Project File Manager

A Unity Tool made for managing your project files, either to delete unused ones or find out if there is a big file lost in your project.

Unused Finder

Scan selected folder for assets that are not being used, move all selected assets after scan to a folder named Unused or to the selected folder.

 ● Source Folder scan selected Folder.
 ● Target subfolder move all selected unused assets to a target folder.
 By default, it moves everything to a folder named Unused.
 ● Extensions all file extensions that the tool will try to look for.

You can either move the assets as a backup or delete them right away. There are some limitations to which files it will select. For example, it will first select a prefab and its materials if they are not being used by any other asset or referenced in a scene. After deleting the unused prefab and materials, the next scan will show all the textures that were being used by the prefab and its materials.

Obs: It might take some time during the first scan.

Size Explorer

It basically scans the Assets folder for all file sizes and displays them in a list where you can sort by size to identify any files that are taking up too much space in the project.