Websites not loading correctly, pages stuck on old versions, login loops that never end, or a browser that has gotten noticeably slower over the months — in many cases, clearing your browser cache is the fastest fix. It is also one of the first things IT technicians ask clients to try, because a stale cache causes a surprisingly wide range of problems that look unrelated on the surface.
This guide covers every major browser — Chrome, Firefox, Safari, Microsoft Edge — plus Chrome and Safari on iPhone and Android. You will also understand exactly what cache is, what gets deleted when you clear it (and what does not), and when to clear cache versus when to clear cookies.
Universal keyboard shortcut: works in Chrome, Firefox, and Edge
On Windows: Ctrl + Shift + Delete opens the "Clear Browsing Data" dialog in Chrome, Firefox, and Edge immediately. On Mac: Cmd + Shift + Delete works in Chrome and Edge; Cmd + Option + E clears cache in Safari specifically. This shortcut skips several menu levels and is the fastest route regardless of browser.
What Is Browser Cache and Why Does It Need Clearing?
Every time you visit a website, your browser downloads a set of files to display it: images, CSS stylesheets that control the layout, JavaScript files that handle interactivity, fonts, and other media. After the first visit, the browser saves copies of these files in a folder on your computer called the cache.
On your second visit to the same site, instead of downloading all those files again (which takes time and bandwidth), the browser loads them from its local cache. This is why websites load faster the second time you visit them — you are not waiting for a full download.
The problem arises when a website updates its files. The server has the new version, but your browser still serves the old one from cache. You see:
- An outdated page layout after the site was redesigned
- A bug that was already fixed, because you are loading the old JavaScript file
- A login that does not work, because the authentication script is outdated
- Images that do not display after they were moved on the server
- Slower browsing, because a multi-gigabyte cache on a slow drive is slower to read than a download
Cache vs. Cookies vs. History: What Is the Difference?
| Data Type | What It Stores | Effect of Clearing |
|---|---|---|
| Cache | Website files (images, CSS, JS, fonts) | Sites load slower on next visit but will show latest version |
| Cookies | Login sessions, preferences, tracking IDs | Logged out of all websites, preferences reset |
| Browsing History | List of URLs you have visited | History cleared; no effect on site behavior |
| Saved Passwords | Username/password pairs | NOT deleted when clearing cache — stored separately |
| Bookmarks | Saved page URLs | Never deleted by any cache-clearing action |
Clearing cache does not delete your passwords or bookmarks
This is the most common concern. Passwords saved in your browser and all bookmarks are stored in a completely separate location from the cache. No cache-clearing action can affect them. However, clearing cookies will log you out of all websites — you will need to log back in with your saved passwords. If you only want to fix a display problem, clear cache only and leave cookies unchecked.
How to Clear Cache in Google Chrome
Chrome is the most used browser worldwide, and its cache-clearing dialog has been consistent across versions.
Open Chrome's Clear Browsing Data Dialog
Press Ctrl + Shift + Delete (Windows) or Cmd + Shift + Delete (Mac). Alternatively: click the three-dot menu in the top-right corner of Chrome > Settings > Privacy and Security > Clear browsing data. This opens the same dialog either way.
Select the Correct Options and Time Range
In the Basic tab: check Cached images and files. If you also want to clear cookies (and do not mind logging out of all sites): check Cookies and other site data as well. For the time range: select All time from the dropdown at the top to clear everything. If you only want to clear recent cache (for a site that was just updated), choose "Last 24 hours" or "Last 7 days" — this leaves older cached data intact and speeds up subsequent page loads for other sites.
Click "Clear Data" and Reload the Page
Click the blue Clear data button. Chrome will process the deletion — on a large cache this can take 10–30 seconds. After it completes, navigate to the website that was having issues and reload it with Ctrl + F5 (Windows) or Cmd + Shift + R (Mac) to ensure a completely fresh load, bypassing any in-memory cache as well.
Chrome: Clear Cache for One Specific Website
If you only want to clear the cache for a single website without affecting all others: open the site in Chrome, then click the lock icon (or information icon) in the address bar > Cookies and site data > Manage on-device site data. Select the site's entries and click Remove. This clears cache and cookies only for that specific site — all other sites remain unaffected and you stay logged in everywhere else.
How to Clear Cache in Mozilla Firefox
Open Firefox's Clear Data Dialog
Press Ctrl + Shift + Delete (Windows) or Cmd + Shift + Delete (Mac). Or go to the hamburger menu (three lines, top-right) > Settings > Privacy & Security > Cookies and Site Data section > Clear Data. Firefox also has a separate "History" clearing dialog at Library (Ctrl+Shift+H) > Clear Recent History — this has more granular options.
Select Cache and Set the Time Range
In the Clear History dialog, check Cache (and optionally Cookies). Set the time range to Everything from the dropdown. If you want only cache (no cookies), uncheck all other boxes. Click Clear Now. Firefox may take a moment to process if the cache is large (Firefox caches are often 200–500 MB on regular use). After clearing, reload the page with Ctrl + Shift + R.
Firefox: Set Cache to Clear Automatically on Exit
To have Firefox automatically clear the cache every time you close it: go to Settings > Privacy & Security > History section. Set "Firefox will" to Use custom settings for history. Check Clear history when Firefox closes, then click Settings next to it and check Cache. This keeps the cache perpetually fresh without manual clearing.
How to Clear Cache in Safari (Mac)
Use the Develop Menu (Fastest Method)
First, enable the Develop menu if it is not visible: go to Safari menu > Settings (Cmd + comma) > Advanced tab > check "Show features for web developers". Now in the top menu bar, click Develop > Empty Caches (or press Cmd + Option + E). This clears only the cache immediately, without any dialog, and without clearing cookies or history. It is the fastest way to clear Safari cache while staying logged in to all sites.
Clear Cache and Cookies Together (Full Clear)
Go to Safari > Settings > Privacy tab > Manage Website Data. Here you see every site that has stored data. Click Remove All to clear all site data (cache and cookies for all sites). This will log you out of all websites. For selective clearing: use the search field to find a specific website, select it, and click Remove — this clears data for only that one site while keeping everything else intact.
How to Clear Cache in Microsoft Edge
Microsoft Edge is built on Chromium (the same engine as Chrome), so the process is nearly identical to Chrome.
Open the Clear Browsing Data Dialog
Press Ctrl + Shift + Delete (Windows) or Cmd + Shift + Delete (Mac). Or click the three-dot menu > Settings > Privacy, Search and Services > Clear browsing data > Choose what to clear.
Select Cache and Clear
Check Cached images and files. Set the time range to All time. Click Clear now. Edge also has a unique "Clear browsing data for InPrivate" option — this is separate and only applies to data from InPrivate (private) browsing sessions. After clearing, reload with Ctrl + Shift + R.
Edge: Auto-Clear Cache on Every Close
Edge has a cleaner implementation of automatic cache clearing than Chrome: go to Settings > Privacy, Search and Services > Clear browsing data on close. Toggle on Cached images and files. This clears the cache every time you close Edge without affecting passwords, bookmarks, or saved form data.
How to Clear Cache on iPhone (Safari and Chrome)
Clear Safari Cache on iPhone / iPad
Go to Settings (the grey gear icon on your home screen) > scroll down and tap Apps (iOS 18+) or Safari (older iOS) > tap Clear History and Website Data > tap Clear History and Data to confirm. This clears cache, history, and cookies for Safari. If you only want to clear cache without deleting history: go to Settings > Apps > Safari > Advanced > Website Data > Remove All Website Data. For one specific website: in that Website Data list, swipe left on the site's entry and tap Delete.
Clear Chrome Cache on iPhone
Open Chrome on your iPhone. Tap the three-dot menu in the bottom-right (or top-right on iPad) > Settings > Privacy > Clear Browsing Data. Check Cached Images and Files and select your time range. Tap Clear Browsing Data at the bottom to confirm. On iOS, Chrome cache can grow large if you browse heavily — clearing it monthly speeds up the app noticeably on older iPhones.
How to Clear Cache on Android
Clear Chrome Cache on Android
Open Chrome. Tap the three-dot menu in the top-right > Settings > Privacy and Security > Clear Browsing Data. On the Basic tab, check Cached images and files. Set time range to All time. Tap Clear data. Android also lets you clear app cache from the system settings: Settings > Apps > Chrome > Storage > Clear Cache — this clears browser data at the OS level, which can free up significantly more space than the in-browser method.
Clear Cache in Samsung Internet (Android)
Open Samsung Internet. Tap the three horizontal lines (bottom-right) > Settings > Personal Browsing Data > Delete Browsing Data. Check Cached images and files and tap Delete Data. Samsung Internet has its own cache separate from Chrome, so if you use both on an Android device, clear both for a thorough cleanup.
Quick Reference: Keyboard Shortcuts for Every Browser
| Browser | Windows Shortcut | Mac Shortcut |
|---|---|---|
| Chrome | Ctrl + Shift + Delete | Cmd + Shift + Delete |
| Firefox | Ctrl + Shift + Delete | Cmd + Shift + Delete |
| Edge | Ctrl + Shift + Delete | Cmd + Shift + Delete |
| Safari (cache only) | N/A (Windows version discontinued) | Cmd + Option + E |
| Hard refresh (single page) | Ctrl + Shift + R or Ctrl + F5 | Cmd + Shift + R |
When Should You Clear Cache vs. Do a Hard Refresh?
A hard refresh (Ctrl+Shift+R) bypasses the cache for a single page without deleting anything stored. Use it when one specific page is loading an old version — it is instant and requires no dialog. Use full cache clearing when multiple sites are behaving oddly, the browser is slower than usual, you are experiencing login problems across several sites, or you want to free up disk space. The hard refresh is non-destructive and leaves all other cached data intact, making it the first thing to try before a full clear.
Privacy note: cache stores a record of sites you have visited
The browser cache contains images and files from every site you have visited. Someone with access to your computer and the right tools can browse your cache folder and see which websites you visited, even if you cleared your browsing history. If privacy is a concern, clear your cache before lending your device. For ongoing privacy, use your browser's private/incognito mode — it never writes to the disk cache at all.
Clearing Cache Does Not Fix Everything: When to Call Support
Cache clearing is a fast, harmless first step — but it has limits. It will not fix:
- A slow internet connection — run a speed test at fast.com to rule this out first
- A website that is actually down — check downdetector.com to confirm it is not just you
- Browser extensions that are breaking sites — test in an Incognito/Private window (which disables extensions) to check
- Malware redirecting your browser — if you are seeing unexpected ads or being redirected, clearing cache will not help; a malware scan is needed
- A corrupted browser profile — if a browser crashes repeatedly or behaves erratically, creating a new browser profile (not just clearing cache) may be necessary
- Network-level DNS caching — if a site has changed its IP address, you may also need to flush DNS: run
ipconfig /flushdnsin an admin Command Prompt on Windows, orsudo dscacheutil -flushcachein Terminal on Mac
For persistent browser issues, malware removal, or performance problems that clearing cache does not resolve, IT Cares provides remote support for PC and Mac users across Canada. A remote session can diagnose and fix most browser problems in under 30 minutes — call (581) 398-1270.
Browser Problems Clearing Cache Won't Fix?
IT Cares provides remote PC and Mac support across Canada. We diagnose and fix browser issues, malware, slow computers, and more — usually in one session.
Frequently Asked Questions
What is browser cache and why does it need to be cleared?
Browser cache stores copies of website files (images, CSS, JavaScript) on your computer to speed up repeat visits. It needs clearing when websites update their files but your browser keeps serving outdated cached versions, causing display problems, login issues, or broken functionality. Clearing cache forces a fresh download of all current files.
Will clearing cache delete my saved passwords and bookmarks?
No. Passwords and bookmarks are stored completely separately from the cache and are never affected by cache-clearing. However, clearing cookies (which is separate from cache) will log you out of all websites. If you only check "Cached images and files" in the dialog and leave cookies unchecked, you stay logged in to everything.
How often should I clear my browser cache?
For most users, every 1–3 months is sufficient for maintenance. Clear it immediately whenever a website is not loading correctly, showing an outdated version, or causing login problems. A hard refresh (Ctrl+Shift+R) is a quicker option for fixing a single misbehaving page without clearing anything else.
What is the difference between cache and cookies?
Cache stores website files to speed up loading. Cookies store session information (login tokens, preferences, cart contents) that websites use to recognize you. Clearing cache fixes visual and loading problems. Clearing cookies fixes authentication problems but logs you out of all sites. They serve different purposes and can be cleared independently.
Why does my browser cache keep filling up so fast?
Browsers have no strict default limit on cache size and will grow to fill available disk space. Heavy use of media-rich sites (YouTube, news sites, streaming) fills the cache rapidly. Set a cache size limit in Firefox (Settings > Privacy & Security) or enable auto-clear on exit in Edge (Settings > Privacy > Clear browsing data on close). On Chrome, consider using an extension like Click&Clean to schedule automatic cache clearing.
Comments (3)
I had no idea the keyboard shortcut was the same in Chrome, Firefox, and Edge. Ctrl+Shift+Delete everywhere — that alone was worth reading the article. I also didn't know clearing cache and clearing cookies were different things. I was always afraid I'd lose my passwords. Now I know exactly what I'm deleting. Very clear explanation.
The tip about clearing cache for one specific website in Chrome (through the lock icon) is something I've never seen mentioned elsewhere. I was clearing my entire cache every time a single website misbehaved. This way is so much better — stays logged in everywhere and only refreshes the one broken site.
This guide solved my problem instantly. Safari on my Mac was showing an old version of a website I manage. Cmd+Option+E to empty caches, then hard refresh — boom, the new version appeared. I had been embarrassed about showing clients the outdated version and didn't know why it kept appearing. Should have cleared the cache weeks ago.
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