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Ghostty vs cmux: catalog facts
Ghostty	cmux
Free Free and open source under the MIT licence, created by Mitchell Hashimoto.	Free Free and open source under the GPL.
macOS, Linux	macOS, iOS, Command line
GPU rendering with genuinely native window chrome on each platform Very thorough terminal emulation, including the awkward edge cases	Notification rings show which agent needs attention Vertical tabs with git branch, ports and directory
No Windows build Younger than the alternatives, with a smaller body of shared configuration	macOS only on the desktop Focused on agent workflows, which may be more than a plain terminal user needs
Downloadable app	Downloadable app
Open source	Open source
License: MIT	License: GPL
No account needed	Not stated if an account is 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.