Jordy Meow

Displays the metadata information in the Media Library. Regenerates the metadata and thumbnails even if they exist. This plugin is really useful when the metadata is broken. This is an extremely light plugin.
I am using this tool for debugging many installs and decided to make it available here. Try it, discuss it. Remarks are very welcome 🙂

Media Meta & Force Regenerate

No review for it yet, and probably need to be tried and reviewed by more. It does things Regenerate Thumbnails do not, it actually force regenerate the thumbnails, the metadata associated with it, and also visually display the content of this meta.

This plugin works

Displays the metadata information in the Media Library. Regenerates the metadata and thumbnails even if they exist.

Orangelab

Rickard Westerlind

Dramatically improve the quality of re-sized images by making WordPress use ImageMagick instead of standard GD image library.
Features
<ul>
<li>Preserve embedded color profile in re-sized image</li>
<li>Automatically recognize custom image sizes</li>
<li>Allow regeneration of existing images (optionally for selected image sizes only)</li>
<li>Configure image quality or use dynamically computed default value</li>
<li>Optimize different image sizes for either quality or size</li>
</ul>
Lnguages: English, French, German, Swedish, Turkish
Requires either ImageMagick binary or Imagick PHP module.
<h3>Contribute</h3>
Code repo available on https://github.com/orangelabweb/imagemagick-engine/

ImageMagick Engine

Maybe even better.  It uses ImageMagick Engine that is installed and allows me to easily regenerate all my images.

Works as advertised

The thumbnail regeneration could be a bit faster though. I have used it for longer than I can remember, at least 5 years.

Simple, functional

Improve the quality of re-sized images by replacing standard GD library with ImageMagick.

Media Meta & Force Regenerate vs ImageMagick Engine