Quickly Manage The Size of Files with WhatSize

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WhatSize is a one of the best utility available for Mac OS X which allows the user to quickly measure the size in bytes of a given folder and all subfolders and files within it.

This tool is useful for you when you are tight on hard disk space and you want to check those files that are taking up the most room and decide what to do with them. While the app is measuring a folder the user can browse the files within that folder and immediately see the size in bytes. Hidden files, cache files, directories will all show up with their corresponding size.

Once the measuring of a folder has ended the user can also view the information by filtering for particular file sizes or types.

WhatSize is a FileSystem utility that lets you view and clean up files, folders based on size. The application is optimized to quickly measure the size in bytes of a given folder or entire FileSystem. Once a measurement has taken place the user can view, filter, sort, find, remove files and folders that are taking too much space.


  • DeLocalizer : Remove those unwanted locales for languages you never knew existed.
  • Nib’o Suction : Clean up all unnecessary, forgotten nib files. Most likely these files were left over from the development process. Considering there are hundreds of these, they add up.
  • Lipo Suction : Trim up binary files by removing the unused architecture bytes.
  • File Duplicates : Quickly and easily find duplicate files and more.

The user can also move unwanted files and folder in the corresponding Trash bin similar to the Finders Delete button.


Vishal Gaikar

Article by Vishal

Meet Vishal Gaikar, the tech wizard hailing from Pune, India, who's on a mission to decode the digital universe one blog post at a time. When he's not tinkering with gadgets or diving deep into the digital realm, you can find him concocting the perfect cup of chai or plotting his next adventure. Follow his tech escapades on Twitter and buckle up for a wild ride through the world of innovation and geekery!

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