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kitty vs iTerm2: catalog facts
kitty	iTerm2
Free Free and open source under the GPL.	Free Free and open source under the GPL.
macOS, Linux	macOS
Inline image display through its own graphics protocol Kittens add diffing, hints, remote control and SSH integration	Instant replay and shell integration make past output easy to recover Native tmux control mode turns tmux windows into real tabs
No Windows build Configuration is a text file with no graphical settings	macOS only So many settings that first-time configuration is daunting
Downloadable app	Downloadable app
Open source	Open source
License: GPL-3.0	License: GPL-2.0
Not stated if an account is needed	Not stated if an account is needed
Not stated if it works offline	Not stated if it works offline
Official website Full listing and sources Checked September 22, 2026	Official website Full listing and sources Checked September 22, 2026

Catalog facts only. Anything “not stated” is unconfirmed. Check full listings for details.