Cache on Android is temporary files that applications create to speed up their work. Over time, they accumulate, take up precious memory space, and can even slow down your smartphone. But incorrectly clearing the cache it can lead to app failures, data loss, or even a system reboot. How to find a balance between freeing up memory and device stability?

In this article we will look at all the current ways to clear the cache on Android - from manually clearing individual applications to system tools and third-party utilities. You will learn which files can be deleted without riskwhich ones are better to leave, how to automate the process, and what to do if, after cleaning, the applications start to work slower. We will pay special attention to the nuances for different versions of Android (from Android 10 to Android 15) and popular manufacturers: Samsung, Xiaomi, Huawei and others.

1. Why is accumulated cache memory dangerous?

Cache is not just garbage. It performs important functions:

  • 📱 Speeds up application launching (for example, Instagram or YouTube do not load the logo again every time).
  • 🖼️ Saves thumbnails of images and videos so that they open instantly.
  • 📊 Stores data for offline work (maps in Google Maps, articles in Chrome).

However, when the cache grows to gigabytes, problems arise:

  • ⚠️ System slowdown —Android starts to “slow down” when switching between tasks.
  • 📉 Insufficient memory —even on smartphones with 128+ GB, users are faced with the “Memory Full” notification.
  • 🔄 Application crashes —for example, VK or Telegram may not open media files.
  • 📱 Device overheating —excessive background processes load the processor.
📊 How often do you clear the cache on your smartphone?
Once a week
Once a month
Only when memory runs out
Never cleared

According to research AVG Technologies, the average Android user accumulates up to 5–7 GB of unnecessary cache in 3 months. At the same time, 60% of these files can be safely deleted without affecting the operation of applications. But how to understand which data is unnecessary?

⚠️ Attention: Clearing the cache Google Play Services, Android System WebView or system applications. (for example, com.android.phone) can lead to malfunctions of the phone. It is better not to touch these files unless absolutely necessary.

2. Manually clearing the cache for individual applications

The safest way is to clear the cache selectively. This will not delete your data (photos, messages, settings), but it will free it up. place.

Instructions for Android 10–15:

  1. Open Settings → Applications (on some devices - Applications and notifications).
  2. Tap on the desired application (for example, Facebook or TikTok).
  3. Select Storage (or Memory).
  4. Click Clear cache (not to be confused with Clear data!).

On smartphones Samsung the path may be different:

Settings → Device care → Memory → Applications → [Select an application] → Storage → Clear cache

Make sure that this is not a system application

View cache size (if less than 50 MB, it is not necessary to clear it)

Close the application before clearing

Check if there is important offline data (for example, maps)

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Which applications should I clean first?

Application Average cache size Can I clean it without risk?
Google Chrome 200–500 MB Yes (but you will have to log in to some sites again)
Instagram 300–1 GB Yes (photos and videos will remain)
YouTube 500 MB–2 GB Yes (but offline videos will be deleted)
Telegram 100 MB–500 MB Yes (but media files will take longer to load)
Google Maps 1–3 GB Caution (offline maps will be deleted)
💡

If after clearing the cache Instagram or TikTok the content takes a long time to load, just restart the application - the data will be loaded again.

3. cache through the Android settings

Starting from Android 9, the system has built-in tools for automatic cleaning. They are safer than manual methods, since they do not affect critical files.

Methods of automatic cleaning:

  • 🤖 Smart Storage - deletes unused ones. files (photos, videos) older than 30–90 days.
    Path: Settings → Storage → Smart Storage.
  • 🧹 Storage & Performance — analyzes unnecessary files (cache, duplicates, temporary data).
    Path: Settings → Device care → Clean (on Samsung).
  • 📉 Memory optimization — suggests removing rarely used applications.
    Path: Settings → Applications → Optimize.

On devices Xiaomi (MIUI) there is a separate tool - Security → Cleaning. It shows:

  • 🗑️ Garbage in the cache
  • 📁 Unneeded APK files
  • 🔍 Residual files after deleting applications
What to do if "Smart Storage" does not work?

If the function Smart Storage is inactive, check:

1. Connect to a Google account (required for synchronization).

2. Availability of free space (less than 10% of memory can block the function).

3. System updates (on some firmware Xiaomi i Huawei this option is disabled by default).

Automatic tools are usually delete:

  • ✅ Application cache (except system ones)
  • ✅ Temporary download files
  • ✅ Duplicate photos
  • ❌ Do not touch application data (game saves, chats, settings)
⚠️ Attention: On some devices (for example, Huawei with EMUI), the automatic cleaning function can delete files from the folder Downloadif they are older than 30 days! Before use, check the settings! data-i="154">4. Clearing the browser cache (Chrome, Firefox, Opera)

4. Clear browser cache (Chrome, Firefox, Opera)

Browsers are the main “drives” of the cache. They save:

  • 🍪 Cookies (authorization data)
  • 🖼️ Images and styles sites
  • 📝 Browsing history
  • 🔐 Passwords (if saving is enabled)

How to clear the cache in Google Chrome:

  1. Open the browser and tap ⋮ (three dots) → History.
  2. Select Clear data.
  3. Set the period (for example, "All time").
  4. Tick the boxes:
    • 🗃️ "Cookies and site data"
    • 🖼️ "Cached images and files"
  • Click Clear data.

    • For Firefox i Opera The process is similar, but the paths are different:

    • Firefox: ⋮ → Settings → Removing personal data.
    • Opera: ⚙️ → Clear browser data.
    💡

    Clearing the browser cache deletes saved passwords unless you uncheck the "Cookies" box. To avoid this, export your passwords in advance. in Settings → Passwords.

    What happens after cleaning:

    • ✅ Sites will take a little longer to load when first opened.
    • ✅ Saved logins on some resources will disappear.
    • ✅ Frees up from 100 MB to 1-2 GB of memory (depending on activity).

    5. Using third-party cleaning applications

    If the built-in Android tools cannot cope, you can use specialized utilities. However, there are risks here:

    • ⚠️ Some apps delete not only the cache, but also useful data.
    • ⚠️ May contain advertising or malicious code (especially little-known utilities).
    • ⚠️ Often require unnecessary permissions (access to SMS, contacts).

    Top 3 proven applications for clearing the cache:

    Application Features Cons
    CCleaner Deletes cache, residual files, analyzes memory Advertising in the free version, sometimes deletes too aggressively
    Files by Google Official from Google, clears duplicates and large files No deep cleaning of the system cache
    SD Maid Advanced cleaning (including system files) Complicated interface, requires root for some functions

    How to use Files by Google:

    1. Download the application from Google Play.
    2. Open it and go to the tab Cleaning.
    3. Select a category "Application cache."
    4. Click Clear [X] MB.
    5. Confirm the action.
    ⚠️ Attention: Applications like Clean Master or DU Speed Booster are often blacklisted for aggressive advertising and data collection. Their use is not recommended.

    6. Clearing the cache via Recovery Mode (for experienced users)

    If your smartphone is very slow and conventional methods do not help, you can clear the cache via Recovery Mode. This method deletes all temporary system filesincluding the update cache and Dalvik-cache (used to speed up applications).

    Instructions:

    1. Turn off the phone.
    2. Hold down the combination of buttons to enter Recovery:
      • 📱 Samsung: Power + Volume Up + Bixby.
      • 📱 Xiaomi: Power + Volume Up.
      • 📱 Google Pixel: Power + Volume Down, then select Recovery Mode.
  • In the recovery menu, select Wipe cache partition (control the volume buttons, select with the power button).
  • Confirm the action and wait for completion.
  • Reboot the device (Reboot system now).

    • What this method gives:

    • ✅ Removes the system cache, which is not cleared by standard methods.
    • ✅ Can solve problems with “eternal” updates or freezes.
    • ✅ Does not affect user data (photos, messages).
    What is Dalvik-cache and why is it being cleaned?

    Dalvik-cache —these are optimized versions of applications created by the Android virtual machine. When cleaned through Recovery they are recreated the next time you start apps, which can speed up the system. However, the first launch of applications after cleaning will take longer than usual.

    ⚠️ Attention: Do not confuse Wipe cache partition s Wipe data/factory reset! The second option will completely reset the phone to factory settings.

    7. How to clear the cache of Google Play Services and other system applications

    System applications (for example, Google Play Services, Android System WebView) also accumulate cache, but you need to clear them carefully. Incorrect actions can lead to:

    • ❌ Synchronization errors with Google account.
    • ❌ Problems with push notifications.
    • ❌ Freezes when updating applications.

    Safe way cleaning:

    1. Go to Settings → Applications.
    2. Tap on ⋮ (three dots) → Show system processes.
    3. Find Google Play Services (or another system application).
    4. Select Storage → Clear cache.
    5. Do not press Clear data!

    Which system applications can clean:

    Application Is it possible to clear the cache? Consequences
    Google Play Services Yes, but rarely Temporary synchronization errors
    Android System WebView Yes Some sites will take longer to load
    Download Manager Yes Download history will be deleted
    com.android.phone No Network settings may disappear

    If after cleaning Google Play Services errors appear (for example, "Google Play Services has stopped"), do:

    Settings → Applications → Google Play Services → Storage → Clear cache + Uninstall updates

    Frequently asked questions (FAQ). if you clear the cache

    ❓ Do you need to clear your cache regularly?

    No, it is enough to do this once every 1–3 months or when problems appear (brakes, lack of memory). Frequent cleaning can, on the contrary, slow down applications, since they will constantly recreate the cache.

    ❓ What happens if you clear the cache WhatsApp?

    Temporary files (thumbnails of photos, videos) will be deleted, but the chats, media and settings themselves will remain. The next time you open the application, it will reload the necessary data, which may take a little longer.

    ❓ Why do applications run slower after clearing the cache?

    This is normal: applications need time to re-create the cache. Usually, after 1-2 launches, the speed is restored. If the brakes remain, check the free space on the device (there should be at least 10%).

    ❓ Is it possible to clear the cache for all applications at once?

    Yes, but it is not advisable in Android, so you will have to use third-party utilities. (for example, SD Maid), which is risky. It is better to clean it selectively.

    ❓ Does clearing the cache remove viruses?

    No, cache and viruses are different things. To remove malware, use antivirus software (Malwarebytes, Bitdefender) or check your device. via: Settings → Security → Google Play Protect Android settings Google Play Protect (Settings → Security → Google Play Protect).