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Head-to-head · Duplicate File Finders

AllDup vs Cisdem Duplicate Finder

  • Updated Oct 2026
  • Both researched from official sources
  • 5 checks side by side
Higher score AllDup #1 in Duplicate File Finders 9.0/10 Free plan Free plan✓ 4 of 4 features Visit AllDup
Cisdem Duplicate Finder #11 in Duplicate File Finders 7.4/10 Paid ✓ 4 of 4 features Visit Cisdem

AllDup leads on 1 check, Cisdem Duplicate Finder 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 scoreAllDup · 9.0/10
  • Free planonly AllDup

AllDup scores higher on our rubric for duplicate file finders: 9.0 against 7.4 out of 10; our editors rank them #1 and #11.

AllDup offers free plan; Cisdem Duplicate Finder doesn't. On platform coverage, Cisdem Duplicate Finder gives you Cross-platform where AllDup offers Windows.

AllDup is the better fit for windows users wanting a fully free finder. Cisdem Duplicate Finder is the better fit for cross-platform users with cloud libraries.

  • AllDup fits best

    Windows users wanting a fully free finder

  • Cisdem Duplicate Finder fits best

    Cross-platform users with cloud libraries

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Side by side

Feature AllDup 9.0/10 Visit ↗ Cisdem Duplicate Finder 7.4/10 Visit ↗
At a glance
Editor score 9.0 7.4
Ranking #1 in Duplicate File Finders #11 in Duplicate File Finders
Best for Windows users wanting a fully free finder Cross-platform users with cloud libraries
Pricing model Free Paid
Starting price Free plan $24.99/device/yr
Free plan ✓ (best) —
Free trial — —
Deployment Desktop Desktop
Platforms Windows Windows, macOS
Integrations 4 integrations 2 integrations
Features AllDup 4/4 · Cisdem Duplicate Finder 4/4
File preview ✓ ✓
Automatic selection ✓ ✓
Recycle Bin / Trash ✓ ✓
Folder exclusions ✓ ✓
Specs
Platform coverage Windows Cross-platform
Scan locations local drives and storage media; network paths and shares; archive files including ZIP, RAR, and 7Z Selected folders and drives, external storage, Mac Photos libraries, and OneDrive and Dropbox accounts on Windows; Mac scans synced cloud folders locally.
Match methods file content; image similarity; sound similarity; filename; file size; modification or creation date; file attributes; hard links; video or sound duration XXH3 content hashing with file-size prefiltering for duplicate files; visual-content methods for similar photos, including DINOv2 Small on Windows and Histogram, Features, and pHash on Mac.
Our review
Pros
  • Matches files by content, names, metadata, media similarity, and duration
  • Scans local storage, network paths, and ZIP, RAR, and 7Z archives
  • Previews results and automates selection before sending files to Recycle Bin
  • Matches duplicates by content, not just filenames
  • Finds visually similar, edited, resized, and burst photos
  • Scans drives, removable media, cloud accounts, and media libraries
Cons
  • Available only for Windows
  • Does not include AI features
  • Integrations focus on Windows media and document applications
  • No free plan; paid access starts at $39.99 one time
  • Each listed license covers 1 PC
  • Some AI similar-photo features differ between Windows and macOS
Our verdict

AllDup is a free Windows utility for locating and managing duplicate files across local drives, storage media, network paths, and supported archive files. It suits Windows users who want broad control without a paid plan, including private…

Read the review →

Cisdem Duplicate Finder is desktop software for Windows and macOS that identifies duplicate files through file-content comparison and finds visually similar photos. It is suited to people managing internal drives, external storage, SD…

Read the review →
  1. AllDupDuplicate File Finders 9.0Free plan
  2. Cisdem Duplicate FinderDuplicate File Finders 7.4Paid

Strengths and trade-offs

  • AllDup — where it wins

    • Matches files by content, names, metadata, media similarity, and duration
    • Scans local storage, network paths, and ZIP, RAR, and 7Z archives
    • Previews results and automates selection before sending files to Recycle Bin

    Where it doesn't

    • Available only for Windows
    • Does not include AI features
    • Integrations focus on Windows media and document applications

  • Cisdem Duplicate Finder — where it wins

    • Matches duplicates by content, not just filenames
    • Finds visually similar, edited, resized, and burst photos
    • Scans drives, removable media, cloud accounts, and media libraries

    Where it doesn't

    • No free plan; paid access starts at $39.99 one time
    • Each listed license covers 1 PC
    • Some AI similar-photo features differ between Windows and macOS

More comparisons

All duplicate file finders comparisons → · Full ranking →

Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026

Last updated · How we research and update