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AppKiller is a simple menu bar application that allows the user to quickly kill running applications. In addition, AppKiller allows the user to send any of the underlying BSD signals to any process on the system including those owned by other users, including root.

AppKiller is useful for killing or otherwise controlling processes without resorting to the command line or firing up heavier-weight applications such as Activity Monitor; of particular use if the system is experiencing performance issues. Any BSD signal can be sent.

What's New

Version 0.96:
  • Rewritten GUI: Simpler, more responsive. More intuitive sort.
  • Send Signal To Multiple Processes: Several processes can now be selected and a signal sent to all of them at once.
  • Performance: AppKiller is more responsive and places considerably less load on your system.


  • OS X 10.7 or later

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AppKiller User Discussion

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Current Version (0.x)


Downloads 4,537
Version Downloads 2,149
Type Utilities / System
License Free
Date 03 Dec 2013
Platform Intel 64 / OS X
Price Free
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