Putty.exe May 2026

is a free, open-source terminal emulator and network file transfer application used primarily to establish secure remote connections over a network. Originally developed by Simon Tatham for the Windows operating system in 1999, it has since become a standard tool for IT professionals, system administrators, and developers for managing servers and network devices. What is PuTTY.exe?

Despite the rise of native terminal tools like or OpenSSH for Windows , PuTTY remains a staple for several reasons: Useful PuTTY Configuration Tips and Tricks [SSH Client] putty.exe

The primary method for secure, encrypted communication. is a free, open-source terminal emulator and network

A basic, unencrypted protocol (not recommended for sensitive data). Rlogin: A remote login protocol for Unix systems. Despite the rise of native terminal tools like

At its core, acts as a conduit between your local machine and a remote computer. While it is most famous as an SSH client , it supports several essential network protocols: