THUMBNAILS extension is a hidden folder stored in the sdcard/DCIM directory on select Android devices. It contains one or more . thumbdata files that store properties about thumbnail images indexed by the Gallery app to load images quicker.

Where is the Thumbnails folder on Android?

Thumbnails folder is hidden from the normal user by default and, generally, the ‘. ‘ at the start of the folder name within Android indicates that it is hidden. It is possible to view the folder using a file manager, the phone may contain one by default or one can be downloaded from the Play Store.

Is it OK to delete thumbnails in Android?

Can you delete thumbnails? It is perfectly possible to delete thumbnails on Android. And by doing this you can temporarily free up storage space on your device. You can also avoid automatic generation of thumbnails so that they reoccupy storage.