PuTTY
Used by 6 peoplechiark.greenend.org.uk ↗

“I use PuTTY to log in to and mess with my servers.”
Tarn Adams Interview, Game developer (Dwarf Fortress) · via Uses This 
“I also use Start+R, then type "cmd" to launch a command prompt, "ssh \<host\>" to run PuTTY (which I have in my path named as ssh.exe, etc), or just a URL.”
Justin Frankel Interview, Software developer (Winamp, REAPER) · via Uses This 
“I also avoid running a development environment, so I simply use Putty to SSH into one of my other machines (or servers) to get what I need done.”
David Cramer Interview, Developer, infrastructure nerd (DISQUS) · via Uses This 
“I'm in PuTTY all the time.”
Gabriel Weinberg Interview, Web developer, founder of DuckDuckGo · via Uses This 
“PuTTY is free and cool for SSH.”
Mitch Altman Interview, Inventor · via Uses This