnails when you install a new theme.

Human Made

Joe Hoyle

Matthew Haines-Young

tcrsavage

Tom Willmot

<p>WP Thumb is a simple plugin that seamlessly integrates with the WordPress image functions. You can specify height, width and crop values, and an image will be generated, which is then cached for future use.</p>
<h4>Features</h4>
<ul>
<li>Automatic images resizing, cropping and caching.</li>
<li>Ideal for when you want to change the dimensions of default image sizes.</li>
<li>Can extend using filters to make use of any of the phpThumb Library functions by manipulating the image object.</li>
</ul>
<h3>Contribution guidelines</h3>
<p>see https://github.com/humanmade/WPThumb/blob/master/CONTRIBUTING.md</p>


WPThumb

An on-demand image generation replacement for WordPress' image resizing.

Secure Image Resizer vs WPThumb