Free
Free
$0 per month for the open-source macOS app
- Local agents
- Run CLI agents with your own API keys locally
- Features
- Vertical tabs, splits, browser panels, and socket API
Finding the possibilities
cmux
● Identity checkedCode · Vendor site 2026-10-04
cmux is a free, open-source macOS terminal built on Ghostty for multitasking with AI coding agents. It adds vertical tabs, split panes, notification rings, an in-app browser, and optional cloud VMs on paid plans for remote agent sandboxes.
- Category
- Code
- Free access
- Free tier includes the native macOS terminal, local agents with your own API keys, and community support at $0/month.
- API access
- Site documents a CLI and socket API for programmatic control of tabs, splits, and browser panels.
Is cmux right for you?
A good fit for
Mac developers running Claude Code, Codex, Gemini CLI, or other terminal agents who want organized workspaces and optional cloud VMs.
Before you choose
Cloud VMs are only included on paid plans; Free accounts cannot provision remote sandboxes.
Multitasking terminal for agents
cmux organizes AI coding sessions with vertical tabs, splits, and optional cloud sandboxes for teams that outgrow a single local terminal.
What it can do
Features & capabilities
Unknown is different from unavailable. Each fact carries its own evidence.
| Capability | Value | Evidence | Checked |
|---|---|---|---|
| Agent compatibility | Homepage lists support for Claude Code, Codex, OpenCode, Gemini CLI, Kiro, Aider, and other CLI tools. | Facts sourced | 2026-10-04 |
| Notifications | Terminal panes show notification rings when agents need attention. | Facts sourced | 2026-10-04 |
| Open source | Marketing states the macOS app is GPL-licensed and free forever for local use. | Facts sourced | 2026-10-04 |
Understand the total cost
cmux pricing & plans
Pro
$50.00 /mo
$50 per month on monthly billing
- Cloud VMs
- Up to 5 cloud VMs sharing 20 vCPUs and 40 GB RAM
- Mobile
- cmux iOS app and email support
Max
$200.00 /mo
$200 per month on monthly billing
- Cloud VMs
- Up to 5 cloud VMs sharing 80 vCPUs and 160 GB RAM
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Explore toolThe practical questions
Frequently asked questions
Is the terminal really free?
Pricing FAQ confirms the macOS app is open source and free forever while cloud VMs require paid plans.
What are Cloud VMs?
FAQ describes persistent Linux cloud machines where agents clone repos and run commands without touching your Mac.
What is cmux used for?
cmux is a free, open-source macOS terminal built on Ghostty for multitasking with AI coding agents. It adds vertical tabs, split panes, notification rings, an in-app browser, and optional cloud VMs on paid plans for remote agent sandboxes.
Does cmux have a free plan?
Free tier includes the native macOS terminal, local agents with your own API keys, and community support at $0/month.. This record lists ongoing free access; check the plan limits before starting.
How much does cmux cost?
The listed monthly price is $50.00 USD at monthly billing. See the plan cards for entitlements, billing commitments and seat minimums.
Can I use cmux through an API?
Site documents a CLI and socket API for programmatic control of tabs, splits, and browser panels.. API access and subscription access may have different terms; consult the linked sources.
What should I check before choosing it?
Cloud VMs are only included on paid plans; Free accounts cannot provision remote sandboxes.
Price history
No retained pricing changes yet. A current price alone does not establish a historical trend.
How this profile is supported
Identity and profile
Reviewed vendor source
Read original source ↗Facts apply to the named version and check date. Send a sourced correction if something changed.