Rectangle

Rectangle is a free, open-source window management app for macOS that lets you organize windows using keyboard shortcuts. Based on the discontinued Spectacle app, Rectangle provides essential window snapping functionality - halves, quarters, thirds, center, maximize - through customizable shortcuts, bringing Windows-style window management to Mac without cost or subscriptions.

Best For: Mac users who want simple, reliable window snapping via keyboard shortcuts without paying for premium window managers or complex tiling systems.

Key Features

What window arrangements does Rectangle support?
Snap windows to left/right halves, top/bottom halves, quarters (four corners), thirds (horizontal and vertical), two-thirds, center, maximize, and almost maximize (preserves menu/dock access). Cycle through sizes by repeating the same shortcut. Works across multiple displays with specific shortcuts for moving between monitors.

How customizable is Rectangle?
Every shortcut fully customizable. Enable/disable specific actions. Adjust window padding and gaps. Configure which apps to ignore. Choose between repeated shortcuts cycling sizes vs. fixed positions. Import/export settings for consistency across machines.

Is Rectangle actively maintained?
Open-source with active development on GitHub. Regular updates for macOS compatibility. Community-driven feature requests and bug fixes. Modern codebase (unlike some older alternatives). Notarized for macOS security. Native Apple Silicon support.

What makes Rectangle different from paid alternatives?
Completely free with no limitations or premium tiers. Open-source code can be audited and modified. Focused on core window snapping (not overcomplicated). Lightweight with minimal system resource usage. No subscription or one-time purchase required.

Pricing & Plans

Free: All features, open-source, no limitations, no ads

Completely free forever. Optional donation to support development. No paid tiers or feature restrictions.

Limitations

• Less advanced than paid options like Magnet or Moom (no custom layouts)
• No visual window previews or drag-to-snap zones
• Keyboard-only operation (no mouse-driven snapping)
• Simpler feature set than complex tiling window managers

Getting Started

1. Download Rectangle from rectangleapp.com or GitHub
2. Grant accessibility permissions in macOS System Preferences
3. Learn default shortcuts (Ctrl+Option+Arrow for halves)
4. Customize shortcuts to your preference
5. Use repeatedly to cycle through window sizes

Learn More: rectangleapp.com