tmux review

Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026

tmux is an open-source terminal multiplexer for command-line users on Unix-like operating systems. It creates and controls multiple terminals from one screen, organizing them into sessions, windows, and panes. Users can detach from a session while programs continue running, then reattach later. Its audience includes Linux and macOS users, as well as users of OpenBSD, FreeBSD, NetBSD, and Solaris, who want persistent local terminal management.

The core feature set is broad for a terminal multiplexer. tmux runs through a local background server and terminal clients, supports configurable pane layouts and resizing, and allows multiple clients to attach to one session. Commands, key bindings, configuration files, command mode, and scripting interfaces provide control over both everyday workflows and repeatable command-line operations. This makes tmux a strong fit for users who need structured terminal workspaces rather than a collection of independent terminal windows.

tmux is distributed as open-source software and is free to use, with no paid tier structure described. Its local server and socket model suits persistent sessions on the same system, but workflows requiring cross-device session synchronization should look elsewhere. The documented model also does not center on a formal plugin system, so users seeking a broader extension ecosystem may prefer another tool. Choose tmux for free, local session persistence, pane management, multi-client access, and scripting; avoid it when remote synchronization or a packaged, extensible platform is a primary requirement.

tmux pros and cons

• Where it wins
  • Persistent sessions continue running after detaching
  • Flexible sessions, windows, panes, layouts, and key bindings
  • Open-source, free, scriptable, and supports multiple clients
• Where it doesn't
  • Persistence is local rather than synchronized across devices
  • Requires command-line familiarity and configuration
  • No formal plugin system is part of its documented model

tmux fact sheet, pricing and score →

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Last updated 7 Oct 2026 · How we research and update