WordPress is one of the most popular content management systems around for a good reason. It makes the process of managing content so easy. You still need to take time to clean up your website and maintain it the right way. Image Cleanup for WordPress can help. It will index unreferenced images and stops them from cluttering your content folder.
Image Cleanup indexes image leftovers. It finds images without meta or incorrect meta data. It saves you space and fixes image issues. You also get bulk repair/delete functionality. Image Cleanup offers pagination just in case you are dealing with lots of images. The logs tabs helps you stay on top of things. You get full restore functionality.
Image Cleanup is a time saver for those of you who have lots of unreferenced images on your website. This is a free plugin.