What are some alternatives?
PuTTY - Popular free terminal application. Mostly used as an SSH client.
Transmit - Transmit is an FTP client for Mac OS X and Mac OS Classic (which is unsupported).
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.
ImageOptim - Faster web pages and apps.
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.
CodeKit - CodeKit allows you to optimize the performance of your website by automatically and efficiently compiling a variety of popular languages.