Best Duplo Alternatives in 2026

20 apps from code clone detection tools ranked against Duplo on the same published basis.

  1. 2Duplo vs PMD
  2. 3Duplo vs CloneWorks
  3. 4Duplo vs dcd
  4. 5Duplo vs jscpd
  5. 6Duplo vs NiCad
  6. 7Duplo vs Simian Similarity Analyzer
  7. 8Duplo vs Algo VPN
  8. 9Duplo vs copydetect
  9. 10Duplo vs Hound
  10. 11Duplo vs QuickDup
  11. 12Duplo vs CCFinderSW
  12. 13Duplo vs Deckard
  13. 14Duplo vs art-dupl
  14. 15Duplo vs @kongyo2/similarity-ts
  15. 16Duplo vs Amimica
  16. 17Duplo vs CopyPaste
  17. 18Duplo vs dskDitto
  18. 19Duplo vs DUDE (DUplicates DEtector)
  19. 20Duplo vs phpcpd-next
  20. 21Duplo vs semdup

Duplo alternatives compared

#AppScoreFree planFromRuns on
2PMD6.6Free planFreeLinux, Mac, self-hosted, Windows
3CloneWorks6.5Free planFreeLinux, Mac, Windows
4dcd6.5Free planFreeLinux, Mac
5jscpd6.5Free planFreeAPI, Linux, Mac, self-hosted, Windows
6NiCad6.5Free planFreeLinux, Mac, self-hosted, Windows
7Simian Similarity Analyzer6.5Free planFreeLinux, Mac, Windows
8Algo VPN5.6No—Android, iOS, Linux, Mac, Windows
9copydetect5.6No—API, Linux, Mac, self-hosted, Windows
10Hound5.6No—API, Linux, Mac, self-hosted, Web
11QuickDup5.5No—Linux, Mac, Windows
12CCFinderSW5.4No—Windows
13Deckard5.4No—Windows, Mac, Linux
14art-dupl5.3No——
15@kongyo2/similarity-ts5.1No——
16Amimica5.1No——
17CopyPaste5.1Free planFreeMac, Windows
18dskDitto5.1No—Linux, Mac
19DUDE (DUplicates DEtector)5.1No—Windows, Linux
20phpcpd-next5.1Free planFreeAPI, Linux, self-hosted
21semdup5.1No—Linux, Mac, self-hosted, Windows
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Questions about Duplo alternatives

What is the best alternative to Duplo?

PMD, number 2 in code clone detection tools with a score of 6.6 out of 10. The others here: CloneWorks, dcd, jscpd and 16 more.

What is the best free alternative to Duplo?

PMD is the best-ranked alternative with a free plan. 8 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.