ccmux

Claude Code Multiplexer — manage multiple Claude Code instances in TUI split panes.

What is ccmux?

ccmux is a lightweight terminal multiplexer built specifically for running multiple Claude Code  sessions side-by-side. Think of it as tmux, but designed around the Claude Code workflow.

Why ccmux?

• Run multiple Claude Code agents simultaneously in split panes
• See your project files with syntax-highlighted preview while coding
• Stay in the terminal — no editor needed, just your shell and Claude
• Blazingly fast & lightweight — single ~2MB binary, 0.5s startup, ~0% idle CPU
• Built in Rust — zero-allocation cell rendering, dirty-flag diff updates, PTY resize caching

Quick Start

npm install -g ccmux-cli
ccmux

Once running, type claude in the terminal pane to start Claude Code.

Key Features

• Multi-pane splits — Vertical and horizontal, up to 16 panes
• File tree + preview — Browse and preview files with syntax highlighting
• Tab workspaces — Independent workspaces per tab
• Claude detection — Pane border turns orange when Claude is running
• Text selection — Drag to select, auto-copy to clipboard
• Scrollback — 10,000 lines of history per pane

Learn Claude Code

Want to learn Claude Code systematically? Check out Claude Code Academy.