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CoreTamer
CoreTamer
macOS

Keep CPU-hungry apps under control

Give CPU-hungry apps a limit. Right from your menu bar, for individual processes or with one shared budget for an entire app group.

Download on GitHubSource code
Free & open source
CoreTamer process list with CPU usage and limits
Actual app screenshot · cropped

What CoreTamer does for you

One process or the whole app

Limit one process or an app together with its attributed helpers.

Right in your menu bar

Find processes and adjust their CPU limits in one place.

For your processes

No admin rights needed. System processes and other users’ processes remain read-only.

Get started

  1. Install CoreTamer from the latest GitHub release.
  2. Select one of your apps or processes.
  3. Set the CPU limit and choose its scope.

If macOS initially blocks the app, follow the current installation notes in the README.