Is there a cmux for Windows?

cmux itself is macOS-only. Agentty covers the same ground — split panes, a status for each agent and notifications when one needs you — and runs natively on Windows 10 1809+ and Linux as well as macOS.

Do both work with Claude Code and Codex?

Yes. Both run any agent CLI in a terminal pane. Agentty integrates most deeply with Claude Code and Codex, and also detects Gemini CLI, Amp, OpenCode and others.

Both are free and open source: cmux under GPL-3.0-or-later, Agentty under the Apache License 2.0.

cmux alternative for Windows and Linux: Agentty vs cmux

By LEE YONGBEOM · Creator of Agentty · Checked 18 October 2026

TL;DR

Pick cmux if you are on a Mac, already use Ghostty's configuration, and want a scriptable CLI and socket API or SSH workspaces.
Pick Agentty if you also work on Windows or Linux, or want a git worktree per session, live context between Claude Code and Codex, and usage and process views.
Both are native apps (cmux in Swift and AppKit, Agentty in Rust) with split panes, attention notifications and an in-app browser.

Agentty running Claude Code and Codex in split panes, each showing what it is working on

▶ See it run, in under a minute

What each one documents

	Agentty	cmux
Plans one goal into a team of agents that runs in waves	Documented	Partly
Claude Code, Codex, Gemini CLI and Antigravity on one team	Documented	Partly
Unlimited split panes	Documented	Documented
Knows whether an agent is working, done or waiting for you	Documented	Documented
A git worktree per session	Documented	Not documented
A code editor inside the app	Documented	Not documented
An in‑app browser the agent can drive	Documented	Documented
Open your terminals from your phone	Documented	Partly
macOS, Windows and Linux	Documented	Not documented
GitHub, Linear and Jira issues in the app	Not documented	Not documented
Resume an agent session	Documented	Documented
Search sessions by title, message or folder	Documented	Not documented
Move a session between Claude Code and Codex	Documented	Not documented
Two sessions linked, context flowing live	Documented	Not documented
Usage dashboard — cost, tokens, limits	Documented	Not documented
AI process monitor — CPU, memory per agent	Documented	Not documented
Built‑in Git, with diff and commit	Documented	Not documented
MCP server management	Documented	Not documented

These are reference results, compared against each project's open-source code; features may have changed since the comparison was made.

Facts side by side

	Agentty	cmux
Platforms	macOS 13+ (Apple silicon), Windows 10 1809+ (x64), Linux (x86_64)	macOS only; an iOS app in TestFlight beta
Built with	Rust, drawn on the GPU	Swift and AppKit, on libghostty
License	Apache License 2.0	GPL-3.0-or-later (server components under BSL 1.1)
Install	.dmg, Homebrew cask, Windows setup, .deb, .rpm	.dmg, Homebrew cask
A command line for the app	An agentty command for the agents in its panes: parallel tasks, the in-app browser, databases	A CLI and Unix socket API to create workspaces, split panes, send input and drive the browser
SSH workspaces	Not documented	Yes (cmux ssh)

Where cmux is the better pick

Scripting the window. cmux documents a CLI and a Unix socket API to create workspaces, split panes, send input and drive its browser from any script. Agentty's agentty command is aimed at the agents running inside it rather than at scripting the window from outside.
Ghostty compatibility. cmux reads Ghostty's configuration for themes and fonts, so a Ghostty user feels at home immediately.
Remote machines. cmux ssh opens a workspace on a remote machine, and remote tmux attachment is in beta.
Claude Code teammate mode. cmux claude-teams shows Claude Code teammates as native splits.
A larger community. About 28k GitHub stars on the day we checked.

Where Agentty goes further

Windows and Linux. Agentty runs on all three desktop systems; cmux is macOS-only.
A git worktree per session. A new AI session in a busy project gets its own worktree and branch. cmux's README does not mention worktrees.
Context between Claude Code and Codex. Link two sessions so context flows live, one way or both, and move a session from one agent to the other.
Usage and processes. A usage dashboard of cost, tokens and limits from local transcripts, and CPU and memory for every agent and MCP server.
MCP servers and plugins. MCP servers, skills, subagents and plugins managed in one place.

Agentty running several AI coding agents in split panes, each showing its status — Agentty with several agents in split panes. A screenshot of the app, not a mock-up.

How this was checked

Every line about cmux was read off its own README, repository or site on 18 October 2026. A “not documented” means the project does not describe the feature, not that it cannot do it. This is a comparison of what each project documents, not a benchmark. If something here is out of date, tell us and it will be corrected.

Frequently asked

Is there a cmux for Windows?: cmux itself is macOS-only. Agentty covers the same ground — split panes, a status for each agent and notifications when one needs you — and runs natively on Windows 10 1809+ and Linux as well as macOS.
Do both work with Claude Code and Codex?: Yes. Both run any agent CLI in a terminal pane. Agentty integrates most deeply with Claude Code and Codex, and also detects Gemini CLI, Amp, OpenCode and others.
Which one is free?: Both are free and open source: cmux under GPL-3.0-or-later, Agentty under the Apache License 2.0.

Sources

cmux README — checked 18 October 2026
Agentty README and releases — checked 18 October 2026
Agentty documentation — checked 18 October 2026

Download Agentty — free Installation guide