iTerm2

Judgement

What it is

Developer tool

What it does

A macOS terminal emulator with native tmux integration, shell integration, automatic profile switching per host, inline images and an optional built-in AI chat.

Adopt it when

You work on a Mac and want a mature replacement for Terminal.app with deep tmux and SSH features.

Watch out

It is macOS only and largely maintained by one developer.

Ready for

Production-ready

Runs as

Desktop app

Built with

Swift, Objective-C and Python

How established

Established: started 15 years ago, no tagged release yet.

What the license allows

Use inside your business is unrestricted, but anything you distribute that includes it must be released under the same license.

Judged on 2026-11-06 from the project's README and GitHub data. The license and age lines are worked out directly.

Built from

Follow it down: iTerm2 → Swift → LLVM project → runs on a microchip

How compilers were built, back to punched paper tape

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