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 2.0

- toolbar icon toggle in dark mode bug fixes.

Ratings and Reviews

1.0 out of 5
1 Rating

1 Rating

ditto13041 ,

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.

Jere_ ,

Not Like TreeSize Free

TreeSize Free is a great app for PCs. I was looking for a similar app for Mac. While this app looks similar, it doesn’t perform as well as TreeSize Free for PC. This app scans the directories including all child directories, so you have to wait for it to finish the scan as opposed to it just showing the the folder/file sizes at the directory being viewed. It would make this app better/faster if it just showed currently viewed directories’ folder/file sizes. I think the app is still useful though and will continue to use it.

jsoenke ,

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!


1.7 MB

OS X 10.8 or later, 64-bit processor


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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