Mac Task Killer: Kill Any App in One Shot

A task killer for Mac ends an app's process on the spot, even when it is frozen. macOS ships one built in (Activity Monitor), but the fastest is MEGAKILL: hold a shortcut, your cursor becomes a shotgun, and one shot on a Dock icon or window force-quits the app instantly.

If you moved to a Mac from Windows or Linux, "task killer" is probably the first thing you searched for the moment an app locked up. macOS has the tools, it just calls them different names and buries them a little. Below is the honest rundown: what the Mac already gives you, and the one-click way MEGAKILL adds on top when you want an app gone without digging through menus.

Does the Mac have a built-in task killer?

Yes. macOS has two ways to end a stuck app without any extra software. The first is Activity Monitor, the built-in task manager that lists every running process. Select an app, click the X in the toolbar, and choose Force Quit to kill it. The second is the Force Quit window: press ⌥⌘⎋, pick the app that macOS marks as "(not responding)", and hit Force Quit. Both are reliable and both are the standard way to force quit an app that ignores ⌘Q. The catch is that neither is fast. You leave what you are doing, open a window, hunt for the right process, and click through a confirmation. That is fine once in a while, less fun when apps hang on you all day.

MEGAKILL: the one-click task killer for Mac

MEGAKILL turns the whole routine into a single shot. It lives in your menu bar and stays out of the way until you need it. Hold the shortcut and your cursor becomes a DOOM-style double-barrel shotgun. Point it at an app's Dock icon or one of its windows, click, and that app force-quits instantly, no window to open and no process list to scroll. Right-click to reload, two shots per reload. Each kill adds to your streak (KILL, DOUBLE KILL, MEGA KILL), the screen shakes, and a real shotgun blast fires. It is the same "end the process now" that Activity Monitor does, wrapped in one click and a lot more fun.

How it works

Three steps, and the third one is the whole point.

1. Hold the shortcut. Press and hold ⌥⌘ (the default, changeable in the menu). Your cursor turns into the shotgun.
2. Aim. Point at the Dock icon or a window of the app you want gone.
3. Fire. Click. The app force-quits on the spot.

There are two ways to shoot. A normal shot kills the whole app. Flip on wound mode from the menu and a shot on a single window closes just that window and leaves the app running, while a shot on the Dock icon still kills the whole app. A safety shield keeps you from wrecking anything: Finder, the Dock, and critical system processes are ignored, so the shotgun simply will not fire on them.

MEGAKILL vs Activity Monitor vs Terminal

All three end an app's process. They differ in how much work it takes and where you can do it from.

Safe by design

Ending processes with a shotgun sounds reckless, so MEGAKILL is built to stop you from hurting your Mac. It is a notarized Developer ID app, which means Apple has checked it and macOS opens it without a fight. More important day to day: Finder, the Dock, and critical system processes are shielded. Aim at one of them and nothing happens, the shot simply does not land. So you can blast away at ordinary apps, the frozen ones and the annoying ones, without the fear of accidentally killing something your Mac needs to keep running.

Price: 100 free kills, then €1.99 once

MEGAKILL is free for your first 100 kills, which is plenty to feel whether it fits the way you work. After that, a one-time €1.99 purchase unlocks unlimited kills. No subscription, no monthly anything: you pay once and it is yours. It runs on macOS 14 (Sonoma) or later.