Best Duc Alternatives in 2026

20 apps from disk space analyzers ranked against Duc on the same published basis.

  1. 1Duc vs TreeSize
  2. 2Duc vs WizTree
  3. 3Duc vs Disk Usage Analyzer
  4. 4Duc vs FolderSizes
  5. 5Duc vs SizeTrend
  6. 6Duc vs Disk Analyzer Pro
  7. 7Duc vs StorageRadar
  8. 8Duc vs Disk Auditor
  9. 9Duc vs Drive Atlas
  10. 10Duc vs DiskAtlas
  11. 11Duc vs LumaDisk
  12. 12Duc vs Folder Size
  13. 13Duc vs Space Wizard
  14. 14Duc vs OverClean
  15. 15Duc vs gdu
  16. 16Duc vs SpaceMap
  17. 17Duc vs eDirStat
  18. 18Duc vs DiskBrain
  19. 19Duc vs agedu
  20. 20Duc vs ncdu

Duc alternatives compared

#AppScoreFree planFromRuns on
1TreeSize8.0Free planFreeWindows
2WizTree8.0Free plan$25/moMac, Windows
3Disk Usage Analyzer7.8Free planFreeLinux
4FolderSizes7.8Free planFreeWindows
5SizeTrend7.8Free planFreeWindows
6Disk Analyzer Pro7.7Free planFreeMac, Windows
7StorageRadar7.6Free plan$9.99/moMac
8Disk Auditor7.5Free planFreeWindows
9Drive Atlas7.5Free plan$20/moLinux, Windows
10DiskAtlas7.4Free plan$5/moMac
11LumaDisk7.4Free plan$6.89/moMac, Windows
12Folder Size7.3Free plan$24.95/moWindows
13Space Wizard7.3Free planFreeLinux, Mac, Windows
14OverClean7.2Free plan$9.99/moMac
15gdu7.2Free planFreeLinux, Mac, Web, Windows
16SpaceMap7.1Free planFreeMac
17eDirStat7.0No—Linux, Mac, Web, Windows
18DiskBrain7.0Free plan$2/moWindows
19agedu7.0Free planFreeLinux, Web
20ncdu7.0Free planFreeLinux, Mac, self-hosted, Windows
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Questions about Duc alternatives

What is the best alternative to Duc?

TreeSize, number 1 in disk space analyzers with a score of 8.0 out of 10. The others here: WizTree, Disk Usage Analyzer, FolderSizes and 16 more.

What is the best free alternative to Duc?

TreeSize is the best-ranked alternative with a free plan. 19 of the 20 alternatives here publish a free plan on their own pricing pages.

How are these alternatives ranked?

Ranked free-and-open first: a usable free tier and open-source code, then the platforms it runs on and its documentation.