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Head-to-head · Disk Space Analyzers

WinDirStat vs DiskLens

  • Updated Oct 2026
  • Both researched from official sources
  • 5 checks side by side
Higher score WinDirStat #2 in Disk Space Analyzers 9.1/10 Free plan Free plan✓ 3 of 5 features Visit WinDirStat
DiskLens #32 in Disk Space Analyzers 5.6/10 Free plan Free plan✓ 3 of 5 features Visit DiskLens

WinDirStat leads on 1 check, DiskLens on 0, and 4 are even. Who comes out ahead on the 5 yes/no, price and count checks where we have data for both products. The editor score weighs everything else too.

Our verdict

  • Highest scoreWinDirStat · 9.1/10
  • Free planboth

WinDirStat scores higher on our rubric for disk space analyzers: 9.1 against 5.6 out of 10; our editors rank them #2 and #32.

WinDirStat offers treemap view; DiskLens doesn't. On scan scope, DiskLens gives you Files_folders_apps where WinDirStat offers Files_folders.

WinDirStat is the better fit for classic free Windows disk analysis. DiskLens is the better fit for free macOS and Windows visual analysis.

  • WinDirStat fits best

    Classic free Windows disk analysis

  • DiskLens fits best

    Free macOS and Windows visual 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 WinDirStat 9.1/10 Visit ↗ DiskLens 5.6/10 Visit ↗
At a glance
Editor score 9.1 5.6
Ranking #2 in Disk Space Analyzers #32 in Disk Space Analyzers
Best for Classic free Windows disk analysis Free macOS and Windows visual analysis
Pricing model Free Free
Starting price Free plan Free plan
Free plan ✓ ✓
Free trial — —
Deployment Desktop Desktop
Platforms Windows Windows, macOS
Support Community Email, Docs
Built for Solo, Small business Solo, Small business
Features WinDirStat 3/5 · DiskLens 3/5
Treemap view ✓ (best) —
Application sizes Not checked yet ✓ (best)
File-type breakdown ✓ ✓
External drive scans Not checked yet Not checked yet
Exportable reports ✓ ✓
Specs
Desktop platforms Windows macOS, Windows
Scan scope Files_folders Files_folders_apps
Our review
Pros
  • Interactive treemap makes large storage areas easy to spot
  • Duplicate detection supports content- or hash-based matching
  • CSV export, search, and filtering support follow-up analysis
  • Free for personal and commercial use on macOS and Windows
  • Interactive sunburst chart plus largest-file and extension analysis
  • Local scans, cleanup actions, exclusions, and CSV/XML reports
Cons
  • Windows-only availability limits cross-platform use
  • Scanning is focused on local drives and individual folders
  • Cleanup workflows are centered on files and scan results
  • Scans local folders and drives rather than broader storage environments
  • Reports are limited to CSV and XML formats
  • Platform connections focus on Finder and Windows Explorer
Our verdict

WinDirStat is a free, open-source disk usage analyzer and cleanup tool for Microsoft Windows. It is designed for people who need to understand where storage is being used across local drives or individual folders. The interface combines…

Read the review →

DiskLens is a desktop disk-space analyzer for macOS and Windows. It scans local folders or drives and presents storage usage through an interactive sunburst chart, helping users drill into folder and drive contents. The product also…

Read the review →
  1. WinDirStatDisk Space Analyzers 9.1Free plan
  2. DiskLensDisk Space Analyzers 5.6Free plan

Strengths and trade-offs

  • WinDirStat — where it wins

    • Interactive treemap makes large storage areas easy to spot
    • Duplicate detection supports content- or hash-based matching
    • CSV export, search, and filtering support follow-up analysis

    Where it doesn't

    • Windows-only availability limits cross-platform use
    • Scanning is focused on local drives and individual folders
    • Cleanup workflows are centered on files and scan results
  • DiskLens — where it wins

    • Free for personal and commercial use on macOS and Windows
    • Interactive sunburst chart plus largest-file and extension analysis
    • Local scans, cleanup actions, exclusions, and CSV/XML reports

    Where it doesn't

    • Scans local folders and drives rather than broader storage environments
    • Reports are limited to CSV and XML formats
    • Platform connections focus on Finder and Windows Explorer

More comparisons

Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026

Last updated · How we research and update