The best open source alternative to Advanced Task Manager is Chrome Reaper. If that doesn't work for you, our users have ranked eight alternatives to Advanced Task Manager, but unfortunately only one of them is open source. If you can't find an alternative you can try to remove all filters.
Automatically ends browser processes in Chrome or Chromium using too much CPU, including tabs, extensions, subframes, renderers, and even background scripts, to prevent resource drain, combat cryptomining, boost stability, and maintain smooth browsing.
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