TreeSize is Folder & Disk Analysis Tool.

- Do you want to know what kinds of data you have in your Mac and storages ?
- Do you want to know how much data of them are occupying your disk ?
- Do you want to know detailed usage of disk space ?
- Do you want to check and clean unnecessary big data files and make more space more easily ?

If you want one of them you'd better have TreeSize !!

TreeSize gives you the easiest way to see what kind, how much, where the data is in your Mac.


It's very easy and intuitive to use : just drag folder and disk or open it !!
It shows kinds of data in rainbow color so that you can see how much they are at one glance !!
It shows classical tree structure so that you can easily navigate to where you want to go.
It shows the biggest 100 items and lets you pick them up and clean.
It shows all items in order of size, name or date.
You can check the content of file by Quick look panel.
You can see any file or folder in Finder by one click.
You can open any file with proper application by one click.
Added 'Open with TreeSize' in Service Menu.

What's New

Version 1.6

- Refresh Button added.
- Minor bugs fixed.

Ratings and Reviews

Another Update


OK, had nothing else going on….started the app…my screen eventually went to “sleep” while it was running….
Eventually logged back in….system was hung again….had to kill the app in Activity Monitor
So…..if this app would work it would be great….but I have not run it in any situtation so far when it did not hang up (Mac mini….4GM memory)
So I think I’d have to pass on it…memory hog…cpu hog…hangs all the time somtimes requiring a hard boot.

Good app, fair price


Very similar to Tree Size for PC. This app scans your hard drive or a selected folder and reports the size of the contents. Great for finding out which folders are taking up the most space, or tracking storage consumption that you might not otherwise be aware of. The best feature is the analysis at the end of scanning and the ability to instantly see the top 100 largest files. The developer did an excellent job!

Great Value


This application is fast. The user interface is straight forward and powerful. The graphics are very good for the price. i like that I can move files to the Trash from the top 100 file display. I removed 130GB of files in 5 minutes.

Only complaint. Where are the tooltips? Each icon should tell me what it does when I hover over it.

All in all I like the app and would buy again.


1.7 MB
English, Korean
Age Rating
Rated 4+
2013 © woojooin


  • Family Sharing

    With Family Sharing set up, up to six family members can use this app.

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