PuTTY supports many variations on the secure remote terminal, and provides user control over the SSH encryption key and protocol version, alternate ciphers such as AES, 3DES, RC4, Blowfish, DES, and Public-key authentication. The name “PuTTY” has no official meaning. PuTTY is a free and open-source terminal emulator, serial console and network file transfer application. Please use the link below to download the latest version of PuTTY SSH Client from the official source
It is written and maintained primarily by Simon Tatham, a British programmer. PuTTY is a free implementation of SSH and Telnet for Windows and Unix platforms, along with an xterm terminal emulator.