What are some alternatives?
When comparing MacTerm and PuTTY, you can also consider the following products
ConEmu - ConEmu-Maximus5 is a full-featured local terminal for Windows devs, admins and users. Get better console window with tabs, splits, Quake style, copy+paste, DosBox and PuTTY integration, and much more.
MobaXterm - MobaXterm is a software that uses a set of optimized network tools included in a single exe file. MobaXterm integrates several network clients with an X server, and also integrates a full set of Unix based commands. Read more about MobaXterm.
OpenSSH - OpenSSH is a free version of the SSH connectivity tools that technical users rely on.
Cygwin - Cygwin is a set of tools that provide Linux and POSIX functionality to Windows.
KiTTY - KiTTY is a fork from version 0.70 of PuTTY. It adds extra features to PuTTY.
FileZilla - FileZilla is an FTP, or file transfer protocol, client. It lets individuals transfer single files or batches to a web server. For many years, FTP was the standard for website design. Read more about FileZilla.