Louy Alakkad

This plugin will regenerate all missing image sizes for an image when it’s chosen as a featured image for any post. Very useful when you change your template. No settings whatsoever, just activate and forget.

Featured Image Resize

This plugin will regenerate all missing image sizes for an image when it's chosen as a featured image for any post. No settings whatsoever.

ghuger

richardgabriel

Hal Gatewood

HG Slider creates a new ‘Slides’ area in your WordPress admin and allows you to easily setup multiple sliders around your site. It uses the standard WordPress user interface so you (and your clients) will know how to use it instantly.
It has a full interface for creating Sliders and can simply put but anywhere on your site using a simple shortcode.

Responsive WordPress Slider – HG Slider

A responsive image rotator plugin that easily creates WordPress slideshows. Now 100% Organic!

Featured Image Resize vs Responsive WordPress Slider – HG Slider