Internet Download Manager AKA IDM is an Internet download accelerator, It can speed up the download speed up to 5 times, and it support resume downloads if the download stopped for any reason such as losing internet connection, this program can even fix the corrupted downloads, and you can also build a download menu and manage how many downloads should it work at the same time and you can force the PC to shutdown automatically when download finish, IDM is well integrated with most of the popular browsers like Firefox, Chrome, Opera and Internet Explorer, IDM also has a brand new technology to enhance the download speed through dividing the downloads into a small segmentation, this program can use proxy to let you download what you need anonymously and you can use HTTP and FTP protocols and you can use this program to grab videos from video websites like YouTube and Metacafe.
