Owners of smartphones based on the Android operating system are often faced with a situation where the device begins to work slower, and notifications about lack of space appear at the most inopportune moment. Many users confuse the concepts, believing that the phrase “clear traffic” means deleting browsing history or resetting network settings, however, in the context of system optimization, we are most often talking about freeing up internal storage, which is overflowing with temporary files, browser caches and messenger junk.
The accumulation of digital garbage occurs unnoticed by the owner, but significantly affects performance. gadget. The operating system creates temporary files to quickly load frequently visited pages and run applications, but over time this mechanism fails, and old data begins to conflict with new data. Clearing the cache and deleting unnecessary ones data is the first step to returning the smartphone to factory performance without the need to do a full reset.
In this article we will look in detail at safe methods for freeing up space that will not damage the system or delete your personal photos or contacts. You will learn to distinguish between file types, understand what can be deleted without fear and what is better left alone, and learn about the hidden functions of the system that not everyone knows about.
Analyzing memory fullness and searching for hidden space eaters
Before taking decisive action to delete files, it is necessary to conduct a thorough diagnosis and understand what exactly is taking up precious gigabytes. Standard Android tools allow you to get basic information, but for in-depth analysis it is better to use built-in storage management tools that show the distribution of space by category. It often turns out that the lion's share is occupied not by installed applications, but by folders with media files from instant messengers or caches of streaming services.
Modern versions of Android, such as Android 12, 13 and 14, have built-in analyzers that visually display memory usage. However, you should be careful: the system may not show the size of the folder Android/obb or Android/data in the general list, although gigabytes of data from games and navigators can be stored there. Manual check via the file manager sometimes gives a more accurate picture than the standard settings.
⚠️ Attention: Do not delete files from system folders whose purpose you do not know. Removing critical libraries can lead to unstable applications or even cyclic reboots of the device.
Particular attention should be paid to the “Downloads” folder, where APK installation files that have already been used and forgotten documents often accumulate. It's also worth checking the gallery for duplicates and screenshots, which are automatically saved every time you press a button combination.
Clearing the cache and application data through system settings
The safest and most effective way to free up space is to work with the cache of individual applications. Cache is temporary data that speeds up the launch of apps, but its volume can grow to unimaginable sizes, especially in browsers and social networks. To clear it, you need to go to the menu Settings → Applications → Manage applications and select the desired app.
Inside the menu of each application you will find two important buttons: “Clear cache” and “Clear data”. The first deletes only temporary files, without affecting your logins, passwords and progress in games. The second button returns the application to the state immediately after installation, deleting all user settings and authorizations. Use data clearing only if the application does not work correctly or if you are ready to configure it again.
Clear the cache of such “heavy” applications as TikTok, Instagram and YouTube regularly - they can accumulate up to several gigabytes of garbage per month of active use.
For browsers such as Chrome or Firefox, clearing the cache is especially important, since they save copies of all visited pages for quick reloading. If you haven't cleaned out your browser in a while, freeing up space can be quite significant. In addition, in the browser settings you can set the history to be automatically cleared when closing a tab or app.
☑️ Procedure for clearing an application
Removing garbage in messengers: Telegram, WhatsApp and Viber
Messengers are the main culprits of memory overflow on most smartphones. They automatically save every photo, video and voice message received to the device’s memory, creating huge archives. In Telegram, for example, all media files are saved to a cache by default, which can occupy tens of gigabytes if automatic cleaning is not configured.
In the Telegram settings there is a useful “Memory Usage” function, where you can set the period for automatic cache deletion (for example, 3 days or 1 week). This will not delete the files from the chat cloud - you can open them again at any time and they will be downloaded again, but they will no longer take up space on your phone all the time. There are similar functions in WhatsApp, where you can disable autosaving to the gallery so that media files are not duplicated in the system Photos folder.
| Messenger | Where to look for cleaning | Deletion security | Recommended interval |
|---|---|---|---|
| Telegram | Settings → Data and memory | Secure (cloud files) | 1 week |
| Settings → Storage | Safe (cache only) | 1 month | |
| Viber | More → Settings → Memory | Caution (may delete media) | 2 weeks |
| Discord | Settings → Applications | Secure (cache only) | As needed |
It is important to understand the difference between deleting correspondence and clearing the media file cache. If you delete a chat, you will lose your message history, but if you clear the cache through system settings or built-in messenger tools, the text will remain in place, and the space occupied by pictures and videos will be freed up.
Working with the Downloads folder and file system
Folder Download (Downloads) is a “black hole” where all files downloaded from the Internet flow: from application installers to viewed presentations and saved pictures. Many users do not look there for years, not suspecting that there may be files there that have long lost their relevance. Regular revision of this folder can free up from 500 MB to several GB of free space.
For convenient work with files, it is recommended to use the built-in Files explorer from Google or a similar file manager that can sort documents by type and date. Pay attention to files with the extension .apk —these are application installers. If the application is already installed and running, storing the installation file again does not make sense.
What to do with the Android folder?
The Android folder contains application data. The internal data and obb subfolders can weigh a lot. You can only delete content manually if you understand what a specific folder is responsible for (usually by the package name com.example.app). The best way to clear this space is to uninstall the application itself.
It is also worth checking folders created by third-party photo or video editing apps. They often save source codes and intermediate versions of projects that you no longer need. Sorting by size in the file manager will help you quickly find the heaviest forgotten files.
Using the "Free up space" function and smart tools
In modern shells Android (MIUI, OneUI, ColorOS and pure Android) have built-in optimization utilities. They scan the system for duplicates, large files, and unused applications. For example, the “Free up space” feature in Google Files analyzes your habits and suggests deleting old screenshots, memes or videos that you have already sent to friends.
These tools work quite safely, since they mark only those files that the system considers junk. However, before mass deletion using such utilities, always run your eyes through the list of candidates for deletion. Sometimes important documents or rare photographs end up there, which the system mistakenly classified as unnecessary.
⚠️ Attention: The interface and names of functions may vary depending on the phone model and Android version. If you do not find the described function, use the search in the settings for the word “Memory” or “Storage.”
In addition, many manufacturers add their own “cleaners”, which can be more aggressive. They often suggest uninstalling rarely used apps. This is a useful feature, but it is worth remembering that deleting system components (even if they are marked as unused) can disrupt the operation of the smartphone.
Built-in cleaning tools from Google or the smartphone manufacturer are usually safer and more effective than third-party applications from the Play Market, which are often full of advertising.
Clearing the DNS cache and resetting network settings
Sometimes by the phrase “clear traffic” users understand the need to reset network settings if the Internet is unstable or pages load with errors. Android doesn't have a single "Clear all Internet traffic" button, but you can reset your network settings, which will clear your DNS cache, saved Wi-Fi passwords, and Bluetooth settings.
To perform this operation, go to Settings → System → Reset settings → Reset Wi-Fi, mobile data and Bluetooth settings. This action won't delete your personal files or apps, but it will force your phone to reconnect to known networks. This is useful if you encounter connection problems after changing your router or provider.
You can also clear the DNS cache manually through the developer menu or special commands, but for the average user a standard network settings reset is sufficient. This helps eliminate routing errors that may occur over time.
Command to reset DNS via ADB
If you have access to a computer and USB debugging, you can use the adb shell ndc resolver cleardefaultserver and adb shell ndc resolver flushall command, but this requires technical skills.
FAQ: Frequently asked questions about clearing Android
Will clearing the cache delete my saved passwords and logins?
No, clearing the cache (Cache) does not affect application data, such as logins, passwords and game progress. However, if you select the “Clear Data” option, then all settings and authorization in that particular application will be reset.
Is it safe to use cleaner apps from the Play Market?
Most popular cleaners are safe, but they often contain a lot of advertising and can work in running in the background, draining your battery. Built-in Android tools (Google Files or system cleaner) are usually enough to maintain order without installing additional software.
Where do photos go after clearing the Telegram or WhatsApp cache?
In Telegram, photos disappear only from the device, remaining in the chat cloud - they can be reopened at any time. In WhatsApp, the situation depends on the settings: if autosave to the gallery was enabled, the photos will remain in the gallery even if you clear the application cache.
How often should you clean your phone's memory?
It is enough to carry out preventative cleaning once every 1-2 months. If you actively use messengers and watch a lot of videos, you should check more often, for example, once every two weeks, to avoid a sudden lack of space.