Where iPhone stores cookies and why you might want to clear them
Cookies on your iPhone live inside the web browser you use — Safari, Chrome, Firefox, or another app. They are small files that websites store on your phone to remember things about you: your login information, items in a shopping cart, or your browsing preferences. When you delete cookies, you erase that stored information, which means websites will no longer remember you the next time you visit.
You might delete cookies to free up a small amount of storage space, to stop a website from remembering your activity, or to reset how a site behaves when you return to it. Clearing cookies does not make you anonymous online — your internet service provider and the websites themselves still see your visits — but it does remove one layer of tracking that happens through your browser.
The steps to delete cookies differ depending on which browser you use. Safari, which comes built into iOS, has its own method. Chrome, Firefox, and other third-party browsers have different paths to reach the same setting.
Key Takeaways
- Safari stores cookies in Settings > Safari > Clear History and Website Data, where you choose what time period to clear.
- Chrome and Firefox have their own cookie-clearing menus inside the app itself, not in your phone's Settings.
- You can choose to clear only cookies, or cookies plus browsing history and cached images at the same time.
- Clearing cookies will log you out of most websites, so you will need to sign back in the next time you visit.
- If you want cookies deleted automatically every time you close your browser, you can turn on that setting in Safari or most third-party browsers.
How to delete cookies in Safari
Open Settings on your iPhone and scroll down to find Safari. Tap it, then scroll down again until you see Clear History and Website Data. Tap that button.
A menu will appear asking what time period you want to clear. Your options are the last hour, today, today and yesterday, the last week, the last month, or all history. Choose the period that matches what you want to delete. When you tap the time period, Safari will when ready clear your browsing history, cookies, and cached website data from that period.
If you want to clear cookies only from certain websites rather than all at once, you can also go to Settings > Safari > Advanced > Website Data. This shows you a list of every website that has stored data on your phone. You can swipe left on any website name to delete just that one, or tap Edit and then select multiple sites before tapping Delete.
How to delete cookies in Chrome
Open the Chrome app and tap the three-line menu icon in the bottom right corner (on older iPhones it may be in the top right). Scroll down and tap Settings.
Tap Privacy, then tap Clear Browsing Data. A menu will appear with checkboxes for different types of data. Make sure the box next to Cookies and Site Data is checked. You can also check or uncheck the boxes for browsing history and cached images depending on what you want to clear.
At the top of the screen, you will see a time range selector that defaults to "All time". You can change this to the last hour, last 24 hours, last 7 days, last 4 weeks, or all time. Select your preferred range, then tap Clear Browsing Data at the bottom to confirm.
How to delete cookies in Firefox
Open Firefox and tap the menu icon (three horizontal lines) at the bottom right of the screen. Tap Settings.
Scroll down to Data Management and tap it. You will see options for clearing browsing data. Tap Clear Private Data. A checklist will appear with options including cookies, browsing history, and cached images. Make sure Cookies is checked, then tap Clear Private Data to delete them when ready.
How to set cookies to delete automatically when you close your browser
If you want your browser to delete cookies every time you close it, you can turn on that setting instead of clearing them manually. In Safari, go to Settings > Safari and toggle on Privacy Preserving Ad Measurement and Prevent Cross-Site Tracking. These settings limit how much data websites can store about you, though they do not automatically delete cookies on close.
For automatic deletion in Safari, you will need to clear history and website data manually each time, or use a third-party browser. Chrome and Firefox both have options to clear data on exit. In Chrome, go to Settings > Privacy > Clear Browsing Data, then toggle on Clear Browsing Data (the toggle, not the button). In Firefox, go to Settings > Data Management and toggle on Delete Browsing Data.
When you turn on automatic deletion, your browser will clear cookies and other data every time you fully close the app — not just when you switch to another app, but when you swipe it closed or it closes on its own.
What happens after you delete cookies
After you clear cookies, most websites will no longer recognize you when you visit them next. You will be logged out of email, social media, shopping sites, and any other service that used cookies to keep you signed in. The next time you visit those sites, you will need to enter your username and password again.
Some websites may also load more slowly the first time you visit after clearing cookies, because they no longer have cached information about your preferences. Shopping sites may stop showing you personalized recommendations. News sites may reset their article counters if they limit how many free articles you can read per month.
None of this data is lost permanently — websites will start storing new cookies as soon as you visit them again. Clearing cookies is not destructive; it straightforward resets the relationship between your browser and the websites you visit.
The difference between cookies and other tracking methods
Cookies are one way websites track you, but not the only way. Websites also use pixels (invisible images that report back to advertisers), fingerprinting (collecting information about your device to identify you), and login-based tracking (knowing who you are because you signed in). Deleting cookies stops cookie-based tracking but does not stop these other methods.
If you want broader privacy protection, consider using a VPN (virtual private network) to hide your internet service provider from seeing your browsing, or use a browser with stronger privacy defaults like Firefox or DuckDuckGo. Turning on Do Not Track in your browser settings sends a signal to websites asking them not to track you, though not all websites honor it.
Clearing cookies is a useful habit if you share your iPhone with other people or use public WiFi, but it is not a complete privacy solution on its own.
Frequently Asked Questions
Will deleting cookies log me out of everything?
Yes, deleting cookies will log you out of most websites because cookies store your login session. You will need to sign back in the next time you visit. If you want to keep one account logged in, do not clear cookies, or use a private browsing mode instead so cookies are deleted only when you close that tab.
Can I delete cookies from just one website?
Yes. In Safari, go to Settings > Safari > Advanced > Website Data, find the website you want, swipe left, and tap Delete. In Chrome and Firefox, you can search for a specific website in the Clear Browsing Data menu, though the process varies slightly between versions.
Do I need to delete cookies regularly?
No. Cookies take up very little storage space on modern iPhones. You only need to delete them if you want to stop a website from remembering you, if you share your phone with others, or if you are concerned about tracking. Most people do not need to clear cookies regularly.
What is the difference between clearing cookies and using private browsing?
Private browsing mode (Safari's Private Browsing or Chrome's Incognito) prevents your browser from storing cookies and history while you are in that mode. When you close the private tab, everything is deleted automatically. Clearing cookies manually deletes what has already been stored. Private browsing is useful for one-time visits; clearing cookies is useful for resetting your relationship with sites you visit regularly.
Does clearing cookies make me anonymous online?
No. Your internet service provider, the websites you visit, and your network administrator can still see what you are doing online. Clearing cookies only removes one tracking method. For stronger anonymity, you would need a VPN and a privacy-focused browser, though even those do not make you completely anonymous.