# Carbon

> Carbon is a free, open-source macOS app for running coding agents: Claude Code, Codex, pi, fx and Grok Build. It runs the official agent CLIs on your existing subscriptions, many sessions at once, on your Mac or on remote machines.

## Features

- Parallel sessions: run many agents at once, each optionally in its own git worktree.
- Orchestration: agents start and message other sessions through the `carbon` CLI, and can have a second model review their work.
- Remote machines: run agents on a Linux server or another Mac, driven from the Mac app. Sessions keep running after the app quits.
- Pull requests and issues: checks, review comments and merge beside the chat. Start sessions from GitHub or Linear issues.
- Built-in browser: agents open, test and screenshot your dev server. `carbon share` gives it a public link.
- Notch: from any app on your Mac, dictate to a session, read and reply to it, answer its questions and approve tool calls.
- Dictation: on-device speech to text, in the app or from the notch.
- Privacy: your data stays on your machine.

## FAQ

- Is Carbon free? Yes. Apache 2.0.
- Is Carbon safe to use with a Claude subscription? Yes. Carbon runs Anthropic's own Claude Code CLI, so it works within Anthropic's terms.
- Does Carbon run on Linux? Yes, as a server, driven from the Mac app.

## Links

- [Download for Mac](https://carbonhq.sh/download)
- [Install on a server](https://carbonhq.sh/install.sh): `curl -fsSL https://carbonhq.sh/install.sh | sh`
- [GitHub](https://github.com/matthieu-pm/carbonhq)
- [Docs](https://carbonhq.sh/docs)
- [Docs llms.txt](https://carbonhq.sh/docs/llms.txt): every docs page, one line each.
- [Changelog](https://carbonhq.sh/changelog)