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WizTree finds the files and folders using the most disk space on your hard drive Print E-mail

WizTree 3.00 now supports multiple languages, but we need your help!
Please click here to find out how to add a translation.
Currently available translations are below...


Click to Download WizTree

ver 3.17 [3.03 MB]  
Portable Zip

"Find the files and folders using the most space on your hard drive - QUICKLY!"
(WizTree is similar to applications like WinDirStat, TreeSize and Folder Size but is MUCH faster)

Works on 32 and 64 bit versions of Windows XP, Vista, Windows 7, 8 and 10

Translations are available below...

Pay what you want
Alternate Email

WizTree is FREE! However, if you find WizTree useful and would like to help to support further development, you can make a donation. If you're using WizTree in your business please help us out - we're a business too! 


After you make the payment we'll email you a unique "Supporter Code" along with instructions on how to use it to remove the "Donate" button from WizTree. This will be sent to your PayPal email address and the "Alternate Email" address if you entered one. Thank you!


If you've already made a WizTree payment and can't find your "supporter code" please click on the "Lost Registration Codes" link on the left to have it emailed to you.

  • Finds the files and folders using the most space on your hard drive
  • VERY Fast! WizTree reads the master file table (MFT) directly from NTFS formatted hard drives (similar to the way Everything Search Engine works)
  • Visual Treemap allows you to spot large files and large collections of smaller files at a glance
  • Finds the largest files on your hard drive. Every single file on your hard drive can be sorted in order of size.
  • File Name Search - quickly locate files by name or wildcard match
  • Sort the contents of your entire hard drive by folder size and optionally delete files and folders
  • Scan ALL hard drive file system types (NTFS, FAT, FAT32, network, etc) and/or individual folders

WizTree Treemap
WizTree Tree View
WizTree Top 1000 largest files
 WizTree Tree View with Visual Treemap
 WizTree Tree View
 WizTree Top 1000 largest files
What is WizTree?
WizTree is the world's fastest disk space analyzer. It scans your hard drive and shows you which files and folders are using the most disk space. It does this in the FASTEST way possible - you simply won't find any other application of this type that's quicker! Use the information WizTree provides to quickly locate and remove "space hogs" from your hard drive.

WARNING: Take care not to remove any files that are required for the correct operation of your PC!

What makes WizTree so fast?
When scanning NTFS formatted hard drives (most modern hard drives use this format), WizTree reads the hard drive's Master File Table (MFT) directly from the disk. The MFT is a special hidden file used by the NTFS file system to keep track of all files and folders on a hard drive. Scanning for files this way completely bypasses the operating system (Windows) and provides a huge performance boost.
Translation Files
 3.16 Chinese (simplified) (zh_CHS)
 3.16 Chinese (traditional) (zh_CHT)
 3.16 Danish (da)  Tobias Dideriksen
 3.16 French (fr) TMTisFree
 3.13 German (de)  de-heidjer
 3.00 Greek (el)
 Romanos Nianios
 3.16 Italian (it)
 3.16 Japanese (ja)  donkichirou
 3.16 Korean (ko)
 3.16 Norwegian (no)
 John-Alex Berglund
 3.16 Polish (pl)
 3.16 Russian (ru) Dmitry Yerokhin
 3.16 Serbian (sr)  ozzii.translate
 3.16 Spanish (es)
 Master System PC
 3.16 Ukrainian (uk)
Download and unzip the translation file to the [WizTree]\locale folder (normally C:\Program Files\WizTree)

The folder structure for translation files is
where XX is the language code

Restart WizTree, then select Options->Language and select the language. If WizTree does not detect the new language check that you're using the correct folder structure.
What's new?
WizTree 3.17 (7 December 2017)
  • Percent of parent calculation for grouped files ("x files in folder") was incorrect - fixed
  • new Korean translation by 4Li
  • Spanish translation updated
  • Swedish translation updated
  • Japanese translation updated
WizTree 3.16 (24 November 2017)
  • Copy file and size info feature added.
    Press Ctrl+Alt+C or right click on a file/folder and select "Copy file and size info to clipboard". File size and name information will be copied to the clipboard in a human friendly format, suitable for pasting into emails, support forum posts, or text documents. The files will be indented to match the current tree structure, and only currently visible files within the selection will be included.

    For example, if you expand the "C:\Users" folder within the tree by clicking on the "+" next to it, and then right click on it and select "Copy file and size info to clipboard", you will get something like this copied to the clipboard:

            64.82 GB    C:\Users
            59.15 GB      C:\Users\Bob
             5.62 GB      C:\Users\Public
            19.99 MB      C:\Users\UpdatusUser
            15.75 MB      C:\Users\Mcx1
            11.07 MB      C:\Users\DefaultAppPool
             2.70 MB      C:\Users\Default
           174 Bytes      desktop.ini
                   0      C:\Users\Default.migrated
                   0      C:\Users\Default User
                   0      C:\Users\All Users

         If this function is used on the "File View" then file and size information for the currently selected files will be copied to the clipboard, in a format similar to the following:

             6.75 GB  C:\pagefile.sys
             3.81 GB  C:\System Volume Information\{579260ea-c771-11e7-9c10-b4749f719216}{3808876b-c176-4e48-b7ae-04046e6cc752}
             3.21 GB  C:\Users\Bob\VirtualBox VMs\XP\Snapshots\{086cc618-9a46-438b-acf1-d90f001990b7}.vdi
             2.93 GB  C:\hiberfil.sys
             2.23 GB  C:\$RECYCLE.BIN\S-1-5-21-4195858667-1952806270-3254110446-1001\$RYF1ZAO.vdi

  • File export feature added. Press Ctrl+Alt+E or right click on a file/folder and select "Export to CSV file..."
    The selected files and/or folders will be exported to a comma delimited file (.CSV format). The information exported will depend on which view is currently active (Tree View or File View). If no files or folders are selected then ALL files and folders will be exported.
    e.g. If the main "C:\" folder is selected, then the entire contents of C:\ will be exported
    If "C:\Windows" and "C:\Users" are both selected then the contents of both of these folders will be exported

    Format is as follows:
    File Name, Size, Allocated, Modified, Attributes, Files, Folders

    For folders, the file name will always end with a "\", e.g. "C:\Windows\"
    For folders, the Size and Allocated fields will be the total size of all files and folders contained within that folder.
    For files, the Size and Allocated fields will be for that individual file only.
    The "Allocated" value will be prefixed by a leading 0 if the file is a "hard link", indicating that it does not take up any additional space on the hard drive and should not be counted as part of the total space used.
    Modified date is in format "yyyy/mm/dd HH:mm:ss"
    Attributes is stored as a value and is a combination of the following values added together:
    1 = Read Only (R), 2 = Hidden (H), 4 = System (S), 32 = Archive (A), 2048 = Compressed (C)
    e.g. If a file is Read Only and Hidden it will have attribute value = 3 (1 + 2)
    The Files and Folders values only apply to folders and show the total number of files and folders within that folder.
  • new Dutch translation by Imihar Novyak
  • new Swedish translation by Magnus Beutner
  • new German translation by André Heinrich
WizTree 3.15 (19 October 2017)
(Only external translation files have changed in the installer/portable version)
  • German translation by de-heidjer
  • Updated Japanese translation
  • Updated French translation
WizTree 3.15 (18 October 2017)
  • WizTree now associates itself with .MFT files (double click on a .MFT file to open it with WizTree)
  • Windows Explorer integration now uses WizTree icon in context menu
  • "Max files" value was not being saved correctly
  • Number of decimal places used to display sizes can now be configured in the WizTree3.ini file
  • fixed memory leak (memory usage also reduced)
WizTree 3.14 (14 October 2017)
  • High CPU usage while idle bug fixed (was not properly fixed in 3.13)
  • Tree horizontal grid lines and alternate row coloring can be enabled in the WizTree3.ini file
WizTree 3.13 (13 October 2017)
  • Free space can now be displayed on the Tree view (Options -> Show free space on treeview)
  • Treemap image can be saved as a .png file with user specified size and in shades of gray
  • Fixed issue causing high CPU usage while idle after scanning
  • fontsize and rowheight can now be set in the WizTree3.ini file
WizTree 3.12 (3 October 2017)
(Only external translation files have changed in the installer/portable version)
  • New translations are now bundled with installer
    - Chinese (Traditional) translation by cf0132
    - Norwegian translation by John-Alex Berglund
  • Updated Italian language file used by installer
 WizTree 3.12 (27 September 2017)
  • Supporter names were not being displayed correctly if they contained Unicode characters (fixed)
  • New translations bundled with the installer:
    - Danish translation by Tobias Dideriksen
    - Italian translation by bovirus
WizTree 3.11 (19 September 2017)
  • Zoom/Unzoom treemap
    Press F10 (or + on numpad) to zoom treemap to currently selected folder
    Press F11 (or - on numpad) to unzoom treemap to parent of currently zoomed treemap folder
  • Portable version no longer enables "Windows Explorer context menu" by default.
    If you enable this option when using WizTree portable then please remember to disable it when you're done with the PC otherwise the WizTree context menu items will remain on the PC even if WizTree portable is no longer accessible.
  • Supporter code might have had to be entered twice on some PCs due to restart happening before config file update complete
  • Treemap might display blank or only appear after a long delay on some PCs (fixed)
  • Treemap generation sped up
  • Allocated Size added to File Type view
  • Option to show allocated size on tree view instead of file size
  • Option to control the auto scanning of drives after making a selection
  • Floppy drives (A: or B:) will not be selected by default if any other drive letters exist
  • New translations are now bundled with the installer:
    - French translation by TMTIsFree
    - Serbian translation by ozzii.translate
    - Japanese translation by donkichirou
    - Spanish translation by Master System PC
WizTree 3.10 (12 September 2017)
  • Visual Treemap (uses cushion treemaps, similar to how WinDirStat does it)
    The visualisation makes it easy to locate large files or folders containing thousands of small files
    Selecting files on the treemap will highlight the file on the tree view and vice versa
  • File Type view (shows file size breakdown by extension)
  • New keyboard shortcuts:
    F3 - Select Folder / drive     
    F4 - Reset tree expanstion (all expanded nodes will be closed and returned to default state)
    F6 (or '/' on NumPad) - Select parent
    F7 (or '*' on NumPad) - Reselect child node (use after 'Select Parent' to reposition on the child node)
    F8 - Show File Types
    F9 - Show Treemap
  • 32 bit version might display an exclamation mark message ('!') on some PCs when running on a 64 bit O/S
  • Windows high contrast mode supported
  • The donate button can now be hidden by making a donation (Pay what you want). You will be emailed a unique "supporter code" after you complete the payment. Click on "File->Enter Supporter Code" or press F12 to enter it and remove the donate button. Your support is appreciated!
  • Currently available 3.10 translations are now bundled with the installer
    - Chinese (Simplified) by th_sjy
    - Polish by Barnaba
    - Russian by Dmitry Yerokhin
    - Ukrainian by kopejkin
WizTree 3.00 (31 August 2017)
  • 64 bit version now available. The 64 bit version can work with extremely large MFT files.
  • "Allocated Size" now displayed for each file/directory. This is the amount of actual disk space used by the file including any additional named data streams attached to the file.
  • NTFS "Hard Links" now supported. A hard link is an identical copy of an existing file where the file contents use the same area on the disk for storage (to save space). If WizTree detects a hard link the allocated file size will be displayed in parentheses in gray text. Hard linked files sizes are only added once when calculating "Allocated Size" totals and sub totals. This will give a 100% accurate total of the actual disk space used by folders that contain many hard linked files (such as C:\Windows\System32 and C:\Windows\WinSxS)
    (Note that hard links can only be detected on NTFS drives when WizTree is running with admin rights)
  • A selected file count and total size appears in the status bar
  • Hover over any file to have the full name displayed in the status bar
  • MFT dump now appends volume information (bytes per cluster, sector, MFT record etc) to the end of the MFT file data. WizTree now reads this information from the MFT file if it's available instead of making any assumptions which if wrong would lead to incorrect MFT parsing.
  • Background file monitoring for deleted files now uses a different more robust method. If WizTree detects that a file or directory has been deleted it will put a red line through it and remove it from the totals.
  • File view filtering is now even faster than before
  • Fixed some UI glitches when selecting files via keyboard on the File view
  • WizTree can now handle drives containing highly fragmented MFT files
  • MFT processing has been optimised so WizTree is even faster than it was before!
  • Full translation support added. Click here to find out how to add a translation.
WizTree 2.01 (3 June 2016)
  • WizTree would constantly restart itself on some PCs due to administrator rights issues (fixed) 
WizTree 2.00 (2 June 2016)
  • Now supports all drive types (not just NTFS drives)
  • Individual folders can now be scanned ("Select Directory")
  • Windows Explorer integration
  • File search feature added
  • Can now be run without administrator access if required (fast NTFS scanning will not be available)

WizTree 1.07 (17 Sep 2013)
  • Fixed bug that could cause incorrect file sizes to be extracted from the MFT on some PCs.
WizTree 1.06 (16 Aug 2013)
  • Context menu would not appear when selecting directories exactly 3 characters in length in the root folder
WizTree 1.05 (8 Feb 2013)
  • fixed possible access violation when processing certain MFT files
  • memory usage decreased by 10%

WizTree 1.04 (4 Dec 2012)
  • Memory usage decreased by about 40%
  • Folder sizes now updated in real time as files are deleted
  • Can now cancel scan in progress
  • File deletion detection improved
  • Processing speed increased for very large MFT files
  • Improved error handling
WizTree 1.03 (1 Dec 2012)
  •  Fix possible hang while processing on some PCs
WizTree 1.02 (30 Nov 2012)
  •  Fix for possible access violation when using the new Windows explorer shell context menu

WizTree 1.01 (30 Nov 2012)
  • Right clicking tree and files now also shows Windows explorer context menu items. (This can be disabled via Options->Windows Explorer context menu)
  • Delete functions now use standard windows dialogs
  • Files or folders deleted using another application (e.g. Windows explorer) will be detected and displayed as deleted in the tree and file view
  • 'Invalid record pos' error caused by highly fragmented MFT files fixed
  • Right clicking on top 1000 file list would not always select file being clicked on (fixed)
WizTree 1.00 (23 Nov 2012)
  • Initial release
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