Freedom251
For vendors
AdvertiseTop spots, featured rows, home sponsor Get listedAdd a product we don't cover yet Claim a listingFree: verify the domain, then correct your page Vendor dashboardNumbers, orders and placements
Vendor dashboard

Best Turnitin AI Writing Detection Alternatives in 2026

Updated

20 apps from plagiarism checkers ranked against Turnitin AI Writing Detection on the same published basis.

  1. 1
    Noplag Free plan apiLinuxMacself-hostedWeb $9.99/mo6.7
    Turnitin AI Writing Detection vs Noplag
  2. 2
    Dolos Free plan apiLinuxself-hostedWebWin Free6.5
    Turnitin AI Writing Detection vs Dolos
  3. 3
    Plagiarism Detector Free plan WebWin Free6.5
    Turnitin AI Writing Detection vs Plagiarism Detector
  4. 4
    Copyscape Free plan apiself-hostedWeb $4.95/mo6.4
    Turnitin AI Writing Detection vs Copyscape
  5. 5
    Crossref Similarity Check apiWeb $3.33/mo6.4
    Turnitin AI Writing Detection vs Crossref Similarity Check
  6. 6
    MOSS Free plan LinuxWeb Free6.4
    Turnitin AI Writing Detection vs MOSS
  7. 7
    Originality.ai Free plan apiextensionWeb $12.95/mo6.4
    Turnitin AI Writing Detection vs Originality.ai
  8. 8
    PlagAware Free plan apiWeb €2.99/mo6.4
    Turnitin AI Writing Detection vs PlagAware
  9. 9
    Plagiarism Checker X Free plan Win Free6.4
    Turnitin AI Writing Detection vs Plagiarism Checker X
  10. 10
    Plagiarisma Free plan WebWin Free6.4
    Turnitin AI Writing Detection vs Plagiarisma
  11. 11
    Quetext AI Detector Free plan apiextensionWeb $7.99/mo6.4
    Turnitin AI Writing Detection vs Quetext AI Detector
  12. 12
    SmallSEOTools Plagiarism Checker Free plan apiextensionWeb $7.84/mo6.4
    Turnitin AI Writing Detection vs SmallSEOTools Plagiarism Checker
  13. 13
    JPlag Free plan apiLinuxself-hosted Free6.3
    Turnitin AI Writing Detection vs JPlag
  14. 14
    PrePostSEO Plagiarism Checker AndroidapiiOSMacWeb $0.35/mo5.8
    Turnitin AI Writing Detection vs PrePostSEO Plagiarism Checker
  15. 15
    Smodin Plagiarism Checker AndroidapiextensioniOSWeb $10/mo5.6
    Turnitin AI Writing Detection vs Smodin Plagiarism Checker
  16. 16
    Compilatio AI Detector Free trial apiWeb 5.5
    Turnitin AI Writing Detection vs Compilatio AI Detector
  17. 17
    Copyleaks AI Detector Free trial apiextensionWeb $1.17/mo5.5
    Turnitin AI Writing Detection vs Copyleaks AI Detector
  18. 18
    DupliChecker apiWeb $9.99/mo5.4
    Turnitin AI Writing Detection vs DupliChecker
  19. 19
    Plag Web €14.95/mo5.4
    Turnitin AI Writing Detection vs Plag
  20. 20
    PlagiarismCheck.org apiextensionWeb 5.4
    Turnitin AI Writing Detection vs PlagiarismCheck.org

Turnitin AI Writing Detection alternatives compared

#AppScoreFree planFromRuns on
1Noplag6.7Free plan$9.99/moAPI, Linux, Mac, self-hosted, Web, Windows
2Dolos6.5Free planFreeAPI, Linux, self-hosted, Web, Windows
3Plagiarism Detector6.5Free planFreeWeb, Windows
4Copyscape6.4Free plan$4.95/moAPI, self-hosted, Web
5Crossref Similarity Check6.4$3.33/moAPI, Web
6MOSS6.4Free planFreeLinux, Web
7Originality.ai6.4Free plan$12.95/moAPI, Browser, Web
8PlagAware6.4Free plan€2.99/moAPI, Web
9Plagiarism Checker X6.4Free planFreeWindows
10Plagiarisma6.4Free planFreeWeb, Windows
11Quetext AI Detector6.4Free plan$7.99/moAPI, Browser, Web
12SmallSEOTools Plagiarism Checker6.4Free plan$7.84/moAPI, Browser, Web
13JPlag6.3Free planFreeAPI, Linux, self-hosted
14PrePostSEO Plagiarism Checker5.8$0.35/moAndroid, API, iOS, Mac, Web, Windows
15Smodin Plagiarism Checker5.6$10/moAndroid, API, Browser, iOS, Web
16Compilatio AI Detector5.5API, Web
17Copyleaks AI Detector5.5$1.17/moAPI, Browser, Web
18DupliChecker5.4$9.99/moAPI, Web
19Plag5.4€14.95/moWeb
20PlagiarismCheck.org5.4API, Browser, Web
Make your app an alternative to Turnitin AI Writing Detection

The sponsored alternative slot on this page is labelled Sponsored.

See the price

Questions about Turnitin AI Writing Detection alternatives

What is the best alternative to Turnitin AI Writing Detection?

Noplag, number 1 in plagiarism checkers with a score of 6.7 out of 10. The others here: Dolos, Plagiarism Detector, Copyscape and 16 more.

What is the best free alternative to Turnitin AI Writing Detection?

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