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Utilities · head to head

CCleaner vs WinDirStat

CCleaner logo

CCleaner

Utilities

System cleanup and optimisation utility for Windows and Mac

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: CCleaner registry cleaning has little measurable benefit on modern Windows and carries some risk of removing something needed; 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: CCleaner covers Junk file cleanup, WinDirStat covers Treemap visualisation.
  • Prices and features above were last checked on 31 August 2026.

Where they differ

Only the attributes on which CCleaner and WinDirStat actually diverge.

Attributes where CCleaner and WinDirStat differ
AttributeCCleanerWinDirStat
Pricing modelFree tier with paid Professional; see vendor for current ratesOpen source, no licence fee
PlatformsWindows, macOS, AndroidWindows

Identical on both: starting price (Free), 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 CCleaner

  • Junk file cleanup
  • Registry cleaner
  • Startup manager
  • Software uninstaller

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.

CCleaner

  • Reclaiming disk space from accumulated caches and temporary filesnot WinDirStat
  • Controlling startup programs on a slow-booting machinenot WinDirStat
  • Bulk uninstalling softwarenot WinDirStat

WinDirStat

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

Where each one falls short

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

CCleaner

  • Registry cleaning has little measurable benefit on modern Windows and carries some risk of removing something needed
  • The free version prompts toward the paid one persistently
  • A 2017 supply chain compromise distributed malware through an official signed build, which permanently changed how some administrators view it
  • Much of what it does is achievable with the disk cleanup tools built into Windows

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

CCleaner

Free
  • FreeFree
    • Core functionality
    • Personal use

WinDirStat

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

Which should you pick?

Choose CCleaner if

  • You need junk file cleanup.
  • You want to start without paying.
  • You work on Windows, macOS, Android.
  • You also want registry cleaner.
CCleaner 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 CCleaner or WinDirStat better?
Neither clearly leads. CCleaner 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, CCleaner or WinDirStat?
CCleaner starts at Free and WinDirStat at Free.
Does CCleaner or WinDirStat run on more platforms?
CCleaner runs on Windows, macOS, Android. WinDirStat runs on Windows.
Can I use CCleaner for free?
Both have a free tier, so you can try either at no cost before committing.
What is CCleaner best used for?
CCleaner is most often used for reclaiming disk space from accumulated caches and temporary files, controlling startup programs on a slow-booting machine, bulk uninstalling software. Of those, reclaiming disk space from accumulated caches and temporary files and controlling startup programs on a slow-booting machine are not what WinDirStat is typically brought in for.
What can CCleaner do that WinDirStat cannot?
CCleaner covers Junk file cleanup, Registry cleaner, Startup manager, Software uninstaller. WinDirStat covers Treemap visualisation, Three linked views, Multithreaded scanning, Cleanup actions.

Answered from the vendors’ own pages

CCleaner: Is CCleaner free?

There is a free version, with a paid Professional tier adding scheduled cleaning and real-time monitoring.

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.

CCleaner: Does registry cleaning actually help?

Very little on modern Windows. The measurable gains come from clearing caches and controlling startup programs, not from the registry.

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.

CCleaner: Is CCleaner safe?

It is a mainstream product from Gen Digital, though a 2017 supply chain attack distributed malware via an official build. That was resolved, and it remains a fair reason some administrators avoid it.

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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