How to free or clear system data on Mac as it takes too much space

I understand how frustrating it can be when your Mac's storage is almost full, especially when "System Data" (also called "Other" in some versions) takes up so much space. Here's a clear, step-by-step guide to help you identify and safely clear system data on Mac.

You can try this.

Step 1: Check What's Taking Up Space

    Click the Apple menu () and select About This Mac.

    Click on the Storage tab.

    Click Manage... to see a detailed breakdown.

Step 2: Delete Time Machine Local Snapshots

    Your Mac automatically keeps local backups which can grow large.

How to delete local snapshots for clear system data on Mac:

1. Open Terminal:

Go to Applications > Utilities > Terminal.

2. Type the following command and press Enter:

sudo tmutil listlocalsnapshots /

This will list local snapshots.

3. To delete all local snapshots, type:

sudo tmutil thinlocalsnapshots / 999999999999 4

Or, to delete a specific snapshot, use:

sudo tmutil deletelocalsnapshots <snapshot date>

For example: 2023-10-01-123456.

4. Enter your password when prompted.

Note: These snapshots are safe to delete; your Time Machine backups are stored externally and won't be affected.