BlueCrab
Blue Crab is a web crawling app for downloading and searching websites.
Blue Crab is a versatile app that you use to download the contents of a website to your Mac, in whole or in part.
Also application lets you download a list of URLs all at once. You can drag links from your browser into Blue Crab to create a list. Special lists like Safari's history or all the links in an HTML file or webpage can be automatically generated. Blue Crab can download websites without modifying the files for navigation, leaving them untouched. This creates a snapshot of the files on the website that can be saved to a DVD or another drive.
Moreover, you will be able to save only specific types of resources such as images or email addresses using configurations. The Media Grabber window makes it easy to download just images, PDFs or movies. And much more.