It was developed by Simon Tatham in C language. PuTTY, a popular terminal emulator, is an open-source, light-weight, and free SSH client.
What are Telnet, Rlogin, and SSH in PuTTY? 1.1.1 Download Alternative Binary Files for PuTTY (Windows).1.1 Download PuTTY for Windows Operating System (Released 27 June 2020).