What clearing cache actually does
Cache is temporary storage your browser or app keeps on your device to load things faster next time. When you clear cache, you delete those stored copies — images, code, login information, and other pieces of websites and apps you have visited. The next time you visit those sites or open those apps, they read fresh copies instead of using the old ones.
Clearing cache does not delete your passwords, bookmarks, or browsing history unless you specifically choose those options too. It only removes the temporary files that speed things up. Think of it like emptying a junk drawer — you are throwing out scraps that were useful once but are taking up space.
Key Takeaways
- Cache is temporary storage that makes websites and apps load faster by keeping copies of images and code on your device.
- Clearing cache removes those temporary files but keeps your passwords, bookmarks, and browsing history intact unless you delete those separately.
- You might clear cache when a website looks broken, an app runs slowly, or you want to free up storage space on your device.
- The steps to clear cache differ between browsers and devices, but the option is usually in Settings or Preferences under Privacy or Storage.
When you should clear cache
A website that looks broken or loads incorrectly sometimes has old cached files conflicting with new ones. Clearing cache forces your browser to read the current version, which often fixes display problems, missing images, or buttons that do not work. If a page looked fine yesterday and broken today, cache is a common culprit.
Apps that run slowly or crash sometimes have corrupted cached data. Clearing the app cache can restore normal speed without deleting your account information or saved progress. On phones and tablets, cache also takes up storage space — clearing it regularly can free up gigabytes if you use many apps.
You might also clear cache before logging into a sensitive account on a shared device, or if you notice a website is showing you outdated information. Some people clear cache regularly as routine maintenance, though most devices work fine without doing it often.
How to clear cache in Chrome
Open Chrome and press Ctrl + Shift + Delete on Windows or Command + Shift + Delete on Mac. This opens the Clear Browsing Data window directly. At the top, choose the time range — "All time" clears everything, or you can pick "Last hour", "Last 24 hours", or "Last 7 days" to clear only recent cache.
Make sure the checkbox next to "Cached images and files" is checked. You can leave other options unchecked unless you want to delete cookies, history, or passwords too. Click the blue "Clear data" button at the bottom right. Chrome will clear the cache in a few seconds and show a confirmation message.
How to clear cache in Firefox
Open Firefox and press Ctrl + Shift + Delete on Windows or Command + Shift + Delete on Mac. The Clear Recent History window appears. In the "Time range to clear" dropdown, select "Everything" or a specific time period. Make sure "Cache" is checked in the list below.
Click the "Clear Now" button. Firefox will remove the cached files when ready. If you prefer to use the menu instead, click the hamburger icon (three horizontal lines) in the top right, select Settings, then Privacy & Security, scroll to "Cookies and Site Data", and click "Clear Data".
How to clear cache on iPhone and iPad
Open Settings and scroll down to find Safari (or the app you want to clear). Tap Safari, then scroll down and tap "Clear History and Website Data". A popup asks which time period — choose "all time" to clear everything or pick a specific range. Tap "Clear History and Data" to confirm.
For other apps on iPhone, go to Settings, tap General, then iPhone Storage. Find the app in the list and tap it. You will see "Offload App" (which removes the app but keeps your data) and "Delete App" (which removes everything). Some apps have their own cache-clearing option inside the app itself — check the app's Settings menu first.
How to clear cache on Android
Open Settings and go to Apps (or process Manager, depending on your phone). Find the app you want to clear cache for and tap it. Tap "Storage" or "Storage and cache", then tap "Clear Cache". This removes temporary files without deleting the app or your account data.
To clear Chrome cache on Android, open Chrome, tap the three-dot menu in the top right, select Settings, tap Privacy and Security, then "Clear browsing data". Choose the time range and make sure "Cached images and files" is checked. Tap "Clear data" to finish.
What happens after you clear cache
Websites and apps will load slightly slower the first time you visit them after clearing cache, because your device has to read all the files again instead of using stored copies. This slowdown is usually just a few seconds. After that first visit, cache builds up again and things speed up.
If clearing cache fixed a problem, the site or app should work normally now. If it did not, the issue is something else — try restarting your device, updating the app, or checking your internet connection. Clearing cache is safe and does not harm your device or accounts.
Frequently Asked Questions
Will clearing cache delete my passwords?
No. Cache and passwords are stored separately. Clearing cache only removes temporary files. If you want to delete passwords too, you have to check that box separately in the clear data window — most browsers ask you to confirm before deleting passwords.
How often should I clear cache?
Most people do not need to clear cache regularly. Clear it when a website looks broken, an app runs slowly, or you are running low on storage space. Some people clear cache monthly or weekly as routine maintenance, but it is not necessary for normal device use.
Does clearing cache speed up my device?
It can free up storage space, especially on phones and tablets where cache adds up over time. However, clearing cache does not make your device run faster in general — it might even slow things down temporarily because sites have to re-read files. Clear cache to fix problems, not for speed.
Can I clear cache for just one website?
Most browsers do not have a straightforward option to clear cache for a single site. You can clear all cache for a time period, or you can open the site in a private or incognito window, which does not save cache at all. Some browsers let you clear cookies for one site, which is similar but not identical to clearing cache.
What is the difference between cache and cookies?
Cache stores images, code, and other files to make sites load faster. Cookies store login information, preferences, and tracking data. Both are temporary storage, but they serve different purposes. Clearing one does not clear the other unless you check both boxes in the clear data window.