Tabby is described as 'infinitely customizable cross-platform terminal app for local shells, serial, SSH and Telnet connections' and is a terminal emulator in the os & utilities category. There are more than 50 alternatives to Tabby for a variety of platforms, including Windows, Linux, Mac, BSD and clink. The best alternative is PuTTY, which is both free and Open Source. Other great apps like Tabby are ConEmu, cmder, mRemoteNG and PowerShell.
Tabby is mainly a Terminal Emulator but alternatives to it may also be Shells or SSH Clients. Filter by these if you want a narrower list of alternatives or looking for a specific functionality of Tabby.
PuTTY is a free and open-source terminal emulator, serial console and network file transfer application. It supports several network protocols, including SCP, SSH, Telnet, rlogin, and raw socket connection. It can also connect to a serial port.
PowerShell (including Windows PowerShell and PowerShell Core) is a task automation and configuration management framework from Microsoft, consisting of a command-line shell and associated scripting language built on the .NET Framework.
PowerShell vs Tabby opinions
pros, cons and recent comments
powershell is a SHELL, not a terminal emulator. VERY different
MobaXterm is an enhanced terminal app that brings the advanced features of a Unix-like command-line to Windows. It takes the power of Cygwin and wraps it in a sleek, visual interface that's super easy to use, lightweight and portable.
Terminator enables the user to run and manage multiple terminal emulators side-by-side in the same window. The main focus is arranging terminals in a grid. (Tabs is the most common default method, which Terminator also supports.
Hyper™ is a beautiful and extensible, cross-platform terminal built on open web standards. It provides an elegant command-line experience that is consistent across all supported platforms which includes macOS, Windows and various Linux distributions like Fedora and Debian.
iTerm2 is a replacement for Terminal and the successor to iTerm. It works on Macs with macOS 10.10 or newer. iTerm2 brings the terminal into the modern age with features you never knew you always wanted.