Clear all open windows instantly with a single click or keyboard shortcut

Minimal, native macOS menu bar interface, always available and never in the way

Use the smart lock system to protect specific apps from being closed

Watch in action

Key benefits

Lock specific apps so they're never affected by a close-all action
Background and menu bar apps are protected by default, configurable in Settings
Closes all windows across every app in under 2 seconds
Force-quits unresponsive apps when needed (Option+Click)
Global shortcut set to ⌘⇧⌥W, fully customizable
Lightweight native Swift app with zero performance impact

Use cases

End your workday with a satisfying clean slate instantly
Reset your workspace between different projects without quitting your tools
Force-close stubborn apps that won't respond to standard close requests

Privacy

All processing happens on-device.

Not collected: location, contacts, browsing history, personal data

Pricing

paid

What's new

v1.0.0 2026-01-03

Initial release with smart locking, global shortcuts, and notarized binary.

FAQ

Will it quit my apps?

WindowCloser has two modes. Close All sends a standard quit signal to every unprotected app, just like pressing Cmd+Q. Apps with unsaved work will prompt you to save first. Nuke All force-quits everything immediately with no prompts, the same as Force Quit in Activity Monitor. Finder windows are included by default but you can turn that off in Settings. Normal apps are unprotected by default so they will be closed. Background and menu bar apps are protected by default so they will be skipped. Any app you manually protect stays protected across sessions.

Does it work with multi-monitor setups?

Yes, WindowCloser will close all windows across all your displays simultaneously.