An excellent starting point to clean up Telegram and free up storage space on your mobile phone is Correctly delete all chats that are not needed.
To do this, you simply have to select all the chats you want to delete, then swipe to the trash can icon displayed at the bottom, then select Empty chats. This will erase all data, images, audios and more from the device, freeing up storage space on the phone.
Clear Telegram cache
The last option to clean up Telegram and free up space on mobile devices is probably one of the easiest. This will clear the app cache and, in this case, chats, data or media files will not be deleted, only the copy stored on the mobile device will be deleted.
This option can also be found in Settings > Storage data > Storage usagethere you will find a section called Clear Telegram cache. There, the information that this section occupies in the mobile’s memory will simply be displayed.
Only need select everything you want to delete and then delete it from the mobile phone, which it will free up unnecessary storage space on your device.