Folders
How to clean junk files on Android without deleting anything you need
Free up storage by clearing thumbnail caches, leftovers and other junk, with a cleaner that only ticks what's certainly safe to delete and shows you everything else first.
Cleaner
3 guides on this topic.
How to find and remove duplicate files safely
Duplicate photos, videos and downloads waste gigabytes. Find true copies by their contents, not their names, keep the oldest of each and delete the rest, on Android, Windows or Linux.
How to free RAM on Android 14 and newer, now that apps can't close other apps
Since Android 14, RAM cleaner apps can't close background apps any more. Here's why, when freeing memory actually helps, and how Folders' Extreme mode still does it, safely.