Where to find the cookie settings on your phone
Cookies live in your browser's settings, not in a separate app. On iPhone, open Safari, tap the icon that looks like three horizontal lines (on older models) or swipe up from the bottom, then go to Settings > Safari > Clear History and Website Data. On Android, open Chrome, tap the three dots in the top right, go to Settings > Privacy > Clear browsing data, and make sure "Cookies and site data" is checked.
The exact steps depend on which browser you use. If you use Firefox on either phone, tap the menu button, select Settings, scroll to Privacy, and tap "Clear private data". If you use Edge on Android, tap the three dots, go to Settings > Privacy, and select "Clear browsing data". Each browser stores this setting in a slightly different place, but they all follow the same basic path: Settings or Menu > Privacy or History > Clear Data.
Key Takeaways
- Cookies are small files websites store on your phone to remember your login, preferences, and browsing habits — clearing them removes that stored information.
- On iPhone Safari, go to Settings > Safari > Clear History and Website Data; on Android Chrome, tap the three dots > Settings > Privacy > Clear browsing data.
- You can clear cookies immediately or set your browser to clear them automatically every time you close it.
- Clearing cookies will log you out of most websites and remove saved preferences, but it does not delete your passwords unless you specifically choose that option.
What happens when you clear cookies
When you clear cookies, websites forget who you are. You will be logged out of email, social media, banking sites, and any other account you were signed into. The next time you visit those sites, you will need to log in again. Websites will also forget your saved preferences — things like your language choice, whether you had items in a shopping cart, or your preferred view settings.
Clearing cookies does not delete your passwords. Your phone's password manager (iCloud Keychain on iPhone, Google Password Manager on Android) keeps those separate. You will still be able to log back in quickly because your passwords are stored elsewhere. If you want to delete passwords too, you have to do that in a separate step in your password manager settings.
The difference between clearing cookies and clearing all browsing data
When you clear cookies alone, you remove only those small tracking files. When you clear "all browsing data" or "all history", you also delete your browsing history, cached images and files, and sometimes autofill information. Most phone browsers give you a checkbox to choose what gets deleted — you can uncheck "History" if you only want cookies gone.
If you are trying to remove tracking data without losing your login sessions, look for an option that says "Cookies and site data" or "Tracking data" and leave the history box unchecked. On Safari, the option is called "Clear History and Website Data", which clears both — if you want only cookies, you have to clear all data. On Chrome and Firefox, you can pick and choose what to delete.
Setting your browser to clear cookies automatically
Most phone browsers can clear cookies every time you close the app. On Safari, go to Settings > Safari and toggle on "Privacy-Preserving Ad Measurement" and "Prevent Cross-Site Tracking" — these limit tracking but do not automatically clear cookies. To actually clear cookies on exit, you have to do it manually each time or use a private browsing mode.
On Chrome for Android, go to Settings > Privacy > Clear browsing data, then toggle on "Clear browsing data" and select "On exit". On Firefox for Android, go to Settings > Privacy > Delete browsing data on quit and toggle it on. Once enabled, your browser will automatically clear cookies, history, and cached data the moment you close the app. You will still need to log back into sites the next time you open the browser.
Using private or incognito browsing to avoid cookies
Private browsing (called Incognito on Chrome, Private on Safari and Firefox) prevents your browser from storing cookies in the first place. When you open a private tab, websites can still set cookies during that session, but the browser deletes them the moment you close the tab. This is useful if you are shopping on a public device or do not want a website to remember your visit.
Private browsing does not hide your activity from your internet service provider or from the websites you visit — it only hides it from other people who use your phone. On iPhone, swipe up and tap the "+" button, then tap "Private" before opening a new tab. On Android Chrome, tap the three dots and select "New incognito tab". You can use private browsing for sensitive searches without worrying about cookies accumulating on your device.
Cookies set by apps versus cookies in your browser
Apps like Facebook, Instagram, and TikTok store their own tracking data separately from your browser cookies. Clearing browser cookies does not remove data stored by the app itself. If you want to clear tracking data from an app, you have to go into that app's settings. On iPhone, go to Settings > [App Name] > Privacy and look for options to clear cache or data. On Android, go to Settings > Apps > [App Name] > Storage > Clear Cache or Clear Data.
Clearing an app's cache removes temporary files but keeps your login information. Clearing an app's data removes everything, including your login, so you will have to sign in again. Most people should clear cache rather than data unless the app is malfunctioning. Browser cookies and app data are separate systems, so you may need to clear both if you want to remove all tracking information from your phone.
Why websites ask you to clear cookies when something is broken
Corrupted or outdated cookies can cause websites to load incorrectly, log you out unexpectedly, or show error messages. If a website is not working properly, clearing cookies for just that site is often faster than clearing everything. On Safari, go to Settings > Safari > Advanced > Website Data, find the site, and swipe left to delete it. On Chrome, go to Settings > Privacy > Site settings > Cookies, find the site, and tap the trash icon.
Clearing cookies for one site keeps you logged into everything else while fixing the broken site. This is useful when you are troubleshooting a specific problem without losing your sessions on other websites. If clearing cookies for that site does not fix the issue, try clearing your browser's cache as well, or contact the website's support team.
Frequently Asked Questions
Will clearing cookies delete my saved passwords?
No. Passwords are stored in your phone's password manager, not in cookies. Clearing cookies will log you out of websites, but your passwords remain saved. You will be able to log back in using your password manager. If you want to delete passwords, you must do that separately in your password manager settings.
Can I clear cookies for just one website instead of all of them?
Yes. On Safari, go to Settings > Safari > Advanced > Website Data and swipe left on the site you want to clear. On Chrome, go to Settings > Privacy > Site settings > Cookies and tap the trash icon next to the site. This removes cookies for that site only and keeps you logged into other websites.
What is the difference between clearing cookies and using private browsing?
Clearing cookies removes data that was already stored. Private browsing prevents cookies from being stored in the first place. If you use private browsing, cookies are deleted when you close the tab, so you never have to manually clear them. Regular browsing stores cookies until you clear them manually or set your browser to clear them on exit.
Do I need to clear cookies on my phone if I already cleared them on my computer?
Yes. Your phone and computer are separate devices with separate browsers and separate cookie storage. Clearing cookies on one does not affect the other. If you want to remove cookies from both devices, you need to clear them on each device individually.
Will clearing cookies speed up my phone?
Slightly, but not noticeably. Cookies are very small files, so they take up minimal storage space. Clearing them may free up a few megabytes at most. If your phone is slow, the issue is usually something else — too many apps running, low storage space, or an outdated operating system. Clearing cookies is worth doing for privacy reasons, but do not expect a major speed improvement.