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Download TreeSize 9.9.1 for Windows

With TreeSize, you can analyze your most important storage systems and directly manage and clean up your files.

JAM Software Disk & USB tools #19 Disk & USB tools

With TreeSize, you can analyze your most important storage systems and directly manage and clean up your files.

Publisher’s description

What is TreeSize?

TreeSize by JAM Software is proprietary Windows software in the disk & usb tools category. It ranks 19th by popularity among disk & usb tools in this catalogue.

Installation and requirements

The publisher provides EXE (Inno Setup) installers for 64-bit Windows. The main installer is 39.0 MB. Installation asks for administrator rights. It needs Windows 10 or newer. A silent install is possible with the installer’s documented switches.

Updates and version history

The current version is 9.9.1, released on October 14, 2026. The version history goes back to September 19, 2023: 25 releases, all linked to the official files. That is about 8.1 releases a year. The last update is less than a month old.

Popularity and file types

The Chocolatey package has been downloaded 739,278 times. Similar programs include Rufus, Ventoy and smartmontools.

Pros / Cons

Pros

  • Documented silent install
  • Frequent updates (about 8.1 a year)

Cons

  • Proprietary licence: check the terms and price
  • No native ARM64 build
  • Installation needs administrator rights

In short: TreeSize is a disk & usb tool tool for 64-bit PCs. It is actively maintained. Administrators can deploy it unattended.

Is TreeSize safe to download?

  • The file is served by downloads.jam-software.de; check that it is the publisher’s official mirror
  • The download link uses HTTPS
  • A SHA256 hash is published, so you can verify the file: 8005E320671B67A2F72AC2B0B3B70853E55FA4A764C762A3A026EF4F4CDE5319 · Open the VirusTotal report for this hash
  • The link answered when we last checked it (October 22, 2026)
  • ExeAtlas does not host, wrap or modify installers

Related guide: How to check a file’s SHA256 hash on Windows

Recent versions

All 25 versions ›
2023: 1 1 23 2024: 9 9 24 2025: 7 7 25 2026: 8 8 26

25 versions over 3 years · about 8.1 a year

VersionDateSizeFiles
9.9.1Latest October 14, 2026 39.0 MB 64-bit EXE (Inno Setup)
9.9 October 5, 2026 39.0 MB 64-bit EXE (Inno Setup)
9.8.2 July 6, 2026 40.4 MB 64-bit EXE (Inno Setup)
9.8.1 June 12, 2026 40.4 MB 64-bit EXE (Inno Setup)
9.8 April 28, 2026 40.4 MB 64-bit EXE (Inno Setup)
9.7.2 March 4, 2026 39.1 MB 64-bit EXE (Inno Setup)
9.7.1 February 17, 2026 39.1 MB 64-bit EXE (Inno Setup)
9.7 February 13, 2026 39.1 MB 64-bit EXE (Inno Setup)

Install from the command line

Silent install ›
PowerShell
wingetwinget install --id JAMSoftware.TreeSize -e
chocochoco install treesize -y
silentTreeSize-Setup.exe /VERYSILENT /SUPPRESSMSGBOXES /NORESTART /SP-

Related guide: How to use winget: install and update apps

Information

Publisher
JAM Software
Category
Disk & USB tools
Licence
Proprietary
Price
See the publisher’s site
Requires
Windows 11 / 10 (Windows 10+)
Architecture
64-bit
Installer
EXE (Inno Setup)
Version
9.9.1
Released
October 14, 2026
Added to the catalogue
September 19, 2023
Versions listed
25
Updates / year
8.1
Chocolatey downloads
739,278
Website
jam-software.com
winget ID
JAMSoftware.TreeSize
Chocolatey package
treesize

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Frequently asked questions

Is TreeSize free?

TreeSize is proprietary (closed-source) software (licence: Proprietary). Whether it costs money depends on the edition: check the publisher’s site for prices and free tiers.

Is TreeSize safe to download?

The download comes from downloads.jam-software.de; ExeAtlas does not host or change the file. Compare its SHA256 hash with the one shown here, or open the VirusTotal report for that hash.

How do I install TreeSize with winget?

Open PowerShell or Windows Terminal and run the winget command shown on this page. winget downloads the official installer and checks its SHA256 hash before running it.

Can TreeSize be installed silently?

Yes. The silent install page lists the exact command for each installer.

Which Windows versions does TreeSize support?

The installer requires Windows 10 or newer and is available for 64-bit.

Does TreeSize run on ARM (Windows on Arm)?

There is no ARM64 build; Windows 11 on Arm can run the 64-bit version through emulation.

Where can I download an older version of TreeSize?

The versions page lists all 25 versions with links to their official installer files, back to September 19, 2023.

What are alternatives to TreeSize?

Rufus, Ventoy, smartmontools, unetbootin and gdu. The alternatives page compares them.

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Most popular in Disk & USB tools

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  1. RufusA utility that helps format and create bootable USB flash drives, such as USB keys/pendrives, memory sticks, etc.
  2. VentoyVentoy is an open source tool to create bootable USB drive for ISO/WIM/IMG/VHD(x)/EFI files.
  3. unetbootinUNetbootin allows you to create bootable Live USB drives for Ubuntu and other Linux distributions without burning a CD.
  4. smartmontoolssmartmontools contains utility programs (smartctl, smartd) to control/monitor storage systems using the Self-Monitoring, Analysis and Reporting Technology System (S.M.A.R.T.) built into most modern ATA and SCSI disks. It is derived from smartsuite.
  5. gduPretty fast disk usage analyzer written in Go.
  6. WinFsp 2024 Beta2Windows File System Proxy - FUSE for Windows
  7. GSmartControlHard disk drive and SSD health inspection tool
  8. DefragglerBoost performance by reassembling fragmented files
  9. SquirrelDiskThe easiest open source app you will ever use to detect huge files.
  10. dufDisk Usage/Free Utility - a better 'df' alternative

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  • TreeSize FreeEvery hard disk is too small if you just wait long enough. TreeSize Free tells you where precious disk space has gone.

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