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Best DupliChecker Alternatives in 2026

Updated

20 apps from plagiarism checkers ranked against DupliChecker on the same published basis.

  1. 1
    Noplag Free plan apiLinuxMacself-hostedWeb $9.99/mo7.3
    DupliChecker vs Noplag
  2. 2
    Dolos Free plan apiLinuxself-hostedWebWin Free7.0
    DupliChecker vs Dolos
  3. 3
    PlagAware Free plan apiWeb €2.99/mo7.0
    DupliChecker vs PlagAware
  4. 4
    PrePostSEO Plagiarism Checker AndroidapiiOSMacWeb $0.35/mo6.9
    DupliChecker vs PrePostSEO Plagiarism Checker
  5. 5
    Quetext AI Detector Free plan apiextensionWeb $7.99/mo6.9
    DupliChecker vs Quetext AI Detector
  6. 6
    SmallSEOTools Plagiarism Checker Free plan apiextensionWeb $7.84/mo6.9
    DupliChecker vs SmallSEOTools Plagiarism Checker
  7. 7
    Copyscape Free plan apiself-hostedWeb $4.95/mo6.8
    DupliChecker vs Copyscape
  8. 8
    Originality.ai Free plan apiextensionWeb $12.95/mo6.8
    DupliChecker vs Originality.ai
  9. 9
    Plagiarism Checker X Free plan Win Free6.8
    DupliChecker vs Plagiarism Checker X
  10. 10
    Plagiarisma Free plan WebWin Free6.8
    DupliChecker vs Plagiarisma
  11. 11
    Smodin Plagiarism Checker AndroidapiextensioniOSWeb $10/mo6.5
    DupliChecker vs Smodin Plagiarism Checker
  12. 12
    Copyleaks AI Detector Free trial apiextensionWeb $1.17/mo6.4
    DupliChecker vs Copyleaks AI Detector
  13. 13
    PlagiarismSearch Free trial apiextensionWeb $27.95/mo6.4
    DupliChecker vs PlagiarismSearch
  14. 14
    Plagius Free trial MacWebWin $4.90/mo6.4
    DupliChecker vs Plagius
  15. 15
    PlagiarismCheck.org apiextensionWeb 6.3
    DupliChecker vs PlagiarismCheck.org
  16. 16
    Viper Web 6.3
    DupliChecker vs Viper
  17. 18
    Scribbr Plagiarism Checker Web 6.2
    DupliChecker vs Scribbr Plagiarism Checker
  18. 19
    MOSS WebLinux 5.8
    DupliChecker vs MOSS
  19. 20
    Plagramme Web 5.8
    DupliChecker vs Plagramme
  20. 21
    Red Paper Web 5.8
    DupliChecker vs Red Paper

DupliChecker alternatives compared

#AppScoreFree planFromRuns on
1Noplag7.3Free plan$9.99/moAPI, Linux, Mac, self-hosted, Web, Windows
2Dolos7.0Free planFreeAPI, Linux, self-hosted, Web, Windows
3PlagAware7.0Free plan€2.99/moAPI, Web
4PrePostSEO Plagiarism Checker6.9No$0.35/moAndroid, API, iOS, Mac, Web, Windows
5Quetext AI Detector6.9Free plan$7.99/moAPI, Browser, Web
6SmallSEOTools Plagiarism Checker6.9Free plan$7.84/moAPI, Browser, Web
7Copyscape6.8Free plan$4.95/moAPI, self-hosted, Web
8Originality.ai6.8Free plan$12.95/moAPI, Browser, Web
9Plagiarism Checker X6.8Free planFreeWindows
10Plagiarisma6.8Free planFreeWeb, Windows
11Smodin Plagiarism Checker6.5No$10/moAndroid, API, Browser, iOS, Web
12Copyleaks AI Detector6.4No$1.17/moAPI, Browser, Web
13PlagiarismSearch6.4No$27.95/moAPI, Browser, Web
14Plagius6.4No$4.90/moMac, Web, Windows
15PlagiarismCheck.org6.3No—API, Browser, Web
16Viper6.3No—Web
18Scribbr Plagiarism Checker6.2No—Web
19MOSS5.8No—Web, Linux
20Plagramme5.8No—Web
21Red Paper5.8No—Web
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Questions about DupliChecker alternatives

What is the best alternative to DupliChecker?

Noplag, number 1 in plagiarism checkers with a score of 7.3 out of 10. The others here: Dolos, PlagAware, PrePostSEO Plagiarism Checker and 16 more.

What is the best free alternative to DupliChecker?

Noplag is the best-ranked alternative with a free plan. 9 of the 20 alternatives here publish a free plan on their own pricing pages.

How are these alternatives ranked?

Ranked on what each maker publishes: documentation depth, a free tier and the platforms it runs on.