Best Turnitin Originality Alternatives in 2026
Updated
20 apps from AI plagiarism checkers ranked against Turnitin Originality on the same published basis.
- 1Turnitin Originality vs Plagium
- 2Turnitin Originality vs PrePostSEO Plagiarism Checker
- 3Turnitin Originality vs Check-Plagiarism
- 4Turnitin Originality vs Noplag
- 6Turnitin Originality vs PlagAware
- 7Turnitin Originality vs Turnitin Similarity
- 8Turnitin Originality vs PlagiarismCheck.org
- 9Turnitin Originality vs PlagiarismSearch
- 10Turnitin Originality vs Plagiarisma
- 11Turnitin Originality vs StrikePlagiarism
- 12Turnitin Originality vs PlagiarismDetector.net
- 13Turnitin Originality vs DrillBit
- 14Turnitin Originality vs Viper
- 15Turnitin Originality vs iThenticate
- 16Turnitin Originality vs SmallSEOTools Plagiarism Checker
- 17Turnitin Originality vs DupliChecker
- 18Turnitin Originality vs Proofademic
- 19Turnitin Originality vs PlagPointer
- 20Turnitin Originality vs Scribbr Plagiarism Checker
- 21Turnitin Originality vs Plagiarism Checker X
Turnitin Originality alternatives compared
| # | App | Score | Free plan | From | Runs on |
|---|---|---|---|---|---|
| 1 | Plagium | 8.7 | Free plan | Free | Android, iOS, Web |
| 2 | PrePostSEO Plagiarism Checker | 7.8 | No | $0.35/mo | Android, API, iOS, Mac, Web, Windows |
| 3 | Check-Plagiarism | 7.8 | No | $4.17/mo | Android, API, Web |
| 4 | Noplag | 7.6 | Free plan | $9.99/mo | API, Linux, Mac, self-hosted, Web, Windows |
| 6 | PlagAware | 7.4 | Free plan | €2.99/mo | API, Web |
| 7 | Turnitin Similarity | 7.3 | No | — | API, Web |
| 8 | PlagiarismCheck.org | 7.2 | No | — | API, Browser, Web |
| 9 | PlagiarismSearch | 7.0 | No | $27.95/mo | API, Browser, Web |
| 10 | Plagiarisma | 7.0 | Free plan | Free | Web, Windows |
| 11 | StrikePlagiarism | 6.8 | No | — | Web |
| 12 | PlagiarismDetector.net | 6.8 | No | $9.99/mo | API, Browser, Web |
| 13 | DrillBit | 6.5 | No | — | Web |
| 14 | Viper | 6.4 | No | — | Web |
| 15 | iThenticate | 6.3 | No | — | Web |
| 16 | SmallSEOTools Plagiarism Checker | 6.3 | Free plan | $7.84/mo | API, Browser, Web |
| 17 | DupliChecker | 6.0 | No | $9.99/mo | API, Web |
| 18 | Proofademic | 6.0 | Free plan | $15/mo | API, Web |
| 19 | PlagPointer | 5.8 | No | — | Web |
| 20 | Scribbr Plagiarism Checker | 5.4 | No | — | Web |
| 21 | Plagiarism Checker X | 5.3 | No | — | Windows |
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Questions about Turnitin Originality alternatives
What is the best alternative to Turnitin Originality?
Plagium, number 1 in AI plagiarism checkers with a score of 8.7 out of 10. The others here: PrePostSEO Plagiarism Checker, Check-Plagiarism, Noplag and 16 more.
What is the best free alternative to Turnitin Originality?
Plagium is the best-ranked alternative with a free plan. 6 of the 20 alternatives here publish a free plan on their own pricing pages.
How are these alternatives ranked?
Ranked mobile-first: a phone app alongside the web or desktop product, a free tier and the depth of its documentation.