image manager
GoUploader Images & Files HTML5 (multiuploader)
Is a jQuery plugin and used to upload multiple images and files to the server. This written only with JavaScript and HTML5, it is very easy to configure and customize (you can customize almost all its elements, is very complete), has drag and drop support , you can create your own templates (buttons, progress bar, loaders, texts, containers, etc …). This pack includes sample files in addition to the same PHP. Although it can be adapted to any ...
Image Sizes Manager
easily add, edit, delete & regenerate all image sizes manage built-in, 3rd party and your custom image sizes asynchronous, fast, fail-safe image regenerating with a convenient progress bar great for complex themes with many image sizes full WP admin integration with native WP GUI [thumbnail size=”your-image-size” /] shortcode for inserting custom size thumbnails in posts and pages Online demo, examples and documentation