cURL is described as 'Computer software project providing a library and command-line tool for transferring data using various protocols with URL syntax: supporting FTP, FTPS, SCP, SFTP, HTTP, HTTPS, TFTP, TELNET, DICT, LDAP, LDAPS and FILE' and is a very popular HTTP Client in the development category. There are more than 25 alternatives to cURL for a variety of platforms, including Mac, Windows, Linux, BSD and Xfce apps. The best cURL alternative is Wget, which is both free and Open Source. Other great apps like cURL are aria2, HTTPie for Terminal, Transmit and xh.