Many users are faced with a situation where simply deleting correspondence in the messenger does not free up space in the smartphone’s memory or leaves confidential information available for recovery. The reason lies in the data storage architecture that WhatsAppuses. Simply clicking the “Delete” button only hides the information from the application interface, but physically the files often remain on the media until the next global overwrite or forced erasure.
To completely remove traces of communication, intervention in system folders and backup settings is necessary. Standard messenger tools are not designed to permanently erase data, since their priority is to preserve the user's history. To ensure that deleted messages are cleaned, you will need to perform a number of specific actions affecting the file system Android.
In this article we will examine in detail the mechanisms for storing backups and local databases. You will learn how to find hidden files .crypt, how to disable automatic saving to the cloud and how to use the system’s built-in tools to search for “garbage” that remains after deleting chats. The process requires care, but the result - a clean device and complete privacy - is worth it.
Data storage mechanism and local copies
Understanding where exactly your conversations are saved is the key to completely deleting them. The messenger creates local backups daily, usually at 02:00 am. These files are stored in the device's internal memory and can take up significant space, especially if you actively share media files. Even if you deleted the correspondence in the application itself, yesterday's or the day before yesterday's copy still contains this data.
Database files have an extension .crypt14, .crypt15 or another, depending on the version of encryption used by your application. They are located in a protected directory, access to which is limited in new versions Android (11 and higher). To manage these files, you may need a file manager with access rights to system folders or a connection to a PC.
⚠️ Attention: Before deleting any files from the folder
Databasesmake sure that you do not need to restore old correspondence. The process of deleting these files is irreversible without an external copy.
Local copies are created regardless of the cloud backup settings in Google Drive. This means that even if synchronization with the cloud is disabled, an archive of message history continues to accumulate on your phone. Cleaning this archive is the first and most important step to freeing up space.
Use the built-in file manager of Samsung or Files by Google to safely navigate to the protected system folders of Android 11+.
Search and delete backup files
To get to hidden archives, you need to follow a specific path in file system. Depending on the operating system version, the path may differ. On modern devices, the directory structure has been changed for security purposes, moving application data to a universal folder. Android.
Use the following algorithm to search for files:
- 📂 Open the file manager and go to
Internal memory. - 📂 Search folder
Android, thenmedia, thencom.whatsapp. - 📂 Inside, find the directory
WhatsAppand go to the folderDatabases. - 📂 If you have an old version of Android, the path may be simpler:
WhatsApp→Databasesin the root of memory.
Inside the folder Databases you will see a file named msgstore.db.cryptXX (this is the current database) and files with dates in the name, for example msgstore-2023-10-25.1.db.cryptXX. It is the files with dates that contain the history of past days. Deleting the current file msgstore will lead to the loss of all current correspondence the next time you launch the application, so be careful.
For deep cleaning, you can delete all files with dates, leaving only the most recent one if you want to keep only the current state, or delete everything if the goal is total erasure. After deleting files, it is recommended to reboot the device so that the system correctly updates the free space index.
☑️ Complete cleaning of backups
Cleaning Google Drive cloud backups
Deleting files from the phone does not guarantee the disappearance of data from the cloud. WhatsApp by default it is set to weekly backup to Google Drive. These copies are stored separately from the main storage of photos and documents and do not take up the quota of your Google account, but they are available for restoration at any time.
To delete a cloud backup, you need to go to the settings of the Google Drive service itself, and not to the messenger settings. Inside the application WhatsApp you can only disable the creation of new copies, but not delete existing ones. This is a common mistake by users who look for the delete button in the wrong place.
Follow these steps to clear the cloud:
- ☁️ Open the application Google Drive on your smartphone.
- ☁️ Click on menu icon (three bars) in the upper left corner.
- ☁️ Select the item
Backups. - ☁️ Find the file in the list WhatsApp [your number], click on the three dots next to it and select “Delete backup.”
⚠️ Attention: The Google Drive interface may change depending on application updates. If you do not find the “Backups” item, check the “Storage” section or account settings.
After completing this procedure, the old correspondence history will not be available for recovery even if you reinstall the application. This is a critical step for those who are selling a phone or passing it on to another user.
Managing media files and cache
Text messages take up negligible space; the main load on memory is created by media files: photos, videos, voice messages and stickers. When you delete a chat, media files often remain in the phone's gallery because they are saved as separate image or video files.
To clear this data, it is best to use the built-in storage management tool in itself WhatsApp. It allows you to visually assess which chats take up the most space and delete their content selectively. This is a safer method than manual deletion through a file manager, since the application itself correctly updates its indexes.
Go to Settings → Storage and data → Storage management. Here you will see a list of chats sorted by the amount of space they occupy. You can go to each chat and select files to delete, including those that were deleted from the conversation, but remained in the phone memory.
| Data type | Default location | Difficulty of deleting | Impact on memory |
|---|---|---|---|
| Text messages | Database (crypt) | High | Low |
| Photos | Gallery / WhatsApp Images | Low | Medium |
| Video | Gallery / WhatsApp Video | Low | Very high |
| Voice messages | WhatsApp Audio | Medium | Average |
| Documents | WhatsApp Documents | Medium | High |
Do not forget to also clear the application cache. Cache is temporary files that speed up the app, but over time they can grow to gigabytes. Clearing the cache does not delete your conversations, but it frees up space.
WhatsApp's built-in storage manager is the safest tool for deleting media, as it synchronizes the deletion with the application database.
Resetting settings and deleting IDs
If your goal is not just to free up space, but to completely anonymize the device or prepare it for sale, simply deleting files may not be enough. Residual configuration files or logs could theoretically contain metadata about your activity.
The most drastic but effective method is to remove the application itself and completely clear the data before deleting. In settings Android find the section Applications, select WhatsApp and click Storage. Here you need to press the button Clear data (not to be confused with clearing the cache), and then Delete application.
This sequence of actions ensures that all local settings, encryption keys and temporary files are destroyed. After that, if you install the app again, it will appear as new, without the ability to restore old history from that device.
⚠️ Attention: The Clear Data feature in Android Settings deletes all profile information and settings within the app. Make sure you remember your phone number for re-registration.
For advanced users, it is possible to use ADB (Android Debug Bridge) to forcefully delete application directories via a computer. This requires enabling USB debugging and entering commands in the terminal, which gives deeper access to the file system than the standard interface.
Command to completely delete WhatsApp data via ADB
pm clear com.whatsapp - this command instantly erases all application data without having to go into the settings menu.
Prevention of accumulation deleted data
In order not to encounter the problem of accumulating “deleted” files that actually take up space in the future, it is worth changing the messenger settings immediately after installation. Prevention is always more effective than manual cleaning.
Disable automatic saving of media to the gallery. This will prevent duplication of files: they will be available inside the messenger, but will not clog up the phone’s main gallery and create unnecessary copies in cloud photo synchronization services.
Adjust the backup frequency. If you don't need a year's history, set copying once a month or disable it altogether, relying on manually saving important contacts. It is also useful to regularly check the folder Databases and delete old files manually.
Use the Disappearing Messages feature for confidential chats. Although this does not immediately delete files from the database, it prevents them from being stored in readable form for a long time and makes later cleaning easier, as old messages are automatically marked for deletion by the system.
Turn on Disappearing Messages in your chat settings for 24 hours for conversations containing sensitive information - this will automatically delete their contents from the database after 24 hours.
Frequently asked questions (FAQ)
Is it possible to restore messages after clearing the Databases folder?
No, if you deleted files .crypt from the folder Databases and deleted the backup copy from Google Drive, messages cannot be restored. Encryption keys are stored only on the device and in these files.
Why was memory space not freed up after deleting the chat?
Most likely, media files (photos and videos) from this chat were saved to the general gallery of the phone. You need to find them in WhatsApp Images or WhatsApp Video folders and delete them manually.
Does deleting an app permanently delete all messages?
Deleting an app erases local data. However, if you have an active backup in Google Drive, if you re-install and enter the number, messages may be restored from the cloud.
Is it safe to use third-party apps to clean WhatsApp?
Using unofficial cleaner utilities is risky. They can damage your database or gain access to your personal correspondence. It is better to use the built-in tools of Android and the messenger itself.
How to delete messages from your interlocutor and yourself at the same time?
Use the “Delete from everyone” function immediately after sending. However, this does not delete files from backups made before the deletion, so you need to follow the instructions above for a complete cleanup.