ITerm2

iTerm2 is a free and open-source terminal emulator for macOS, licensed under GPL-2.0-or-later. It was derived from and has mostly supplanted the earlier "iTerm" application.

iTerm2

iTerm2 screenshot showing multiple tabs, split panes, regular expression search highlighting, and UTF-8 support.
Developer(s)	George Nachman
Stable release	3.5.11 / January 2, 2025; 4 months ago (2025-01-02)[1]
Repository	github.com/gnachman/iTerm2
Operating system	macOS
Type	Terminal emulator
License	GPL-2.0-or-later
Website	www.iterm2.com

iTerm2 supports operating system features such as window transparency, full-screen mode, split panes, Exposé Tabs, Growl notifications, and standard keyboard shortcuts. Other features include customizable profiles, Instant Replay of past terminal input/output,^[2][3] a Toolbelt showing running jobs and a command history,^[4] the ability to open when a key combination is pressed,^[5] and autocomplete.^[6]

History

A Mozilla-sponsored 2019 code audit found one serious security vulnerability in iTerm2's tmux integration, which developer George Nachman fixed in an update.^[7]

Reception

Software engineer Mike Rourke called it an "excellent [...] more full-featured Terminal" than Apple's built-in Terminal app.^[4] iTerm2 is recommended in several programming books,^{[4][8][9][10]} with engineer Jo Rhett and Mozilla's Tom Ritter describing it as one of the most popular terminal emulators.^[11][12] Developer Mark McDonnel noted its additional features but criticized it for being less ubiquitous than tmux by lacking a Linux version.^[13]

See also

• Free and open-source software portal

• List of terminal emulators
• Terminal (macOS), stock terminal emulator for macOS