How To Clear System Data On Mac

Over time, your Mac accumulates a lot of data. Sometimes, this data consists of unnecessary files or system storage that can slow down your device. If your Mac is running slower than usual or you’re running low on storage space, it may be time to clear out some of this system data. In this blog post, we’ll guide you on how to do this.

Understand What System Data Is

System data on your Mac includes cache, log files, system backups, and other data that helps your system run smoothly. While these files are important for your Mac’s operation, over time, they might grow excessively large and take up significant space. When this happens, it’s safe to clear some of this data to free up storage space.

Clearing Cache Files

Cache files are created by apps to store temporary data. Over time, these files can take up a lot of space. Here’s how to clear them out:

  1. Open Finder and select Go in the menu at the top of your screen.
  2. Hold down the Option key (marked ‘Alt’) and you’ll see a Library option appear in the drop-down menu. Click on it.
  3. Once you’re in the Library folder, look for a folder named Caches.
  4. Select all files and folders within the Caches folder. Drag them to the trash or right-click and select Move to Trash.

It’s important to note that some app’s cached data will be recreated when you use the app again. This is normal and shouldn’t be a cause for concern.

Removing Log Files

Log files are records of different system or app events. They’re useful for debugging, but they can also take up space unnecessarily. To remove these files, you can follow the same steps as above, but look for a folder named Logs instead of Caches.

Using Cleaning Utilities

Another option to clear system data on your Mac is to use cleaning utilities. These apps can automate the process and help you clear system data efficiently. Some popular ones include OnyX, CleanMyMac, and MacBooster.


Clearing system data on your Mac can free up space and help your system run more smoothly. It’s a simple process that can be done manually or with the help of cleaning utilities. Always remember to backup important files before starting the cleaning process, as deleting certain files could cause issues with your system or apps.