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GNU Screen vs psmux: catalog facts
GNU Screen	psmux
Free Free and open source GNU software.	Free Free and open source under the MIT licence.
macOS, Linux, Command line	Windows, Command line
Detach and reattach sessions so remote processes keep running Several shell sessions inside one terminal window	Runs natively on Windows with no WSL Aims for tmux compatibility
Keyboard-driven interface takes time to learn No Windows version listed	Windows only Younger project than tmux itself
Downloadable app	Downloadable app
Open source	Open source
License not stated	License: MIT
No account needed	No account needed
Works offline	Works offline
Official website Full listing and sources Checked September 23, 2026	Official website Full listing and sources Checked October 2, 2026

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