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Utilities · head to head

Ventoy vs WinDirStat

Ventoy logo

Ventoy

Utilities

Multiboot USB creator that boots ISO files copied onto an ordinary partition

From
Free
Rated
-
Full reviewWebsite
WinDirStat logo

WinDirStat

Utilities

Windows disk usage analyser that shows where space went as a colour-coded treemap

From
Free
Rated
-
Full reviewWebsite

The short version

  • Each has a real cost: Ventoy the repository ships prebuilt binaries that are difficult to reproduce from source, so several Linux distributions refuse to package it and security teams in regulated organisations will usually reject it.; WinDirStat it walks the directory tree rather than reading the NTFS master file table, so a full scan takes minutes where WizTree takes seconds on the same drive.
  • They diverge on capability: Ventoy covers In-place ISO boot, WinDirStat covers Treemap visualisation.
  • Prices and features above were last checked on 31 August 2026.

Where they differ

Only the attributes on which Ventoy and WinDirStat actually diverge.

Attributes where Ventoy and WinDirStat differ
AttributeVentoyWinDirStat
PlatformsWindows, LinuxWindows

Identical on both: starting price (Free), pricing model (Open source, no licence fee), free tier (Yes), user rating (Not yet rated), category (Utilities).

What each one covers

Drawn from each product's published feature list. An absence here means we hold no record of it - not that the product lacks it.

Only in Ventoy

  • In-place ISO boot
  • Persistent overlays
  • Plugin configuration
  • Secure Boot support
  • Multi-format boot
  • Non-destructive install

Only in WinDirStat

  • Treemap visualisation
  • Three linked views
  • Multithreaded scanning
  • Cleanup actions
  • Any filesystem
  • GPL licensed

What people use each for

The jobs each tool is most often brought in to do.

Ventoy

  • Field technicians who need one stick carrying several Windows and Linux installers plus a rescue environmentnot WinDirStat
  • Labs that reimage machines weekly and want to swap a single ISO rather than rewrite the drivenot WinDirStat
  • Testing a new distribution release without destroying the existing set of imagesnot WinDirStat
  • Unattended installation runs where answer files sit beside the ISOs on the same partitionnot WinDirStat

WinDirStat

  • Finding what filled a Windows system drive when the usual suspects are not responsiblenot Ventoy
  • Auditing a shared or network drive where files are spread across thousands of foldersnot Ventoy
  • Environments where licence terms forbid personal-use-only freeware on company machinesnot Ventoy
  • Explaining disk usage visually to someone who will not read a list of folder sizesnot Ventoy

Where each one falls short

Documented limitations, not opinions. Every one is a constraint you would hit in normal use.

Ventoy

  • The repository ships prebuilt binaries that are difficult to reproduce from source, so several Linux distributions refuse to package it and security teams in regulated organisations will usually reject it.
  • Development depends on one maintainer, so a period of inactivity leaves compatibility fixes for new distribution releases unaddressed with no second party able to cut a release.
  • Secure Boot works only after enrolling the Ventoy certificate through MokManager at the machine, which is a manual step at every device and is blocked outright on locked-down corporate firmware.
  • A small number of images still fail to boot in place and need workarounds, so a technician can discover mid-job that the one ISO they need is the one that does not work.
  • The data partition is exFAT by default, which means no file permissions and no journal, so a stick pulled during a copy can corrupt the whole image set rather than one file.

WinDirStat

  • It walks the directory tree rather than reading the NTFS master file table, so a full scan takes minutes where WizTree takes seconds on the same drive.
  • The version most users have installed is the 2007 build, and because it was dormant for so long, search results and download mirrors still point at it.
  • It is Windows only, so a mixed estate needs a different tool for macOS and Linux machines.
  • There is no scheduling, reporting or export for fleet use, so it answers a question on one machine at a time rather than monitoring storage across an organisation.
  • Hard links, junctions and deduplicated volumes can be counted in ways that make the totals disagree with what Windows reports, which causes confusion on servers.

Pricing, plan by plan

Ventoy

Free
  • VentoyFree
    • Full feature set with no paid edition
    • GPLv3 licence
    • Windows and Linux installers

WinDirStat

Free
  • WinDirStatFree
    • GPL licensed
    • Commercial use permitted
    • No paid edition or feature gating

Which should you pick?

Choose Ventoy if

  • You need in-place iso boot.
  • You want to start without paying.
  • You work on Windows, Linux.
  • You also want persistent overlays.
Ventoy review

Choose WinDirStat if

  • You need treemap visualisation.
  • You want to start without paying.
  • You work on Windows.
  • You also want three linked views.
WinDirStat review

Questions people ask

Is Ventoy or WinDirStat better?
Neither clearly leads. Ventoy starts at Free and WinDirStat at Free, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, Ventoy or WinDirStat?
Ventoy starts at Free and WinDirStat at Free.
Does Ventoy or WinDirStat run on more platforms?
Ventoy runs on Windows, Linux. WinDirStat runs on Windows.
Can I use Ventoy for free?
Both have a free tier, so you can try either at no cost before committing.
What is Ventoy best used for?
Ventoy is most often used for field technicians who need one stick carrying several windows and linux installers plus a rescue environment, labs that reimage machines weekly and want to swap a single iso rather than rewrite the drive, testing a new distribution release without destroying the existing set of images, unattended installation runs where answer files sit beside the isos on the same partition. Of those, field technicians who need one stick carrying several windows and linux installers plus a rescue environment and labs that reimage machines weekly and want to swap a single iso rather than rewrite the drive are not what WinDirStat is typically brought in for.
What can Ventoy do that WinDirStat cannot?
Ventoy covers In-place ISO boot, Persistent overlays, Plugin configuration, Secure Boot support. WinDirStat covers Treemap visualisation, Three linked views, Multithreaded scanning, Cleanup actions.

Answered from the vendors’ own pages

Ventoy: Can I still use the USB stick for ordinary file storage?

Yes. The data partition mounts as normal removable storage and files that are not bootable images are simply ignored by the menu.

WinDirStat: Is WinDirStat still maintained?

Yes. It was dormant from around 2007 until new maintainers resumed development and released the 2.x line with multithreaded scanning and current Windows support.

Ventoy: Do I need to reinstall Ventoy when a new distribution version comes out?

No. Delete the old ISO and copy the new one. You only rerun the installer to upgrade Ventoy itself.

WinDirStat: Can I use it at work?

Yes. It is GPL licensed with no personal-use restriction, which is the practical advantage over free-for-personal-use alternatives in this category.

Ventoy: Is it safe to use in a company that audits open source?

Often not. The unreproducible prebuilt binaries in the repository are a genuine audit finding and have blocked approval at organisations with supply chain review.

WinDirStat: Why is it slower than WizTree?

Different method. WizTree reads the NTFS master file table directly; WinDirStat traverses directories, which is slower but works on any filesystem, including network shares.

WinDirStat: Does it run on macOS or Linux?

No. Separate projects exist with similar treemap interfaces, but WinDirStat itself is Windows only.

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