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cmux

cmux.comCLI tools & terminal

PulseGate's liveness check found it on 12 Oct 2026; it has been in the index since 30 Jun 2026. How this is checked

cmux is a free and open source native macOS terminal built on Ghostty. It is described as a terminal for multitasking, organization, and programmability, with features such as vertical tabs, notification rings, split panes, and a CLI for automation. The interface is aimed at keeping terminals, agents, and related activity visible and controllable in one place.

Inferred · not functionally tested

Open SourceCLImacOSAPISelf-hosted
cmux preview
Visit cmux.com
23.2kstars
1.8kforks
9features
2026since

Overview

6 features

Purpose: Managing multiple terminal sessions and AI coding agents without losing track of their activity.

Inferred · not functionally tested

Audience: developers using terminal-based coding agents

Inferred · not functionally tested

Functions: collaboration, workflow_automation

Inferred · not functionally tested

Interfaces: API: indicated (inferred, not tested) · MCP: unknown · CLI: indicated (inferred, not tested) · Self-hosting: indicated (inferred, not tested)

Recorded constraints: pricing: open_source · license: Open Source · platforms: DESKTOP, API, CLI · deployment: cli, macos, api_only, self_hosted

Constraint provenance is unknown; confirm requirements with the publisher.

Record sources: cmux.com. These links do not verify the individual claims.

In the CLI tools & terminal space, cmux takes a focused approach. Inferred · not functionally tested: It focuses on managing multiple terminal sessions and AI coding agents without losing track of their activity. Inferred · not functionally tested: It is built as an open-source project for developers using terminal-based coding agents. Basis unknown · not verified: The project is open source (Open Source). Basis unknown · not verified: It ships for the command line, macOS, and API, and it can be self-hosted.

cmux first shipped in 2026. Development happens publicly on GitHub with 23.2k stars and 3.4k commits in the last 90 days. Inferred · not functionally tested: Key capabilities include vertical tabs, notification rings, and split panes. The interface is available in 19 languages, including Arabic, Bosnian, and Danish.

Summary written by a language model from the project’s public pages.

Tasks: Inferred · not functionally tested

  • Vertical tabs
  • Notification rings
  • Split panes
  • In-app browser
  • CLI automation
  • Socket API

Topics: Inferred · not functionally tested

Tags
macos-terminalai-coding-agentsvertical-tabsterminal-multiplexingghostty
AI capabilities
Code
Weights: Open

JSON profile · Text profile · Access guide

Built with & integrations

Framework
Next.jsReact
Hosting
Vercel
AI providers
anthropic
Written with
Claude CodeCursor
Runs on
CLImacOSAPI-onlySelf-hosted
Written with — evidence
Claude Code
commit dacc58975b43 · since Sep 2026
Cursor
.cursor/
Detected from
Next.js
/_next/static/ in the HTML · __next_f in the HTML
Vercel
x-vercel-id header · x-vercel-cache header

Trust & compliance

License
Open Source
Public signals
HTTPSOpen SourceFree tierActive maintenanceMulti-language

Indexing history

1

What PulseGate has recorded for this listing

  1. Indexed11 Sep · 15:56 UTC
    I used 367B tokens in 30 days seen via Hacker News firehose (Algolia)
    Source: Hacker News firehose (Algolia) · Open

Frequently asked questions about cmux

What does cmux do?
Inferred · not functionally tested: Cmux focuses on managing multiple terminal sessions and AI coding agents without losing track of their activity. It is catalogued under CLI tools & terminal on PulseGate.
Who should use cmux?
Inferred · not functionally tested: cmux is an open-source project built for developers using terminal-based coding agents.
Does cmux have a free plan?
Basis unknown · not verified: Yes — cmux is open source under the Open Source license and free to use.
What platforms does cmux run on?
Basis unknown · not verified: cmux runs on the command line, macOS, and API. It can also be self-hosted.
Is cmux still active?
PulseGate's liveness check found it on 12 Oct 2026. Its GitHub repository shows 3.4k commits in the last 90 days.
What are alternatives to cmux?
Similar projects tracked by PulseGate include cmux, PonyMux, and wmux.cmuxPonyMuxwmux
How long has cmux been around?
cmux first shipped in 2026.
Is cmux open source?
Basis unknown · not verified: Yes — cmux is open source under the Open Source license.

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