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cmux for Mac

Ghostty-based terminal workspace with vertical tabs, browser import, custom commands, and automation APIs for AI coding workflows.

By manaflow-ai. Free and open source.

Get it with OpenDMG View source on GitHub

cmux at a glance

Version
(pre-release)
Released
11 October 2026
Download size
122 MB
Works on
Apple silicon and Intel
Category
Audio and Music
Developer
manaflow-ai
GitHub stars
28K

About cmux

Open source Ghostty-based macOS terminal with vertical tabs and notifications for AI coding agents. Built for multitasking, organization, and programmability.

Screenshots

cmux screenshot 1cmux screenshot 2

How to install cmux on a Mac

  1. Get OpenDMG. It is a free app store for open source Mac apps. Download OpenDMG.
  2. Search for cmux and press Get. OpenDMG downloads version from manaflow-ai's own GitHub release.
  3. Open it. The download is checked against its SHA-256 fingerprint and its signature is checked on your Mac before it lands in Applications.

Updates to cmux show up in OpenDMG and install with one button. No account is needed.

Prefer to do it by hand? The developer's file is on GitHub: cmux-NEXT-DEV.zip (122 MB).

What is new in cmux 

Rolling cmux NEXT DEV Release build from feat-cmux-next commit 4bfbe15c03838d8102a466daa2b59299eff486ef.

This channel is Developer ID signed and intentionally not notarized; download with curl or gh so macOS does not add quarantine.

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