Agentastic vs cmux
cmux is an open-source TUI for running multiple AI coding agents in tmux-style panes. Agentastic is a native macOS workspace with the same multi-agent goal but a graphical surface — built-in editor, browser, diff viewer, and Kanban board, plus optional Docker container isolation per agent.
Who should choose each option
Agentastic
Choose Agentastic if you want a graphical workspace with editor / browser / diff and Kanban-style worktree management on macOS.
cmux
Choose cmux if you live in the terminal and want an open-source multiplexer for agents.
Feature comparison
| Agentastic | cmux | |
|---|---|---|
| Form factor | Native macOS GUI (Swift) | Terminal multiplexer (TUI) |
| Editor included | Yes | No |
| Browser included | Yes | No |
| Worktree per agent | Yes | Optional |
| Container isolation | Yes (Docker) | No |
| Open source | In progress | Yes |
| Cross-platform | macOS only | macOS / Linux |
Pricing
Agentastic
Free.
cmux
Free / open source.
Using them together
You can use cmux inside an Agentastic terminal pane, but most users pick one because they cover the same multi-agent layer.
Frequently asked questions
Is cmux just tmux for agents?
Roughly. It uses the multiplexer model to keep many agent sessions on screen. Agentastic uses a graphical workspace with separate worktrees and a diff viewer instead.
Does Agentastic work on Linux like cmux?
Not yet — Agentastic is macOS-only. Use cmux if you need Linux support.
See also
Agentastic vs Conductor
Compare Agentastic and Conductor. Both run multiple Claude Code agents in parallel on macOS. Agentastic ships …
Agentastic vs Warp
Compare Agentastic and Warp. Agentastic is a native macOS workspace for parallel coding agents with editor, br…
Agentastic vs Cursor
Compare Agentastic and Cursor. Agentastic runs 30+ coding agents in parallel git worktrees on macOS. Cursor is…