iTerm2 is a terminal emulator for macOS that bundles a substantial set of quality-of-life features around text selection, search, history, and shell integration. The headline stuff: split panes let you tile multiple sessions; hotkey window gives you a dropdown terminal from anywhere; Instant Replay recovers erased text; Shell Integration knows where your prompt is, so you can jump between commands or auto-complete previous ones; and Triggers let you wire regex-matched output to actions (notifications, responses, highlighting). Lesser but useful: 24-bit color, mouse reporting for Vim/Emacs, a password manager tied to macOS Keychain, inline images including animated GIFs, per-line timestamps, and a "Captured Output" feature that parses build logs for errors and can spawn editor jumps to offending lines. The source doesn't specify which features are unique to iTerm2 versus standard in other terminals, version numbers, pricing, or performance trade-offs. It's a feature catalog, not a comparison or benchmark.