NeoDownloader - As you know, there is a lot of websites with a lot of pictures, music and movies.
CDisplay Ex - CDisplay Ex is the most used comic book reader.
Vov Picture Downloader - Download pictures from websites.
YACReader - Download YACReader for your platform. Windows, Linux, MacOSX. And enjoy you comic books cbr cbz with the best comic reader.
Bulk Image Downloader - With Bulk Image Downloader you can download full sized images from almost any web gallery.
Tachiyomi - A free and open source manga reader for Android.