How to Clear Safari Documents and Data: 4 Methods That Freed Up 12GB on My iPhone

The storage wake-up call. Last month, I got the dreaded "iPhone Storage Full" notification. When I checked what was taking up space, Safari Documents & Data was sitting at 12.3GB – more than all my photos combined. After testing every method on my iPhone and Mac, here's exactly how I cleared it out and kept it clean. Plus, the one setting I turned off that stopped Safari from filling up again.

Quick Assessment: Which Method Should You Use?

Part 1. How to Clear Safari Data on iPhone & iPad

Method 1: The Native Apple Settings Way (Fastest for Most Users)

When to use this: You want a quick, one-tap cleanup and don't need to keep your browsing history. This is what I use before selling a phone or when I'm desperate for storage.

Why I trust this method: I've used it on 6 different iPhones over 4 years. It clears about 80-90% of Safari data in under 30 seconds. The only catch – it also wipes your history and open tabs.

Step 1Open Settings on your iPhone or iPad. Scroll down until you see Safari. Tap it.

Step 2Scroll to the bottom of the Safari settings page. You'll see Clear History and Website Data. Tap it.

Step 3A popup will appear asking for confirmation. Tap Clear History and Data. Within 5-10 seconds, Safari's cache, cookies, and history will be gone.

Method 1 (Alternative): Clear Individual Website Data

When to use this: You want to clear data from specific websites but keep your login for others (like your bank or email).

Step 1Go to Settings > Safari > Advanced > Website Data.

Step 2You'll see a list of every website that has stored data on your iPhone, sorted by size. In my case, YouTube had 1.2GB, Reddit had 800MB.

Step 3Tap Edit in the top-right corner. Tap the red minus icon next to any website, then tap Delete. Or tap Delete All at the bottom to clear everything.

Method 2: The Deep Clean Alternative – Using FoneLab iPhone Cleaner

When to use FoneLab iPhone Cleaner: The built-in methods didn't free up as much space as expected, or you want to clean junk files beyond Safari. I ran this after the Settings method and found an additional 4GB of Safari-related junk that the native method missed.

Step 1Download and install FoneLab iPhone Cleaner on your computer (Windows or Mac). Launch the program. Connect your iPhone via USB cable. Tap Trust on your phone when prompted.

Step 2On the main interface, choose Free up Space, the software will then scan your iPhone for junk files. Look for Safari Cache, Safari History, and Website Data in the scan results.

Step 3Check the boxes next to the Safari items (or select everything if you trust the default selection). Click Clean at the bottom right. Confirm the deletion.

What I recovered: After using Settings > Clear History, FoneLab iPhone Cleaner still found 4.2GB of Safari junk. Total freed after both methods: 12.3GB.

Part 2. How to Clear Safari Data on Mac (macOS)

Method 1: The Manual Safari Menu Method

When to use this: You're on your Mac and want a quick, no-extra-software cleanup. Takes 30 seconds.

Step 1Open Safari on your Mac. In the top menu bar, click Safari (next to the Apple logo) > Settings (or Preferences on older macOS). Click the Privacy tab.

Step 2Click Manage Website Data. You'll see a list of websites with stored data. Select the ones you want to remove, or click Remove All.

Step 3Click Done. For a more aggressive cleanup (including history), go to History > Clear History. Choose "all history" and click Clear History.

Method 2: The Advanced System Purge – Using FoneLab Mac Sweep

When to use FoneLab Mac Sweep: You want to clean Safari junk AND other Mac system clutter in one pass. I run this every 3 months.

Step 1Download and install FoneLab Mac Sweep from the official website. Launch the program. It will automatically scan your Mac's system junk.

Step 2On the main interface, click System Junk. The software will categorize everything: app caches, mail junk, iTunes leftovers, and Safari caches.

Step 3Check the box for Safari Cache and Safari History. You can also select other categories if you want a deeper clean. Click Clean.

What I recovered: On my 2021 MacBook Pro, Safari junk alone was 6.8GB. Total system junk cleared: 22GB.

Part 3. Managing Safari Reading Lists & Offline Downloads

Why this matters: Reading List offline items are often the hidden storage killers. I had 43 articles saved for "offline reading" that I never actually read. They were taking up 1.8GB.

How to check and clear Reading List on iPhone/iPad:

Step 1Open Safari. Tap the Bookmarks icon (it looks like an open book). Tap the Reading List tab (eyeglasses icon).

Step 2Swipe left on any article and tap Delete. To delete all: Tap Edit > Clear All.

How to check on Mac:

Step 1Open Safari. Click the Sidebar icon (top-left, looks like two squares). Click Reading List.

Step 2Control-click (or right-click) on any article. Choose Remove Item. To remove all: Click Edit in the menu bar > Clear All Items.

What I do now: I set a monthly reminder to clear my Reading List. I also turned off "Automatically Save Offline" in Safari settings on iPhone (Settings > Safari > Reading List > toggle OFF "Automatically Save Offline").

Part 4. The One Setting That Stops Safari from Refilling Your Storage

The problem I kept having: Every time I cleared Safari data, it would come back within a week. The culprit? iCloud Safari syncing.

When iCloud sync is ON, Safari stores a full copy of your browsing data on your device AND in the cloud. Even after you clear locally, iCloud pushes it back.

How to turn it off (on iPhone/iPad):

Step 1Go to Settings > tap [Your Name] at the top > iCloud.

Step 2Look for Safari in the list of apps. Toggle the switch OFF.

Step 3When prompted, choose Keep on My iPhone (if you want to keep existing data but stop future sync) or Delete from My iPhone (if you want a completely fresh start).

On Mac:

Step 1Go to System Settings (or System Preferences) > Apple ID > iCloud.

Step 2Find Safari in the list. Toggle it OFF.

Part 5. FAQ

Save this guide for when you get the "Storage Full" notification on any Apple device. If Safari is the culprit on your iPhone, FoneLab iPhone Cleaner found 4GB that Apple's built-in tools missed. On your Mac, FoneLab Mac Sweep cleared 6.8GB of Safari junk alone. Have a try now.