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GNU Screen vs 3mux: catalog facts
GNU Screen	3mux
Free Free and open source GNU software.	Free Free and open source under the MIT license.
macOS, Linux, Command line	Command line
Detach and reattach sessions so remote processes keep running Several shell sessions inside one terminal window	i3-like keybindings and mouse controls Search and scrollback included
Keyboard-driven interface takes time to learn No Windows version listed	Requires a terminal
Downloadable app	Downloadable app
Open source	Open source
License not stated	License: MIT
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 23, 2026	Official website Full listing and sources Checked October 8, 2026

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