Cleaning RAM on Android: a complete guide to speeding up your smartphone

Random access memory (RAM) is the “brain” of your Android smartphone, responsible for the speed of applications and multitasking. When RAM gets clogged, the phone starts to slow down, applications crash, and the battery drains faster. But cleaning RAM is not always an obvious process: many users either do it incorrectly (exacerbating the problem) or use dubious “cleaners” that only harm the system.

In this article we will examine 7 proven methods cleaning RAM on Android - from standard tools to advanced methods for experienced ones users. You'll learn how to free up memory, which apps really help (and which don't), and why. The instructions are relevant for all versions of Android from 10 to 14, including devices without root accesswhich apps really help (and which don't) and why automatic cleaning through the task manager can harm performance. The instructions are valid for all versions of Android from 10 to 14, including devices Samsung, Xiaomi, Google Pixel, OnePlus and other brands.

What is RAM and why it needs to be cleaned

Random access memory (RAM) is a temporary storage of data that is actively used by the processor. When you open an app, it loads into RAM to quickly respond to your actions. The problem occurs when:

• 📱 Background processes take up too much memory (for example, instant messengers, social networks, games).
• 🔄 Memory leaks in poorly optimized applications (often found in games and heavy utilities).
• 🤖 System services Android (for example mediaserver or android.system) “hang” and do not free up RAM.
• 📉 Shortage memory on budget smartphones (2–4 GB RAM).

Unlike internal storage (where files are stored), RAM is cleared automatically upon reboot. But constant freezes mean that the system cannot cope with memory management. Xiaomi, Samsung and other manufacturers add their own optimizers, but they often work aggressively - killing even the necessary processes.

Before you start cleaning, check whether the problem is really in the RAM. Go to Settings → Device care → Memory (on Samsung) or Settings → Applications → Running (on “pure” Android). If less than 20% of the memory is free, it’s time to act.

Method 1: Manual cleaning through Android settings

The safest method is to use the system’s built-in tools. They do not require the installation of third-party applications and work on all devices.

1. Open “Recent applications” (square button or swipe up gesture with a delay). All running apps are displayed here. Close unnecessary ones by swiping up on the application card.
2. Use the task manager:
   • On Samsung: Settings → Device care → Memory → Clean.
   • On Xiaomi/Redmi: Settings → Applications → Manage applications → Clear.
   • On "clean" Android: Settings → Applications → Running → Stop.

Restart the device. This frees up RAM completely, but temporarily (after turning on, background processes will start again).

Save important data in open applications

Close games and instant messengers

Check the battery level (at least 20%)

Do not clear system processes (for example, com.android.systemui)

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⚠️ Attention: Do not kill processes like android.process.media or com.google.android.gms - this may cause the phone to malfunction. The Android system itself optimizes RAM, and forced cleaning sometimes only gets in the way.

Method 2: Optimization through Developer Options (for advanced)

If you are ready to delve into hidden settings, developer mode gives more control over RAM. It is activated like this:

1. Go to Settings → About phone → Build number.
2. Click on “Build number” 7 times until the notification “You have become a developer” appears.
3. Go back to Settings → System → For Developers.

Now find these options:

• 🔧 Do not save actions (Don't keep activities) - closes applications immediately after minimizing. Saves RAM, but can be annoying (when you return to the application, it reloads).
• 📊 Process limit (Limit background processes) - limits the number of background tasks. It is optimal to select “Maximum 2 processes.”
• 🚫 Disable animation (Window animation scale, Transition animation scale) - does not clear RAM, but speeds up the interface.

Option	Recommended value	Effect
Don't keep activities	On	Applications close when minimized, freeing up RAM
Limit background processes	Maximum 2 processes	Reduces memory load from background tasks
Force GPU rendering	On	Speeds up rendering, but may increase RAM consumption
Background process limit	Standard limit	Balance between performance and stability

⚠️ Attention: Not all parameters are equally useful. For example, Force 4x MSAA improves graphics, but heavily loads the processor and RAM. Use them carefully and test the changes.

Method 3: Applications for cleaning RAM - which ones really work

There are hundreds of RAM “cleaners”, but most of them are either useless or harmful to the system. We tested the top utilities and chose those that Google Play There are hundreds of RAM cleaners, but most of them are either useless or harmful to the system. We tested the top utilities and chose those that really free up memory without aggressive advertising and unnecessary functions.

Application	Pros	Cons	Rating
Greenify	Hibernation of background applications, no ads, works without root	Complex interface for beginners	4.7
SD Maid	Clears cache, removes garbage, optimizes databases	Some functions paid	4.5
CCleaner	Simple interface, clear cache and RAM	Aggressive marketing, can delete necessary files	4.2
Boost for Android	One tap to clean, CPU temperature monitoring	Lots of unnecessary notifications	4.4

🔹 Best choice: Greenify —it doesn’t just clear RAM, but “freezes” unnecessary applications, preventing them from starting automatically. To work without root, you will need to enable Special access in the Android settings.

⚠️ Attention: Avoid “cleaners” that promise to “speed up your phone by 300%” or require payment for basic functions. Many of them (for example Clean Master or DU Speed Booster) have been caught collecting user data.

How does Greenify work without root?

The application uses Android's hibernation mechanism, which temporarily “freezes” background processes. Without root, it can only manage user applications (not system ones), but this is enough to free up 10-30% of RAM. For complete control, you need root access.

Method 4: Clearing RAM via ADB (for advanced users)

If you are ready to work with Android Debug Bridge (ADB), you can manually manage processes and memory. This method requires a PC and basic knowledge of the command line.

📌 Step 1. Connect the phone to the PC and enable USB debugging in Settings → For developers.

📌 Step 2. Install ADB (download Platform Tools from the Google website) and open the command line in the folder with adb.exe.

📌 Step 3. Run the commands:

adb shell
su (if root)
dumpsys meminfo

This command will show the current memory state. To forcefully release RAM, use:

adb shell am broadcast -a android.intent.action.CLOSE_SYSTEM_DIALOGS
adb shell input keyevent 187 # Emulate the "Recent applications" button
adb shell input keyevent 27 # Emulate a swipe to close all applications

The command is useful for advanced users:

adb shell dumpsys meminfo --oom

It will show which processes take up the most memory and can be killed by the system if there is not enough RAM.

Method 5: Disabling unnecessary system applications

Many manufacturers (Samsung, Xiaomi, Huawei) install on phones pre-installed applications (bloatvar), which occupy RAM and cannot be removed using standard methods. They can be disabled:

1. Go to Settings → Applications → Show system ones.
2. Find unnecessary apps (for example, Samsung Free, Mi Video, Huawei AppGallery).
3. Click “Disable” (not “Delete”!).

🔹 What applications can be disabled:

• 🎮 Game launchers (Game Launcher, Game Space).
• 📺 Duplicate browsers (Samsung Internet, Mi Browser).
• 📊 Fitness trackers, if not you use (S Health, Mi Fit).
• 🎵 Music players from the manufacturer (if you use Spotify or YouTube Music).

⚠️ Attention: Do not disable system services with names like com.android.phone, android.telephony or google.play.services - this will lead to inoperability phone!

Method 6: Using Lite versions of applications

Many popular applications (Facebook, Messenger, Instagram) have light versions (Lite), which take up less RAM and internal memory. For example:

• 📘 Facebook Lite - weighs 2 MB instead of 100+ MB, consumes 50% less RAM.
• 💬 Messenger Lite —works without background processes.
• 📷 Instagram Lite —no stories and Reels, but the main functions are preserved.
• 🎵 Spotify Lite —allows you to listen to music with minimal resource consumption.

🔹 How to switch to Lite versions:

1. Remove the main one application.
2. Download the Lite version from Google Play.
3. Log in to your account (the data will be saved if you used a cloud backup).

📌 Bonus: Some Lite applications (for example Twitter Lite) work like PWAs (progressive web applications) and take up even less memory.

Method 7: Reset to factory settings (last resort)

If all methods did not help, and the phone is still slow, it remains full resetThis is a radical method that deletes all data, but returns it. the device to a “clean” state.

📌 How to reset:

1. Create a backup copy of important data (photos, contacts, messages).
2. Go to Settings → System → Reset settings → Delete all data.
3. Confirm the action (you may be required to enter a password).
4. After reboot, set up the phone as new.

⚠️ Attention: Resetting does not always solve the problem with RAM if it is related to hardware limitations (for example, on a phone with 2 GB of memory, modern applications will slow down in any case).

What to do after the reset?

Install only the necessary ones applications.

Disable automatic updating of applications in Google Play.

Use Lite versions of social networks.

Clear the cache regularly through the settings.

FAQ: Frequently asked questions about clearing RAM on Android

❓ Why does the phone slow down again after clearing the RAM?

Android dynamically manages the memory: as soon as you free up the RAM, the system fills it up again with background processes. This is normal! The brakes occur if there is not enough memory for active tasksSolution: reduce the number of applications open at the same time or install Lite versions.

❓ Is it possible to clear RAM every day?

It is not recommended. Frequent forced cleaning forces the system to constantly reboot processes, which increases battery consumption and wears out the flash memory. It is optimal to clear the RAM only when the phone is in use. slows down.

❓ Do RAM “boosters” from Google Play help?

Most “boosters” are dummies. They show beautiful cleaning animations, but in fact they simply close background applications, which Android does itself when there is a lack of memory. Exception. - Greenify, which really optimizes background processes.

❓ Why is there little free RAM on my phone even after cleaning?

Modern versions of Android reserve part of the memory for system processes. If you have 4 GB of RAM, then only 1–1.5 GB may appear “free” - this is normal. The main thing is that. so that the phone works quickly. If there are lags, the problem is not in the amount of free RAM, but in application optimization.

❓ How to check which application consumes the most RAM?

Use the built-in monitor:

1. On Samsung: Settings → Device care → Memory → More details.
2. On “pure” Android: Settings → Applications → Running → Memory.
3. Or install Simple System Monitor from Google Play.

Pay attention to processes marked FOREGROUND (active) and CACHED (cached).