Over a period of time, the Safari browser cache on iPhone & Mac can become filled up with stale, outdated and even corrupted files, which can lead to slowing down of the web browser and cause other browser related problems.
Hence, periodically clearing the Safari browser cache can help in preventing the possibility of the Safari browser on your iPhone and Mac slowing down or running into problems.
Clear Safari Cache on iPhone & Mac
If you are good at remembering keyboard shortcuts, you can quickly clear the Safari cache on your Mac by pressing CMD + ALT + E keys on the keyboard of your computer.
In addition to this, you can clear the browser cache on Mac by enabling the Develop Menu, which makes it really easy to clear the Safari browser cache on Mac.
In the case of iPhone, the website data (cookies & cache) gets cleared when you clear browsing history and it also provides a separate option to clear website data (cookies & cache), without clearing browsing history.
1. Clear Safari Cache on iPhone
You can follow the steps below to clear only the website data (cookies & cache) on iPhone, while leaving all your browsing history intact.
1. Go to Settings > Apps > Safari.
2. From the Safari screen, go to Advanced > Website Data > tap on Remove All Website Data option.

Note: You can remove data for specific websites by tapping on the Edit option and selecting the websites.
3. On the confirmation pop-up, tap on Remove Now to confirm.
This will clear only the website data (cookies & cache) from iPhone and leave your browsing history intact.
The other way of clearing cache on iPhone is by going to Settings > Apps > Safari and tapping on Clear History and Website Data option.

This method clears both Safari browsing history and also cached data & cookies stored by various website on your iPhone.
2. Clear Safari Cache On Mac
In the case of Mac, the option to clear Safari cache is located under the “Develop” tab, which is not available by default on a MacBook. Hence, the first step is to enable “Develop” tab in the top-menu bar of Mac. ‘
Once, the “Develop” tab becomes available, you can clear the browser cache on Mac by clicking on the Develop tab and selecting Clear Cache option in the drop-down menu.
1. Open the Safari browser on your Mac.
2. Click on Safari tab in the top menu-bar and select Preferences… in the drop-down menu.

3. On the next screen, switch to Advanced tab and select Show Develop Menu in Menu Bar option.

This will enable the “Develop” tab in the top menu-bar on your MacBook.
4. Now, you can clear the Cache on your Mac by clicking on the Develop and selecting Empty Caches option in the drop-down menu.

This will clear only the Browser cache on your Mac and your browsing history will still remain available.
After clearing the browser cache, you should find a noticeable difference in the overall performance of Safari browser on your iPhone & Mac.