What clearing Facebook cache actually does

Cache is temporary data that Facebook stores on your device to load faster next time. When you clear it, you delete those stored images, videos, and login information — but you don't delete your actual account, messages, or photos. Facebook will straightforward read that data again the next time you open the app.

Most people clear cache to free up storage space on a phone or computer that's running slowly, or to fix a glitchy app that won't load properly. On a phone with limited storage, clearing cache can recover several hundred megabytes. On a computer, the benefit is usually smaller but still worth doing if the app is freezing.

Clearing cache will not log you out, change your settings, or affect anything you've posted. You'll just have to wait a moment longer the first time you open Facebook after clearing, because the app has to read those images and videos fresh.

Key Takeaways

  • Clearing cache removes temporary files Facebook stores on your device, not your account data or messages.
  • On Android phones, go to Settings > Apps > Facebook > Storage > Clear Cache; on iPhones, you must delete and reinstall the app.
  • On Windows computers, clearing cache happens inside the Facebook app settings or through your browser's cache tools.
  • After clearing cache, Facebook will reload slower the first time you open it, then return to normal speed.

Clearing cache on an Android phone

Open your phone's Settings app. Scroll down and tap Apps (sometimes called Applications or App Management). Find and tap Facebook.

Tap Storage or Storage and Cache. You'll see two buttons: Clear Cache and Clear Data. Tap only Clear Cache — do not tap Clear Data, which removes your login information and forces you to sign in again. After you tap Clear Cache, you'll see a confirmation that the cache was cleared. Close Settings and open Facebook normally.

Clearing cache on an iPhone

iPhone doesn't give you a button to clear just the Facebook cache. Instead, you must delete the Facebook app entirely and reinstall it. Open the App Store, search for Facebook, and tap Get to reinstall. Sign in with your username and password when prompted.

This method clears all temporary files and usually fixes freezing or loading problems. Your account remains untouched — you're just removing and putting back the app itself. The reinstall takes a few minutes depending on your internet speed.

Clearing cache on a Windows computer

If you use the Facebook website in a browser, clearing cache happens through your browser, not through Facebook itself. Open your browser and press Ctrl + Shift + Delete (this works in Chrome, Edge, and Firefox). A window will open asking what time range to clear — select All time. Make sure Cookies and other site data and Cached images and files are both checked, then click Clear data.

If you use the Facebook app on Windows (less common), right-click the app in your Start menu, select App settings, scroll down to Storage, and click Clear cache. You won't need to reinstall.

Clearing cache on a Mac

If you use Facebook in Safari, click Safari in the top menu, then Settings. Go to the Privacy tab and click Manage Website Data. Search for "facebook" in the list, click it, and click Remove. Close the window and refresh your Facebook page.

In Chrome on Mac, press Command + Shift + Delete. Select All time from the dropdown, check Cookies and other site data and Cached images and files, then click Clear data.

When to clear cache and when not to

Clear Facebook cache if your phone or computer is running out of storage, if the Facebook app is freezing or loading slowly, or if you're seeing broken images or old content that won't refresh. It's a safe first step before uninstalling and reinstalling the app.

You don't need to clear cache regularly on a schedule — once every few months is enough for most people. If you clear cache and the problem persists, the issue is usually something else, like an outdated app version or a problem with your internet connection. In that case, try updating the Facebook app from your app store or restarting your device.

Frequently Asked Questions

Will clearing cache log me out of Facebook?

No. Clearing cache removes temporary files only. Your login information stays saved, so you'll remain signed in. If you want to log out, you have to do that manually through Facebook settings.

How much storage space will I free up?

On a phone, clearing Facebook cache usually frees up 100 to 500 megabytes, depending on how long you've had the app installed and how much video you watch. On a computer, the amount is usually smaller, often 50 to 200 megabytes.

Can I clear cache without deleting the app?

Yes, on Android and Windows computers. On iPhone, you must delete and reinstall the app because iOS doesn't let you clear app cache separately. The reinstall takes just a few minutes.

What's the difference between clearing cache and clearing data?

Clearing cache removes temporary files only. Clearing data removes your login information, settings, and saved passwords, forcing you to sign in again. Always choose Clear Cache unless you're trying to completely reset the app.

Do I need to clear Facebook cache if I'm not having problems?

No. If Facebook is working normally and you have plenty of storage space, there's no reason to clear cache. It's only necessary when you're running low on space or experiencing app problems.