For multi-display Macs

Windowlayouts thatrememberthe room.

MasterSpaces is a focused menu bar utility for snapping the frontmost window, saving repeatable layouts, and rebuilding workspaces with apps, files, websites, and scripts.

Local-first Accessibility explained Multi-monitor aware

Release status Get support

Direct-download release candidate. Public download URL appears here after notarization and clean-machine QA pass.

Topology desk 3 displays / 1 remembered setup

DesignLeft half DocsTop third ChatRight rail BuildMaximized

Next snap Pointer display → Odyssey G95C Drag edge preview stays on the room you are actually using.

Local-first Layouts and preferences stay on your Mac unless you export them.

Accessibility-aware Permission is used to read and move windows, with onboarding explaining why.

Multi-monitor ready Snapping chooses the display under the pointer during drag-to-edge flows.

The daily loop

Snap, save, restore, then get back to work.

MasterSpaces keeps the everyday window chores close to the menu bar. Use a preset, drag to an edge, save the arrangement, and restore it later when your desk gets noisy again.

Snap without hunting

Apply halves, thirds, quarters, sixths, maximize, center, and display-aware moves from the menu bar or shortcuts.

Save layouts by context

Capture useful arrangements globally, per app, or inside custom layout sets for recurring projects.

Launch the workspace

Bundle layouts with apps, documents, websites, scripts, delayed launches, and restore variants.

Recover guidance anytime

Reopen onboarding, Tips & Quick Start, and Settings guidance when permissions or workflows need a reset.

01 Grant once

Onboarding explains Accessibility before asking you to move windows.

02 Snap the room

Use menu actions, shortcuts, or drag-to-edge previews on the active display.

03 Save the ritual

Keep the arrangement as a layout or attach it to workspace resources.

04 Restore calmly

Bring the setup back without pretending macOS Spaces are being controlled.

Real product surfaces

Current app UI, not imagined future screens.

MasterSpaces menu bar quick actions panel with snapping and utility commands — Menu bar controls for snapping, workspaces, topology, settings, and recovery actions.

MasterSpaces onboarding window with permission and quick-start guidance — First-run onboarding explains Accessibility, first snap, save layout, and Workspace Library.

MasterSpaces settings window with guidance and preferences panes — Settings keep shortcuts, drag zones, guidance, and multi-monitor behavior inspectable.

Scenarios

Built for the moments where window placement eats the first five minutes.

Before coffee

The morning reset

Open your coding resources, restore the editor and terminal layout, then stash the distraction window just offscreen.

After docking

The monitor shuffle

Move from laptop-only to an ultrawide plus side display without forcing old saved layouts onto unrelated screens.

Deep focus

The review pass

Snap docs, preview, chat, and notes into repeatable regions, then save the setup as a reusable review layout.

Truth in the footer, not fine print

What MasterSpaces does not claim yet.

It does not create, delete, or manage native macOS Spaces.
It does not include the future AI assistant in the current release candidate.
It does not send analytics, workspace data, or layout content to a cloud service.