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tmux vs dtach: catalog facts
tmux	dtach
Free Free and open source under the ISC licence.	Free Free and open source.
macOS, Linux, Command line	macOS, Linux, Command line
Sessions survive a dropped SSH connection Splits and windows without needing the terminal emulator to support them	Very small and simple Keeps programs running after a terminal disconnects
The prefix-key model takes a while to become automatic Configuration is terse and the manual page is dense	No windows, splits or scrollback like tmux or screen Infrequent development
Downloadable app	Downloadable app
Open source	Open source
License: ISC	License not stated
No account needed	No account needed
Works offline	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.