Every hard disk is too small if you just wait long enough. TreeSize Free tells you where precious space has gone to. TreeSize Free can be started from the context menu of a folder or drive and shows you the size of this folder, including its subfolders. Each folder can be expanded in Explorer-like style to see the size of its subfolders. Scanning is done in a thread, so you can already see results while TreeSize is working. The space, which is wasted by the file system can be displayed and the results can be printed in a report.

Efficient Disk Space Reporting

Scan your volumes in seconds and see the size of all folders including all subfolders and break it down to file level.

Quickly Clean Up Your Disks

With the integrated Windows Explorer context menu and the usual keyboard shortcuts you can quickly get rid of unwanted stuff.

Stunning visualization

See the distribution of the used disk space at a glance with our customizable treemap chart.

What's New

Improvements

  • TreeSize Free is now available again in the Windows context menu for drives, allowing you to quickly check the size of folders and files directly by right-clicking.

Bug fixes

  • A possible vulnerability due to a DLL hijacking attack during installation in the user profile has been fixed.

Error corrections

  • A problem with the display of text in dialogs in dark mode that was introduced with recent updates for Windows 11 has been fixed.
  • Personal Edition: Scans of network drives are now also possible again in private networks where the logged-in user uses a school or work account.
  • File search: A problem that could cause TreeSize to freeze when displaying certain columns in the duplicate search results has been fixed.
  • File search: When searching for file content, the character encoding of certain files could be recognized incorrectly. As a result, search terms with special characters may not have been found. Recognition of the encoding has been improved.
  • An error in the file operations when moving files to a cloud storage (S3, SharePoint, etc...) has been fixed, where files were deleted if the login to the cloud storage failed.
  • An error when deleting files within ZIP files has been fixed.
  • The height and column widths of the drive overview in the main application are now restored correctly on startup.
  • User-based SharePoint authentication now requires the configuration of an additional redirect URI in your Azure application registration in the following format: 'ms-appx-web://microsoft.aad.brokerplugin/{client_id}'. Please ensure that you replace {client_id} with your actual client ID.

Previous release notes

  • Under certain circumstances, an unhandled error could occur when accessing the Tools tab or opening the About dialog. This error has been fixed.
  • In addition, in the demo version, this error could cause the application to assume the Personal edition, even though the Professional edition was selected during installation. This error has been fixed as well.
  • The "Last saved by" column now provides correct values again for files on SharePoint.
  • Other minor corrections and improvements have been made.
  • Update installations are now using the path of existing 32-bit installations, so that older versions are replaced again as usual.
  • The line height on high-resolution monitors was too small, this has been corrected.
  • An error that occurred when scanning a disk mounted in a folder has been fixed.