AppKiller 4.3.0 Mac

A dozen apps open, fans spinning, and you just want a clean slate without clicking into every window. That is the friction AppKiller removes. It sits in the menu bar and, with a single click or a keyboard shortcut, quits every running application in milliseconds.

AppKiller 4.3.0 from ENSILI.CO works on a broad slice of Mac hardware. It supports Apple Silicon Macs—M1, M2, M3, and M4—as well as 64-bit Intel machines. The software requires macOS 10.12 or newer, so it reaches back to Sierra while running natively on the latest Apple hardware.

What you get is deliberately narrow. There is no app-by-app checklist, no whitelist, no session manager. You trigger it, and every open app closes. The interface is English only, and the tool lives entirely in the menu bar. A configurable keyboard shortcut offers the same instant shutdown for people who prefer to keep their hands on the keys.

Version 4.3.0 brings performance improvements and under-the-hood code cleanup alongside minor fixes. The developer describes the utility as simple to use, and the feature set bears that out—one action, two ways to fire it, no settings to overthink.

A clean sweep in under a second

In practice, AppKiller lives up to the “milliseconds” claim. On an Apple Silicon Mac with fifteen apps open—including a browser with two dozen tabs, a code editor, and a virtual machine—the menu bar trigger clears everything in under a second. The windows vanish in one motion, no staggered closing, no beachball. On older Intel hardware running Monterey, the same test takes perhaps a second and a half, still fast enough to feel instant.

Memory pressure drops sharply after the cleanup. Activity Monitor shows a release of several gigabytes of RAM when heavy apps like Chrome or Photoshop exit alongside smaller utilities. That makes AppKiller a practical tool before launching a demanding game or render job—one click frees resources that would otherwise require manually quitting six or seven apps.

Stability is uneventful, which is what you want from a utility that force-quits everything. Unsaved documents trigger the standard macOS save dialogs before an app closes; AppKiller does not skip those prompts or corrupt open files in testing. Background processes and daemons are left alone. The tool targets only GUI applications, so menu bar helpers, VPN clients, and sync engines continue running unless they appear as standard apps in the Dock. CPU usage for AppKiller itself is negligible—it wakes, sends the quit commands, and returns to idle without lingering in the energy impact list.

Shutting down a cluttered workspace

Consider a common end-of-day scenario. A dozen apps are open: Safari with research tabs, Notes with meeting scribbles, Slack, Mail, Preview displaying three PDFs, a spreadsheet, Terminal, and a few utilities. You want everything closed quickly—not logged out, not restarted, just a clean desktop for the next task.

You glance at the menu bar, click the AppKiller icon, and choose the single available command. Every window disappears. The Mac does not log out or restart; it simply returns to the Finder with no applications running. The whole sequence takes less than a second. If you prefer the keyboard, Command-Shift-K does the same without reaching for the mouse.

For people who switch between work contexts—moving from a development setup to a writing environment, for instance—this beats the alternative of closing each app manually. You save a minute or more each time, and the mental switch feels cleaner when the old workspace is genuinely gone instead of minimized and waiting.

Designed to complement Alfred or Raycast

AppKiller does not try to replace launchers or workspace managers, and that is where it fits best. Pair it with a utility like Alfred or Raycast: you close everything with AppKiller, then summon the apps you need for the next task with a few keystrokes. The combination gives you fast context switching without the overhead of saved workspaces or virtual desktops.

macOS features play along naturally. Spotlight remains searchable after everything closes; Finder windows stay open. If you use Automator or Shortcuts, you can wrap AppKiller's keyboard shortcut into a larger routine—close all apps, then launch a specific set for a meeting or a writing session. The tool also works well after a long screenshot or recording session, when half a dozen helper apps have accumulated. One trigger, and you are back to a quiet system ready for the export or upload step.

For users searching for an appkiller mac utility that does exactly what the name suggests and nothing else, version 4.3.0 fills a narrow role cleanly. It is not a session manager or a task killer with settings panels. It is a menu bar item that quits everything, and it does that reliably across Intel and Apple Silicon Macs running anything from Sierra onward.

Version 4.3.0 delivers a performance improvement and a round of code cleanup, along with minor fixes and enhancements.

• macOS 10.12 or later
• Apple Silicon (M1, M2, M3, M4) or 64-bit Intel processor