xterm is the standard terminal emulator for the X Window System. A user can have many different invocations of xterm running at once on the same display, each of which provides independent input/output for the process running in it (normally the process is a Unix shell). Developed by Thomas E. Dickey
License: Open Source
iTerm2 is a powerful terminal emulator for macOS with extensive features like split panes, scripting support, and high customizability, making it ideal for advanced users and developers. In contrast, xterm is a lightweight, open-source terminal emulator that provides basic functionality and stability, suitable for users who prefer simplicity and low resource consumption.