Side by side
| Overvibe | cmux | |
|---|---|---|
| Platform | macOS only. A local web page on 127.0.0.1 behind a token, plus an optional desktop app wrapper | macOS desktop app (Swift/AppKit), iOS app in beta Source |
| Which agents | Claude Code, OpenAI Codex CLI, agy (Google Antigravity CLI) and plain terminals | Any agent that runs in a terminal: Claude Code, Codex, OpenCode, Gemini CLI, Aider, Amp, Cursor Agent and more Source |
| Real CLI in a terminal or its own UI | The real CLI in tmux, shown with xterm.js in the browser. Its auto mode, slash commands, skills and hooks work unchanged | The real CLI in a native terminal pane Source |
| Agent-to-agent messaging | Yes. The overvibe CLI lets an agent start another agent (overvibe new --tool codex --attach), message it (overvibe send) and stop its children | No built-in messaging; its CLI and socket API can send input and read screen contents, and it shows Claude Code teammates as panes Source |
| Local-only | Yes. No cloud, no account, no telemetry | Runs locally; the privacy policy lists Sentry crash reports and product analytics events for the app Source |
| License | MIT | GPL-3.0-or-later (server parts under BSL 1.1) Source |
| Price | Free | Free; optional cmux Pro for early access to iOS, cmux AI and cloud VMs Source |
| Worktrees / isolation | Overvibe does not manage git worktrees. Each session runs in the folder you pick | Not built in per its README; the sidebar shows each workspace's git branch Source |
Where cmux is the better pick
- A full native terminal app with GPU rendering that reads your Ghostty config.
- Works with any terminal agent, not only three.
- A scriptable browser pane next to the terminal for agents to test web pages.
- SSH workspaces and an iOS app for reaching sessions from a phone.
Where Overvibe is the better pick
- Agents get one command to start another agent and send it a message, with replies routed back.
- Choice prompts on an agent's screen are read and shown as dialogs you answer with a click.
- Several Claude accounts, chosen per folder.
- No analytics or crash reporting leave your Mac.
Questions
Is Overvibe an alternative to cmux?
They overlap for watching many agents on a Mac. cmux is a terminal emulator with agent notifications. Overvibe is a browser page over tmux that knows which project each session belongs to, surfaces its prompts and lets agents talk to each other.
Does cmux work with Codex?
Yes. cmux runs anything you can launch in a terminal, and its README shows a hooks setup for Codex notifications.
Can I open Overvibe sessions from cmux?
Yes. overvibe attach "
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