Wget

GNU Wget is a free software package for retrieving files using HTTP, HTTPS, FTP and FTPS the most widely-used Internet protocols. It is a non-interactive commandline tool, so it may easily be called f...
Language(s): C
Operating system(s): Cross-platform
License: GPL v3+

cURL

cURL is a computer software project providing a library (libcurl) and command-line tool (curl) for transferring data using various protocols. It was first released in 1997. The name stands for "Client...
Language(s): C
Operating system(s): AIX, AmigaOS, BeOS, Chrome NaCl, DOS, DragonFly BSD, FreeBSD, GNU-Darwin, HPUX, Haiku, Hurd, IRIX, Linux, macOS, MiNT, Midnight BSD, Minix, NetBSD, NetWare, Nexenta, OS/2, Open Server, OpenBSD, Plan9, QNX, RISC OS, Solaris, Syllable, Tru64 UNIX, UnixWare, VMS, Microsoft Windows, z/OS
License: MIT/X derivate license