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Ghostty vs Kaku: catalog facts
Ghostty	Kaku
Free Free and open source under the MIT licence, created by Mitchell Hashimoto.	Free Free to download; source code is published on GitHub.
macOS, Linux	macOS
GPU rendering with genuinely native window chrome on each platform Very thorough terminal emulation, including the awkward edge cases	Works out of the box with no configuration required Tuned for AI coding workflows in the terminal
No Windows build Younger than the alternatives, with a smaller body of shared configuration	macOS only Younger project with less shared documentation
Downloadable app	Downloadable app
Open source	Closed source
License: MIT	License not stated
No account needed	No account needed
Works offline	Not stated if it works offline
Official website Full listing and sources Checked September 21, 2026	Official website Full listing and sources Checked October 1, 2026

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