wtmux

Spec sheet

Purpose

wtmux runs multiple terminal sessions in one window, with panes, named windows, and detachable sessions.Read 11 Oct 2026 · shmuelie.github.io

Intended users

The maker recommends wtmux for people who want a native Windows terminal multiplexer without WSL, Native AOT performance, or COM-based plugin extensibility.Read 11 Oct 2026 · shmuelie.github.io

Integrations

The maker documents a DSC v3 resource for declaratively managing global wtmux options through WinGet Configuration or DSC v3.Read 11 Oct 2026 · shmuelie.github.io

Security

The control named pipe is scoped to the current user's SID, access is restricted to that user and SYSTEM, and the client checks the pipe endpoint's owner.Read 11 Oct 2026 · shmuelie.github.io

License

The comparison page lists wtmux's license as MIT.Read 11 Oct 2026 · shmuelie.github.io

Clipboard controls

Clipboard writes from pane applications are policy-controlled; the default allows external clipboard integration while rejecting pane-originated OSC 52 requests.Read 11 Oct 2026 · shmuelie.github.io

Compatibility

The comparison page lists Windows 10 version 2004 or later as the minimum supported Windows version.Read 11 Oct 2026 · shmuelie.github.io

Configuration

wtmux reads `~/.wtmux.conf` or falls back to `~/.tmux.conf`, supporting a subset of tmux configuration syntax.Read 11 Oct 2026 · shmuelie.github.io

Distribution

The comparison page says wtmux is distributed through the Microsoft Store using MSIX packaging with a Windows execution alias.Read 11 Oct 2026 · shmuelie.github.io

Notable limits

The comparison page says hooks, control mode, session groups, and some advanced key-binding features are not implemented.Read 11 Oct 2026 · shmuelie.github.io

Pane and session features

It supports session and window management, horizontal and vertical pane splits, pane navigation, resizing, and zoom.Read 11 Oct 2026 · shmuelie.github.io

Persistence limit

Live processes do not survive a Windows restart or server shutdown.Read 11 Oct 2026 · shmuelie.github.io

Plugin discovery limit

Automatic discovery of installed AppExtensions is not yet enabled, according to the release notes.Read 11 Oct 2026 · shmuelie.github.io

Plugins

wtmux has a COM-based plugin system and built-in plugins; automatic discovery of installed AppExtensions is not yet enabled.Read 11 Oct 2026 · shmuelie.github.io

Session lifetime

Sessions run in the background and can be detached and reattached, but live processes do not survive a Windows restart or server shutdown.Read 11 Oct 2026 · shmuelie.github.io

Terminal features

It supports VT and ANSI sequences, Unicode, mouse input, application terminal modes, hyperlinks, and clipboard integration.Read 11 Oct 2026 · shmuelie.github.io

Terminal safety

The site describes policy-controlled OSC 8 hyperlinks and OSC 52 clipboard writes, with terminal-frame sanitization and validation of hyperlinks before they reach the host terminal.Read 11 Oct 2026 · shmuelie.github.io

tmux compatibility limits

The maker warns that many unsupported tmux options are silently ignored and complex tmux configurations may need adaptation.Read 11 Oct 2026 · shmuelie.github.io

Windows support

wtmux targets Windows 10 version 2004 or later and uses the Windows ConPTY runtime.Read 11 Oct 2026 · shmuelie.github.io

Where Specifiction places it

• Terminal Multiplexers#28 of 296.5