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Head-to-head · Disk Space Analyzers

WizTree vs QDirStat

  • Updated Oct 2026
  • Both researched from official sources
  • 6 checks side by side
Higher score WizTree #4 in Disk Space Analyzers 8.9/10 Free plan Free plan✓ 4 of 5 features Visit WizTree
QDirStat #17 in Disk Space Analyzers 7.1/10 Free plan Free plan✓ 3 of 5 features Visit QDirStat

WizTree leads on 0 checks, QDirStat on 1, and 5 are even. Who comes out ahead on the 6 yes/no, price and count checks where we have data for both products. The editor score weighs everything else too.

Our verdict

  • Highest scoreWizTree · 8.9/10
  • Free planboth
  • Most featuresWizTree · 4 of 5

WizTree scores higher on our rubric for disk space analyzers: 8.9 against 7.1 out of 10; our editors rank them #4 and #17.

QDirStat offers application sizes; WizTree doesn't. On scan scope, QDirStat gives you Files_folders_apps where WizTree offers Files_folders.

WizTree is the better fit for fast, simple Windows space analysis. QDirStat is the better fit for free cross-platform desktop analysis.

  • WizTree fits best

    Fast, simple Windows space analysis

  • QDirStat fits best

    Free cross-platform desktop analysis

Advertiser disclosure: iTechGuides is reader-supported. Vendors can pay for top positions in our rankings and for a place on other products' pages, and we may earn a commission when you click some links. Bought places stand at the number bought; this page and our disclosure say so. Paying vendors may get a fuller, more detailed review from our editors, and that review can change their score. How we rank.

Side by side

Feature WizTree 8.9/10 Visit ↗ QDirStat 7.1/10 Visit ↗
At a glance
Editor score 8.9 7.1
Ranking #4 in Disk Space Analyzers #17 in Disk Space Analyzers
Best for Fast, simple Windows space analysis Free cross-platform desktop analysis
Pricing model Free plan + paid Free
Starting price — Free plan
Free plan ✓ ✓
Free trial — —
Deployment Desktop Desktop
Platforms Windows, macOS Linux, macOS
Built for Solo, Small business, Mid-market, Enterprise Solo, Small business
Features WizTree 4/5 · QDirStat 3/5
Treemap view ✓ ✓
Application sizes — ✓ (best)
File-type breakdown ✓ ✓
External drive scans ✓ (best) Not checked yet
Exportable reports ✓ (best) Not checked yet
Specs
Desktop platforms Windows, macOS Linux, BSD, Unix-like systems; macOS
Scan scope Files_folders Files_folders_apps
Our review
Pros
  • Visual treemap and tree views reveal large storage consumers
  • Scans network, USB, MTP/PTP devices, and individual directories
  • Wildcard search, duplicate detection, and CSV export support cleanup work
  • Free GPL v2 open-source access
  • Treemap, tree, file-type, age, and histogram views
  • Cleanup actions and Linux package integrations
Cons
  • The free version is limited to personal use
  • Available only on Windows
  • Commercial licensing is required for business use
  • No native Windows version
  • Package views depend on supported Linux systems
  • macOS binaries come through a separate distributor repository
Our verdict

WizTree is a Windows disk-space analyzer for people who need to understand how files and folders consume storage. It scans hard drives, network drives, USB drives, MTP/PTP devices, and individual directories, then presents the results in…

Read the review →

QDirStat is a free, open-source graphical disk-usage analyzer for Linux and macOS. It is designed for users who need to locate large files, understand directory usage, inspect installed software, and clean up local storage. Its main…

Read the review →
  1. WizTreeDisk Space Analyzers 8.9Free plan
  2. QDirStatDisk Space Analyzers 7.1Free plan

Strengths and trade-offs

  • WizTree — where it wins

    • Visual treemap and tree views reveal large storage consumers
    • Scans network, USB, MTP/PTP devices, and individual directories
    • Wildcard search, duplicate detection, and CSV export support cleanup work

    Where it doesn't

    • The free version is limited to personal use
    • Available only on Windows
    • Commercial licensing is required for business use
  • QDirStat — where it wins

    • Free GPL v2 open-source access
    • Treemap, tree, file-type, age, and histogram views
    • Cleanup actions and Linux package integrations

    Where it doesn't

    • No native Windows version
    • Package views depend on supported Linux systems
    • macOS binaries come through a separate distributor repository

More comparisons

Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026

Last updated · How we research and update