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Head-to-head · Disk Space Analyzers

TreeSize vs SpaceObServer

  • Updated Oct 2026
  • Both researched from official sources
  • 5 checks side by side
Higher score TreeSize #1 in Disk Space Analyzers 9.3/10 Free plan · 14-day trial Free planFree trial✓ 4 of 5 features Visit TreeSize
SpaceObServer #5 in Disk Space Analyzers 8.8/10 Paid ✓ 4 of 5 features Visit SpaceObServer

TreeSize leads on 1 check, SpaceObServer 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 scoreTreeSize · 9.3/10
  • Free planonly TreeSize
  • Free trialonly TreeSize

TreeSize scores higher on our rubric for disk space analyzers: 9.3 against 8.8 out of 10; our editors rank them #1 and #5.

TreeSize offers free plan; SpaceObServer doesn't.

TreeSize is the better fit for windows power users and administrators. SpaceObServer is the better fit for enterprise Windows storage reporting.

  • TreeSize fits best

    Windows power users and administrators

  • SpaceObServer fits best

    Enterprise Windows storage reporting

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Side by side

Feature TreeSize 9.3/10 Visit ↗ SpaceObServer 8.8/10 Visit ↗
At a glance
Editor score 9.3 8.8
Ranking #1 in Disk Space Analyzers #5 in Disk Space Analyzers
Best for Windows power users and administrators Enterprise Windows storage reporting
Pricing model Free plan + paid Paid
Starting price — —
Free plan ✓ (best) —
Free trial 14 days —
Deployment Desktop, Self-hosted Self-hosted, Desktop
Platforms Windows Windows
Compliance GDPR GDPR
Built for Solo, Small business, Mid-market, Enterprise Mid-market, Enterprise
Features TreeSize 4/5 · SpaceObServer 4/5
Treemap view ✓ ✓
Application sizes Not checked yet Not checked yet
File-type breakdown ✓ ✓
External drive scans ✓ ✓
Exportable reports ✓ ✓
Specs
Desktop platforms Windows windows
Scan scope Files_folders Files_folders
Our review
Pros
  • Analyzes files, folders, drives, servers, networks, and cloud storage
  • Combines treemaps, file-type statistics, duplicate search, and cleanup tools
  • Supports scheduled scans, comparisons, portable use, and extensive exports
  • Directory, file, duplicate, history, and distribution analysis
  • Recurring scans with Excel, HTML, PDF, CSV, text, and image exports
  • Integrations across SharePoint, Azure Blob Storage, Amazon S3, and Linux/Unix
Cons
  • Runs on Windows rather than across multiple desktop platforms
  • TreeSize Free is limited to private, non-commercial use
  • Advanced automation and reporting require paid editions
  • Paid product with no free plan
  • Windows desktop deployment limits platform flexibility
  • Advanced automated reporting is limited to Enterprise Edition
Our verdict

TreeSize is Windows disk-space analysis software for individuals, power users, consultants, and IT administrators. It scans local and network storage, then presents folder and file sizes through directory, chart, pie, bar, and treemap…

Read the review →

SpaceObServer is an on-premises Windows application for analyzing and managing storage across servers, shares, drives, and supported cloud storage systems. It is aimed at mid-market and enterprise organizations that need recurring…

Read the review →
  1. TreeSizeDisk Space Analyzers 9.3Free plan · 14-day trial
  2. SpaceObServerDisk Space Analyzers 8.8Paid

Strengths and trade-offs

  • TreeSize — where it wins

    • Analyzes files, folders, drives, servers, networks, and cloud storage
    • Combines treemaps, file-type statistics, duplicate search, and cleanup tools
    • Supports scheduled scans, comparisons, portable use, and extensive exports

    Where it doesn't

    • Runs on Windows rather than across multiple desktop platforms
    • TreeSize Free is limited to private, non-commercial use
    • Advanced automation and reporting require paid editions

  • SpaceObServer — where it wins

    • Directory, file, duplicate, history, and distribution analysis
    • Recurring scans with Excel, HTML, PDF, CSV, text, and image exports
    • Integrations across SharePoint, Azure Blob Storage, Amazon S3, and Linux/Unix

    Where it doesn't

    • Paid product with no free plan
    • Windows desktop deployment limits platform flexibility
    • Advanced automated reporting is limited to Enterprise Edition

More comparisons

All disk space analyzers comparisons → · Full ranking →

Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026

Last updated · How we research and update