A tmux-like terminal multiplexer / Rust
Bring the familiar tmux workflow of windows and panes to Windows, macOS, and Linux. Keep shells, development servers, logs, and coding agents together, and control the whole workspace from the keyboard.
01 / Why wtmux
Terminal work quickly turns into a field of windows: a shell, editor, log, build, and SSH connection all compete for attention. wtmux is a terminal multiplexer that organizes those jobs into windows and split panes, so finding the right task does not interrupt the task itself.
Like tmux, the default interaction starts with Ctrl+B followed by a command key. Existing muscle memory can create windows, split horizontally or vertically, move focus, resize, and zoom. Every binding can be changed, and root bindings can run without a prefix.
wtmux began as a Rust application built around Windows ConPTY. It now runs on macOS and Linux through POSIX PTYs as well, preserving one interaction model and configuration while using the terminal foundation native to each system.
02 / Core features
Separate projects into windows, then split each one horizontally or vertically. Move focus by direction, drag or key-resize a border, zoom one pane, and cycle through even-horizontal, even-vertical, main-horizontal, main-vertical, and tiled layouts.
Navigate scrollback in a vim-like copy mode, select text, and copy it to the host clipboard. Search forward or backward through long output, and use wtmux's command history—separate from the shell—to find and reuse complex commands.
Choose cmd.exe, Windows PowerShell, PowerShell 7, or WSL on Windows, and use bash, zsh, fish, or another shell on macOS and Linux. UTF-8 is supported everywhere, with Shift-JIS available for Windows workflows.
Eight themes include Solarized, Monokai, Nord, Dracula, Gruvbox, and Tokyo Night. Nerd Font and Powerline glyphs, OSC 8 links, extended underlines, OSC 52 clipboard, and the Kitty keyboard protocol preserve modern prompts and TUI applications.
03 / See the workspace
04 / Agent workflow
When coding agents run in several panes, you need to know which one is working and which one needs input. wtmux classifies each pane as WORKING, BLOCKED, DONE, or IDLE, making the state visible in a dashboard and status indicators.
The message composer is an IME-friendly multiline editor for reviewing an instruction before sending it to a pane. The send-keys, capture-pane, and report-state commands extend the same workflow from direct keyboard use to scripted orchestration.
Give each role its own pane
See working and blocked states
Edit multiline input before sending
Drive input and output from the CLI
05 / Familiar keys
New window
Split left/right
Split top/bottom
Zoom pane
Copy mode
Search scrollback
Next layout
Compose message
Every prefix command can be reassigned or removed in [bind] inside config.toml. Add shortcuts that work without a prefix through [bind_root].
06 / Native terminal backends
On Windows, wtmux uses the operating system's ConPTY pseudo-terminal to run console applications and WSL in each pane. On macOS and Linux it runs inside your regular terminal with POSIX PTYs.
Configuration, windows and panes, copy and search, themes, and mouse interaction carry across platforms. Skills learned on Windows remain useful on macOS or Linux, preserving the rhythm of terminal work when the host changes.
One terminal. Many tasks.
GitHub Releases provides packages for Windows and macOS. On Linux, build a package or compile directly from source.
Explore wtmux on GitHub ↗