What cache is and why you should clear it

Cache is temporary data your computer stores to load websites, programs, and files faster the next time you use them. Your browser saves images, scripts, and page layouts. Your operating system caches recently used files. Applications cache login information and settings. Over time, this pile of temporary files takes up disk space, can slow your computer down, and may contain outdated versions of websites you visit.

Clearing cache is a straightforward maintenance task that takes five to ten minutes depending on which caches you target. You do not need special tools or technical knowledge—just the settings menus built into Windows, macOS, or your web browser. Most people clear cache once a month or when they notice their computer running slowly.

Key Takeaways

  • Browser cache stores website images and data; clearing it forces your browser to read fresh versions of sites you visit, which can fix display problems and free up disk space.
  • Windows and macOS both have built-in tools to clear temporary system files without using third-party software.
  • The steps differ slightly between browsers (Chrome, Firefox, Safari, Edge) but all are found in Settings or Preferences under Privacy or History.
  • Clearing cache will not delete your passwords, bookmarks, or saved payment information unless you specifically choose those options.
  • After clearing cache, websites may load slightly slower on your first visit because your browser must read fresh data.

Clear browser cache in Chrome

Open Chrome and click the three-line menu icon in the top right corner. Select Settings, then click Privacy and security in the left sidebar. Choose Clear browsing data. A window will appear with checkboxes for different data types.

Make sure Cookies and other site data and Cached images and files are checked. At the top, select the time range—All time clears everything, while Last hour, Last 24 hours, or Last 7 days clear only recent cache. Click Clear data. The process takes a few seconds. Your passwords and bookmarks remain untouched unless you check those boxes.

Clear browser cache in Firefox

Open Firefox and click the three-line menu in the top right. Select Settings, then choose Privacy & Security from the left menu. Scroll down to the Cookies and Site Data section and click Clear Data. A dialog box opens with two checkboxes: Cookies and Site Data and Cached Web Content.

Check both boxes and click Clear. Firefox clears the cache when ready. If you want to clear cache automatically every time you close Firefox, scroll up in the same Privacy & Security section and find History. Change the dropdown next to "Firefox will" to Use custom settings for history, then check the box for Clear history when Firefox closes.

Clear browser cache in Safari

Open Safari and click Safari in the menu bar at the top of your screen. Select Settings (or Preferences on older macOS versions). Click the Privacy tab. Click Manage Website Data to see all cached data, or straightforward click Remove All to clear everything at once.

If you want more control over what gets cleared, go back to the menu bar, click History, and select Clear History. A dropdown menu lets you choose the time range: the last hour, today, today and yesterday, or all history. Select your preference and click Clear History.

Clear browser cache in Microsoft Edge

Open Edge and click the three-dot menu in the top right corner. Select Settings, then click Privacy, search, and services in the left sidebar. Under Clear browsing data, click Choose what to clear. A window appears with checkboxes for different data types.

Check Cookies and other site data and Cached images and files. At the top, select your time range—All time is the most thorough. Click Clear now. You can also set Edge to clear cache automatically by toggling Clear browsing data to On and choosing whether to clear it when you close the browser or on a schedule.

Clear temporary files on Windows

Windows stores temporary files in a folder that you can empty without affecting your programs or documents. Press Windows key + R to open the Run dialog. Type %temp% and press Enter. A folder window opens showing temporary files your system has accumulated.

Select all files in this folder by pressing Ctrl + A. Press Delete. Windows may warn that some files are in use—click Skip for those files and continue. Close the folder when done. You can also use Disk Cleanup: search for Disk Cleanup in the Start menu, select your main drive (usually C:), and check the boxes for Temporary files, Temporary internet files, and Recycle Bin. Click Clean up system files.

Clear cache on macOS

macOS does not have a single "clear cache" button like Windows, but you can empty the cache folder manually. Open Finder and press Command + Shift + G to open "Go to Folder." Type ~/Library/Caches and press Enter. A folder opens showing cache files from your applications and system.

You can safely delete folders inside this directory, though it is safer to delete only cache from applications you recognize. Select a folder, press Command + Delete, and confirm. Restart your computer afterward. Alternatively, use the built-in Storage tool: click the Apple menu, select About This Mac, click Storage, then Manage. Look for Caches or Temporary files and click the delete button next to them.

What to expect after clearing cache

After you clear cache, websites may load slightly slower the first time you visit them because your browser must read fresh images, scripts, and data instead of using stored copies. This slowdown is temporary—usually one to three seconds per site. Subsequent visits load normally as your browser rebuilds the cache.

You will not lose passwords, bookmarks, or saved payment information unless you specifically checked those boxes during the clearing process. If a website looks broken or displays incorrectly after clearing cache, try refreshing the page or closing and reopening your browser. If the problem persists, the website itself may have an issue unrelated to your cache.

Frequently Asked Questions

Will clearing cache delete my passwords and saved login information?

No, unless you specifically check the box for "Passwords" or "Autofill data" during the clearing process. Browser cache and password storage are separate. Most people clear cache while leaving passwords intact so they do not have to log back into every website.

How often should I clear my cache?

Once a month is typical for most users. If your computer feels slow or websites display incorrectly, clear cache sooner. Some people clear cache weekly; others only when they notice problems. There is no harm in clearing it frequently.

Can I set my browser to clear cache automatically?

Yes. Chrome, Firefox, Edge, and Safari all have settings to clear cache automatically when you close the browser or on a schedule. Look for "Clear browsing data on exit" or similar options in your browser's Privacy or History settings.

What is the difference between cache and cookies?

Cache stores website images, scripts, and layout files to speed up loading. Cookies store small pieces of information like your login status and preferences. Both are temporary data, but cookies are smaller and more specific to your account activity on a site.

Is it safe to delete files in the Temp folder on Windows?

Yes, it is safe to delete most files in the Temp folder. Windows may warn that some files are in use—skip those and delete the rest. Restart your computer if you encounter errors. Do not delete files from other system folders unless you know exactly what they do.