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Best PrePostSEO Plagiarism Checker Alternatives in 2026

Updated

20 platforms from plagiarism checkers ranked against PrePostSEO Plagiarism Checker on the same published basis.

  1. 1
    Noplag Free plan apiLinuxMacself-hostedWeb $9.99/mo8.0
    PrePostSEO Plagiarism Checker vs Noplag
  2. 2
    PlagAware Free plan apiWeb €2.99/mo7.7
    PrePostSEO Plagiarism Checker vs PlagAware
  3. 3
    Plagiarism Detector Free plan WebWin Free7.7
    PrePostSEO Plagiarism Checker vs Plagiarism Detector
  4. 4
    Copyscape Free plan apiself-hostedWeb $4.95/mo7.6
    PrePostSEO Plagiarism Checker vs Copyscape
  5. 5
    Compilatio AI Detector Free trial apiWeb 7.1
    PrePostSEO Plagiarism Checker vs Compilatio AI Detector
  6. 6
    Quetext AI Detector Free plan apiextensionWeb $7.99/mo7.1
    PrePostSEO Plagiarism Checker vs Quetext AI Detector
  7. 7
    SmallSEOTools Plagiarism Checker Free plan apiextensionWeb $7.84/mo7.1
    PrePostSEO Plagiarism Checker vs SmallSEOTools Plagiarism Checker
  8. 8
    Copyleaks AI Detector Free trial apiextensionWeb $1.17/mo7.0
    PrePostSEO Plagiarism Checker vs Copyleaks AI Detector
  9. 9
    Crossref Similarity Check apiWeb $3.33/mo7.0
    PrePostSEO Plagiarism Checker vs Crossref Similarity Check
  10. 10
    Originality.ai Free plan apiextensionWeb $12.95/mo7.0
    PrePostSEO Plagiarism Checker vs Originality.ai
  11. 11
    Plagiarism Checker X Free plan Win Free7.0
    PrePostSEO Plagiarism Checker vs Plagiarism Checker X
  12. 12
    PlagiarismSearch Free trial apiextensionWeb $27.95/mo7.0
    PrePostSEO Plagiarism Checker vs PlagiarismSearch
  13. 13
    Plagius Free trial MacWebWin $4.90/mo7.0
    PrePostSEO Plagiarism Checker vs Plagius
  14. 14
    Dolos Free plan apiLinuxself-hostedWebWin Free6.9
    PrePostSEO Plagiarism Checker vs Dolos
  15. 15
    Plagiarisma Free plan WebWin Free6.9
    PrePostSEO Plagiarism Checker vs Plagiarisma
  16. 17
    MOSS Free plan LinuxWeb Free6.8
    PrePostSEO Plagiarism Checker vs MOSS
  17. 18
    JPlag Free plan apiLinuxself-hosted Free6.7
    PrePostSEO Plagiarism Checker vs JPlag
  18. 19
    StrikePlagiarism Free trial apiself-hostedWeb 6.7
    PrePostSEO Plagiarism Checker vs StrikePlagiarism
  19. 20
    Smodin Plagiarism Checker AndroidapiextensioniOSWeb $10/mo6.6
    PrePostSEO Plagiarism Checker vs Smodin Plagiarism Checker
  20. 21
    DrillBit AndroidapiiOSWeb 6.4
    PrePostSEO Plagiarism Checker vs DrillBit

PrePostSEO Plagiarism Checker alternatives compared

#PlatformScoreFree planFromRuns on
1Noplag8.0Free plan$9.99/moAPI, Linux, Mac, self-hosted, Web, Windows
2PlagAware7.7Free plan€2.99/moAPI, Web
3Plagiarism Detector7.7Free planFreeWeb, Windows
4Copyscape7.6Free plan$4.95/moAPI, self-hosted, Web
5Compilatio AI Detector7.1API, Web
6Quetext AI Detector7.1Free plan$7.99/moAPI, Browser, Web
7SmallSEOTools Plagiarism Checker7.1Free plan$7.84/moAPI, Browser, Web
8Copyleaks AI Detector7.0$1.17/moAPI, Browser, Web
9Crossref Similarity Check7.0$3.33/moAPI, Web
10Originality.ai7.0Free plan$12.95/moAPI, Browser, Web
11Plagiarism Checker X7.0Free planFreeWindows
12PlagiarismSearch7.0$27.95/moAPI, Browser, Web
13Plagius7.0No$4.90/moMac, Web, Windows
14Dolos6.9Free planFreeAPI, Linux, self-hosted, Web, Windows
15Plagiarisma6.9Free planFreeWeb, Windows
17MOSS6.8Free planFreeLinux, Web
18JPlag6.7Free planFreeAPI, Linux, self-hosted
19StrikePlagiarism6.7NoAPI, self-hosted, Web
20Smodin Plagiarism Checker6.6$10/moAndroid, API, Browser, iOS, Web
21DrillBit6.4NoAndroid, API, iOS, Web
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Questions about PrePostSEO Plagiarism Checker alternatives

What is the best alternative to PrePostSEO Plagiarism Checker?

Noplag, number 1 in plagiarism checkers with a score of 8.0 out of 10. The others here: PlagAware, Plagiarism Detector, Copyscape and 16 more.

What is the best free alternative to PrePostSEO Plagiarism Checker?

Noplag is the best-ranked alternative with a free plan. 12 of the 20 alternatives here publish a free plan on their own pricing pages.

How are these alternatives ranked?

Ranked on how quickly a newcomer can get going: documentation depth, a free tier or trial, and the platforms it runs on.