Key Takeaways
What a Cache Actually Is
A cache (pronounced "cash") is a temporary storage area on your device where your browser or app saves copies of files it has already downloaded — images, scripts, stylesheets, and other page components. The next time you visit the same site, your browser loads those elements from your local cache instead of re-downloading them from the internet, which makes the page appear faster.
This is genuinely useful. Most websites change their core assets infrequently, so reusing local copies saves time and data. The problem arises when a site does update its content but your device keeps serving the old cached version — leading to broken layouts, outdated information, or features that refuse to work properly.
App caches work on the same principle. Social media apps, streaming services, and navigation tools all store temporary data locally to reduce load times. For a broader look at how apps store and access data differently depending on where they run, see our guide on native apps vs. web apps.
When in Doubt, Try a Hard Refresh First
Before clearing your entire cache, try a hard refresh: press Ctrl+Shift+R on Windows/Linux or Cmd+Shift+R on a Mac. This forces the browser to reload the page while ignoring cached files — often enough to fix a stubborn display glitch without touching your stored data.
When Clearing Your Cache Actually Helps
Clearing the cache is not a cure-all, but it genuinely resolves specific, common problems:
- A page looks broken or outdated — You see old content, misaligned elements, or a site that looked different before a redesign. Your browser is loading a stale cached version.
- You're stuck in a login loop — The site keeps redirecting you to a login page even after signing in. Old session cookies stored alongside the cache are often the cause.
- A recently updated page won't reflect changes — Developers and content editors encounter this constantly: a change was made, but the cached file obscures it.
- An app or web tool behaves unexpectedly — Buttons stop responding, forms won't submit, or scripts error out. Corrupted cached files can cause this.
If your device is running slowly in general, clearing the cache alone is unlikely to make a dramatic difference. Other factors — background processes, software age, and storage capacity — tend to have more impact. Our article on why phones slow down over time covers those causes in detail.
Clearing Cache Will Log You Out
When you clear your browser cache and cookies, you will be signed out of most websites automatically. Before you proceed, make sure you know your login credentials — or have a password manager ready. If you use two-factor authentication, ensure your second device or app is accessible too.
What You Need Before You Start
What you will need
Web Browser (Chrome, Firefox, Safari, Edge)
The application whose cache you'll be clearing via its built-in settings menu.
Password Manager or Written Login Credentials
Needed to sign back in to websites after cookies are cleared alongside the cache.
Smartphone Settings App
Required if you're clearing the cache of a mobile app rather than a desktop browser.
Once you have your credentials ready and know which browser or app you're targeting, follow the steps below.
Step-by-Step: How to Clear Your Cache
Open Your Browser's Settings
In most browsers, click the menu icon — usually three dots or three horizontal lines — in the top-right corner. Select Settings or Options from the dropdown.
Navigate to Privacy or History Settings
Look for a section labelled Privacy and Security, History, or Clear Browsing Data. The exact label varies by browser, but it is typically found within the main settings page.
Select What to Clear
You'll see a list of data types. For most common problems, check Cached images and files and Cookies and other site data. Leave saved passwords unchecked unless you specifically want to remove them.
Set the time range to All time if you're troubleshooting a persistent issue, or Last 7 days for a lighter reset.
Confirm and Clear
Click Clear data, Clear now, or the equivalent button in your browser. The process takes a few seconds. Once complete, the dialog will close or display a confirmation.
Clear a Mobile App Cache (If Needed)
On Android, go to Settings > Apps, select the app, then tap Storage > Clear Cache. On iPhone and iPad, most apps don't expose a direct cache-clear button — instead, you can offload the app via Settings > General > iPhone Storage, which removes temporary data while keeping your documents and settings.
Cache Clearing and Privacy: What It Doesn't Do
It's worth being clear about what clearing your cache doesn't accomplish. It removes locally stored files from your device, but it does not erase your browsing history from your internet provider, employer network, or the websites you've visited. Those records exist independently of your local cache.
Clearing cookies alongside your cache will remove tracking cookies from your device, which can offer a modest privacy benefit — but advertisers and data brokers use many other tracking methods that survive a cache clear. For a more thorough approach to reducing browser-based tracking, take a look at browser privacy settings worth turning on.
Relatedly, many people assume that using incognito or private browsing mode is equivalent to clearing their cache. It isn't — private mode simply avoids saving new data to the cache and history, rather than removing existing data. Our piece on common incognito mode misconceptions explains what private browsing actually does and doesn't protect.
Don't Confuse Cache with Saved Passwords
Many browsers let you clear cache, cookies, and saved passwords in the same settings panel, but these are separate data types. Clearing only the cache and cookies will not delete your saved passwords unless you explicitly select that option. Read each checkbox carefully before confirming.