What clearing your cache actually does

Cache is temporary data your browser or apps store on your device to load websites and programs faster next time. When you clear it, you delete those stored files — which frees up storage space and can fix loading problems, but also means websites will load slightly slower the first time you visit them after clearing.

Your browser cache holds images, scripts, and other pieces of web pages. Your apps cache holds similar temporary files. Over time, cache can grow to several gigabytes, especially if you browse heavily or use video streaming apps. Clearing it is safe — nothing permanent gets deleted, and the data will rebuild as you use your browser and apps normally.

Key Takeaways

  • Clearing cache removes temporary files stored by your browser or apps, freeing up storage space without deleting your passwords or browsing history.
  • The steps differ depending on whether you use Chrome, Safari, Firefox, or Edge, and where you clear from matters — your browser cache is separate from your app cache.
  • You can set your browser to clear cache automatically when you close it, which prevents buildup without manual work.
  • Clearing cache fixes slow loading, reduces storage use, and can resolve website display problems, but websites will load slightly slower the first time after clearing.

How to clear cache in Chrome

Open Chrome and press Ctrl + Shift + Delete on Windows, or Command + Shift + Delete on Mac. A window titled "Clear browsing data" will open. At the top, make sure the time range is set to "All time" if you want to clear everything, or pick a specific range like "Last 7 days" or "Last 24 hours".

Check the box next to "Cached images and files" — this is your cache. You can also check "Cookies and other site data" if you want to clear login information, though that will sign you out of most websites. Leave "Browsing history" unchecked unless you want to delete your history too. Click the blue "Clear data" button at the bottom right.

How to clear cache in Safari

Open Safari and click "Safari" in the menu bar at the top left. Select "Clear History" from the dropdown. A window will appear asking how far back to clear — choose "all history" to clear everything, or pick a time range. Click "Clear History" to finish.

Safari clears both history and cache together in this menu, unlike Chrome. If you want to clear cache without deleting history, you need to go to Safari menu, then Preferences, then Privacy tab, and click "Manage Website Data" — but the simpler route for most people is just using Clear History.

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 opens. At the top, set the time range — "Everything" clears all cache, or pick a specific period. Make sure "Cache" is checked in the list below.

You can leave other options unchecked unless you want to delete cookies or history too. Click the blue "Clear Now" button. Firefox will clear the cache and close the window automatically.

How to clear cache in Edge

Open Microsoft Edge and press Ctrl + Shift + Delete on Windows. The "Clear browsing data" window opens. At the top, set the time range to "All time" or pick a specific range. Check the box next to "Cached images and files".

You can also check "Cookies and other site data" if you want to clear login information. Click "Clear now" at the bottom. Edge will clear the cache and the window will close.

How to set your browser to clear cache automatically

You can tell your browser to clear cache every time you close it, so you never have to do it manually. In Chrome, open Settings (click the three dots in the top right, then Settings). Go to Privacy and security, then Clear browsing data. Check the box that says "Clear cookies and other site data when you quit Chrome". From now on, cache clears automatically when you close the browser completely.

In Safari, go to Safari menu, then Preferences, then Privacy tab. Check "Remove all website data" at the bottom. In Firefox, go to Settings, then Privacy & Security, scroll to "Cookies and Site Data", and check "Delete cookies and site data when Firefox is closed". In Edge, open Settings, go to Privacy, search, and services, scroll to "Clear browsing data", and toggle on "Choose what to clear every time you close the browser".

When to clear cache and what problems it solves

Clear cache if a website looks broken, loads slowly, or shows outdated information. Sometimes your browser is displaying an old cached version instead of the current page. Clearing cache forces the browser to read the fresh version. This fixes most display glitches and loading problems.

Clear cache if you are running low on storage space — cache can easily use several gigabytes on a device you use heavily. Clear it if you share a device and want to remove traces of websites you visited. Clear it if you notice your browser is sluggish, though this is less common. You do not need to clear cache on any schedule — only when you have a reason to.

Frequently Asked Questions

Will clearing cache delete my passwords or saved information?

No. Cache is only temporary files like images and scripts. Your passwords, usernames, and saved payment information are stored separately. If you want to clear those too, you have to check a separate box — usually labeled "Cookies and other site data" or "Cookies and site data" — but clearing cache alone leaves them untouched.

Why does my browser seem slower after I clear the cache?

Websites load slightly slower the first time you visit them after clearing cache, because your browser has to read all the images and files again instead of using the stored copies. This slowdown is temporary and only happens on the first load of each site. After that, cache rebuilds and speeds return to normal.

Can I clear cache for just one website instead of everything?

In Chrome, Firefox, and Edge, you can clear data for a specific site by right-clicking on the page and selecting "Delete" or "Remove" (the exact wording varies). In Safari, you can go to Preferences, Privacy, Manage Website Data, find the site in the list, and click Remove. This clears only that site's cache without touching anything else.

How much storage space will clearing cache free up?

It depends on how much you browse and what apps you use. Browser cache typically ranges from 100 megabytes to a few gigabytes. App cache can be larger, especially for video streaming apps. You can see how much space cache is using before you clear it — in Chrome, the Clear browsing data window shows the size at the top.

Do I need to clear app cache separately from browser cache?

Yes. Browser cache and app cache are stored in different places. Clearing your browser cache does not touch app cache. To clear app cache on Windows, go to Settings, Apps, Apps & features, find the app, click it, then Storage, then Clear cache. On Mac, most apps do not have a built-in cache clear option — you would need to uninstall and reinstall the app, or use a third-party cleaning tool.