AppKiller 4.3.0 — Mac version

Cmd+Shift+K and you’re back to a clean desktop. AppKiller lives in your menu bar and quits everything that’s open, all at once.

Menu bar utility — sits in the status menu, out of the way until you need it.

Close all apps — quits every open application. No picking through windows, no clicking a dozen red dots.

Keyboard shortcut — Cmd+Shift+K triggers the same mass quit. Hands stay on the keys.

Who it’s for — anyone who finishes a task and finds fifteen apps still running. Photo editors with six helper tools open. People who demo software and need a clean slate between takes. Anyone who just wants the Mac to breathe.

It’s a single-purpose tool that does one job in milliseconds. No settings panel, no dock icon. The menu bar icon changes briefly to show it worked, then goes quiet again. Works on Intel Macs and Apple Silicon machines back to macOS 10.12.

Shutting down for the day — a 30‑second routine

End-of-day clutter builds up without you noticing. Preview has three PDFs open. Safari holds a dozen tabs you meant to read. Spotify is paused. An installer window hides behind everything. Quitting them one by one takes ages. Here’s a routine that takes half a minute.

1. Save anything unsaved. AppKiller quits apps cleanly — documents that know about autosave will prompt you, but don’t rely on it.
2. Hit Cmd+Shift+K. Watch the windows vanish.
3. Glance at the menu bar icon. If it flickered and returned to its resting state, the job is done.
4. Check the Dock. No dots under any icon means you’re clear.
5. Close the lid or walk away.

The whole thing is muscle memory after a couple of days. You stop thinking about it — which is exactly the point of a utility like this.

Thinking the desktop quits too

Forgetting the Finder doesn’t quit. AppKiller closes applications, not the Finder itself. A few people install it and wonder why their desktop didn’t go blank. That’s normal. The Finder stays running — without it you’d have no desktop at all.

Hitting the shortcut twice. The animation is subtle. If you’re not watching the menu bar icon, you might think nothing happened and press Cmd+Shift+K again. The first press already did the work. Learning to trust the flicker saves you from reopening apps you didn’t mean to touch.

Leaving Terminal or an unsaved text file open. AppKiller asks apps to quit politely. An app with unsaved changes will put up a dialogue. If you walk away expecting a clean desktop, you might come back to a “Save changes?” prompt blocking everything. Do a quick visual sweep before you trigger it.

Stick a note for the shortcut

Give the shortcut a day or two to sink in. Stick a sticky note on the edge of your screen with “Cmd+Shift+K” written on it. By Wednesday you won’t need it.

Try it after a big task. Finished editing a batch of photos? Closing six Adobe helper tools plus Bridge plus your raw processor feels absurdly satisfying in one keystroke. That moment alone sells the app.

If you use another utility that grabs Cmd+Shift+K, the shortcut won’t fire. The fix is simple — the menu bar menu still works. Click the icon, pick the quit command, and carry on. You can change conflicting shortcuts in the other app later.

An appkiller mac habit also pairs well with a quick restart routine. Quit everything with the shortcut, then choose Restart from the Apple menu. The machine comes back fresh, with nothing auto-relaunching from the last session. Clean slate, every time.

• Performance improvement
• Code cleanup
• Minor fixes and enhancements

• macOS 10.12 or later
• Intel 64-bit or Apple Silicon Mac