cmux
cmux is a macOS terminal app that alerts you when AI coding agents need input and organizes many parallel sessions for developers.
What it is good for
- Tracking which of several parallel coding agent sessions needs attention
- Organizing many terminal panes and tabs across projects
- Running coding agents on remote machines over SSH
- Letting agents control a browser beside the terminal
At a glance
- Who it is for
- Setup
- Install a desktop app or browser extension
Level 3 of 5. Download and install it like any other app or extension.
- Cost
- Free and open source
- Type
- Agent app
- Tasks
- Works with
- Claude Code, Codex, OpenCode, Ghostty, Homebrew, Chrome
Momentum
- Rank this week
- Not ranked yet
- Best rank
- None yet
- GitHub stars
- 28,647
GitHub numbers as of Nov 2, 2026. Updated weekly.
Official links
Setup steps are on the official pages. We do not repeat them here, since they change.
Questions
- Is cmux free?
- Yes. It is free and open source.
- Do I need to know how to code to use cmux?
- No. Download and install it like any other app or extension.
- What does cmux work with?
- According to its own documentation, it works with Claude Code, Codex, OpenCode, Ghostty, Homebrew, and Chrome.
- What is cmux good for?
- Tracking which of several parallel coding agent sessions needs attention, organizing many terminal panes and tabs across projects, running coding agents on remote machines over SSH, and letting agents control a browser beside the terminal.
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