localhost:3000/checkout
Parallel Development, Managed
Stop Hunting for Tabs.
Start Building Features.
Muxy reduces the hidden tax of parallel work: context hunting, app hopping, port conflicts, and accidental interruptions.
Speed is no longer about typing code faster
It's about managing context effectively
- "Where is the tab for the checkout page?"
- "Port 3000 is already in use."
- "Which terminal is running the dev server again?"
Context gets scattered, then lost
A single feature ends up scattered across terminal tabs, editor windows, and browser sessions — with no shared structure tying them together.
Switching apps often lands you on the wrong window. Tracing a UI bug becomes a reverse lookup exercise: from page → repo → terminal → agent.
What was I working on again?
Working on multiple projects at once is hard. Worktrees make it even harder.
Meanwhile, small frictions compound
- Port collisions quietly break local flows
- Active work disappears into window chaos
- Context switching erodes focus
- Wrong processes get killed accidentally
- Prompt is entered into the wrong terminal
The more parallel your workflow becomes, the more your environment fights you.
Introducing Muxy
Muxy organizes your terminals, browser tabs, and editors into worktree and project-specific workspaces.
Switch between branches and tasks instantly—without port collisions or lost context.
Without Muxy
- 1
Find UI Tab
Track down the browser tab for the right feature/project.
- 2
Find Editor
Locate the matching editor window.
- 3
Find Agent
Figure out which terminal/agent session made the change.
- 4
Port Collisions
Resolve :3000 collisions and update port references for relatedservices.
Result: context hunt before real progress begins.
With Muxy
- 1
Open Workspace
Jump straight to the workspace for this feature.
- 2
Open Window
Bring up its browser/editor/terminal/agent with a keyboard shortcut.
- 3
Cycle Fast
Switch within that workspace using keyboard shortcuts.
- 4
Stable Ports
Use workspace-owned ports and env without drift.
Result: stay within context, faster development loop.
How It Works
Three steps, one loop
Muxy organizes parallel work around workspaces, then lets you move through them with predictable shortcuts.
01 Select
Choose the workspace tied to the feature or branch you need to check in on.
02 Jump
Open the right browser, editor, or terminal window for that workspace instantly with a keyboard shortcut.
03 Continue
Cycle through only the windows of that workspace with keyboard shortcuts.
In Action
A repeatable loop, not a window hunt
Workspace boundaries stay clear. Switching between them stays fast.
checkout-flow
Branch: feature/checkout
CMD+1
npm run dev
CMD+2
pnpm test --watch
CMD+3
localhost:3000/checkout
CMD+4
app/checkout/page.tsx
pricing-update
Branch: feature/pricing
CMD+1
pnpm test --watch
CMD+2
localhost:3001/pricing
CMD+3
app/pricing/pricing-card.tsx
bugfix-redirect
Branch: fix/auth-redirect
CMD+1
codex --resume
CMD+2
localhost:3002/login
CMD+3
app/auth/redirect-handler.ts
bugfix-redirect
fix/auth-redirect
localhost:3002/login
app/auth/redirect-handler.ts
1819202122
codex --resume
$ codex --resume
ready on :3001
watching changes...
_
Key Features
Built for parallel streams of work
Muxy manages repos, worktrees, ports, processes, and windows. So you can focus on your work.
Manager mode for coding agents
Track all your coding agents in one place. Get notified when an agent is waiting on you. Use keyboard shortcuts to quickly navigate between them.
Manage Git worktrees. Or not.
Create and run isolated workspaces per branch so parallel feature work does not collide. Prefer separate checkouts instead of worktrees? Muxy works great for that too!
Organize work into virtual workspaces
Muxy organizes your terminals, browser tabs, and editors into worktree and project-specific workspaces. Switch between branches and tasks instantly—without port collisions or lost context.
Reserved ports per workspace
Each workspace gets named reserved ports as environment variables (e.g. $FRONTEND_PORT, $BACKEND_PORT) so services can run side by side without recurring port conflicts.
Switch between workspaces with ease
Jump between active workspaces quickly without needing to sort through dozens of browser/editor/terminal windows.
Switch between windows of the current workspace
Cycle through the current workspace windows with deterministic shortcuts, instead of hunting across apps.
Context tooltips
Ask your coding agent to set a workspace tooltip so you always have context when you switch in. Press cmd+shift+i to toggle it on/off when looking at any window belonging to the workspace.
Start and stop quickly
No need to keep those tabs open or processes running just because it is a pain to set it all up again. Muxy manages starting and stopping for you automatically.
Bring your own tools
Muxy works with your preferred stack, whether it is Claude Code or Codex, Cursor or Windsurf. You do not need to learn a new tool or settle for a weaker coding agent just for UX.
Native MacOS app under 5 MB
Built with Swift and AppKit — not Electron. No bloated runtime, no sluggish UI. Muxy stays out of your way and off your CPU.
FAQ
Common questions
How much does it cost?
Muxy is free!
What are the system requirements?
What is yabai? Why does it need accessibility permissions?
yabai is an open-source macOS window management utility. Muxy uses it to bring the right window to the front when you switch workspaces. macOS requires accessibility permissions before any app can programmatically control windows on behalf of other processes — yabai uses this to perform focus switching on Muxy's behalf.
Can I use it with CLI coding agents like Claude Code or Codex CLI?
Yes. Open a terminal inside any workspace with ⌘⇧T and start your agent as normal. The terminal window is automatically attached to the workspace so you can jump back to it with keyboard shortcuts at any time. To let the agent set workspace tooltips and signal its status, add the Muxy agent instructions to your project's AGENTS.md. See the cookbook guides for step-by-step setup.
Can I use it with the Codex app?
Yes. Muxy works alongside the Codex app — it automatically imports Codex worktrees as workspaces. See the cookbook guides for a detailed walkthrough.
Can I use it with Conductor?
Yes. You can use Conductor to create worktrees and write code. Muxy will automatically import them as workspaces so you can manage windows and context with Muxy. We recommend using Muxy setup scripts and processes to configure workspaces and leaving Conductor setup and run scripts empty. See the cookbook guides for a detailed walkthrough.
Do you collect any data?
No. Muxy is a native desktop app that runs entirely on your Mac. It does not send any data back to Muxy or any third party.
Where do I send bug reports?
Email support@muxy.dev.
Build faster with Muxy
Muxy helps you build faster by managing context and reducing chaos.