multiplexer active

cmux

Maker: manaflow-ai License: GPL-3.0-or-later Stars: 26.3k First released: 2026-01-28 Language: Swift
CLI

About

cmux argues that the right primitive for parallel agent work is a terminal that understands agents rather than another orchestrator: panes get attention rings when an agent needs input, tabs surface branch and PR metadata, and agent subagents appear as native panes. It embeds libghostty as a rendering library rather than forking Ghostty, so existing configs carry over, and a scriptable browser pane lets agents verify web UI changes they just made. Sessions restore across restarts, an iOS app allows monitoring from a phone, and a CLI/socket API makes it scriptable. With tens of thousands of stars it is the most prominent macOS-native agent terminal in this census.