aria2: Cross Platform Command Line Tool To Download Files From HTTP, FTP and Bittorrent

aria2 is a command line utility for Windows, Linux and Mac OSX you can use for downloading files, which supports HTTP(S), FTP, BitTorrent, and Metalink. The cli tool can download a file from multiple sources/protocols and tries to utilize your maximum download bandwidth. Really speeds up your download experience. Also, aria2 has all the features you want in a BitTorrent client: DHT, PEX, Encryption, Web-Seeding and Selective Downloads.