Best Turnitin Originality Alternatives in 2026
Updated
20 platforms from plagiarism detection software ranked against Turnitin Originality on the same published basis.
- 1Turnitin Originality vs GPTZero
- 2Turnitin Originality vs Copyscape
- 3Turnitin Originality vs Noplag
- 4Turnitin Originality vs Noplag Engine
- 5Turnitin Originality vs Originality.ai
- 6Turnitin Originality vs Pangram
- 7Turnitin Originality vs Quetext AI Detector
- 8Turnitin Originality vs SmallSEOTools Plagiarism Checker
- 9Turnitin Originality vs Winston AI
- 10Turnitin Originality vs Dolos
- 11Turnitin Originality vs JPlag
- 12Turnitin Originality vs Copyleaks AI Detector
- 13Turnitin Originality vs PlagiarismCheck.org
- 14Turnitin Originality vs WINNOWR
- 15Turnitin Originality vs Codeleaks
- 16Turnitin Originality vs DrillBit
- 17Turnitin Originality vs DupliChecker
- 18Turnitin Originality vs PlagiarismDetector.net
- 19Turnitin Originality vs Codequiry
- 20Turnitin Originality vs iThenticate
Turnitin Originality alternatives compared
| # | Platform | Score | Free plan | From | Runs on |
|---|---|---|---|---|---|
| 1 | GPTZero | 7.4 | Free plan | $8.33/mo | API, Browser, Web |
| 2 | Copyscape | 7.3 | Free plan | $4.95/mo | API, self-hosted, Web |
| 3 | Noplag | 7.3 | Free plan | $9.99/mo | API, Linux, Mac, self-hosted, Web, Windows |
| 4 | Noplag Engine | 7.3 | Free plan | $9.99/mo | API, Linux, Mac, self-hosted, Web, Windows |
| 5 | Originality.ai | 7.3 | Free plan | $12.95/mo | API, Browser, Web |
| 6 | Pangram | 7.3 | Free plan | $1.67/mo | API, Browser, Web |
| 7 | Quetext AI Detector | 7.3 | Free plan | $7.99/mo | API, Browser, Web |
| 8 | SmallSEOTools Plagiarism Checker | 7.3 | Free plan | $7.84/mo | API, Browser, Web |
| 9 | Winston AI | 7.3 | Free plan | $5/mo | API, Browser, Web |
| 10 | Dolos | 7.2 | Free plan | Free | API, Linux, self-hosted, Web, Windows |
| 11 | JPlag | 7.2 | Free plan | Free | API, Linux, Mac, self-hosted, Windows |
| 12 | Copyleaks AI Detector | 7.0 | $1.17/mo | API, Browser, Web | |
| 13 | PlagiarismCheck.org | 6.9 | API, Browser, Web | ||
| 14 | WINNOWR | 6.9 | API, Linux, self-hosted, Web | ||
| 15 | Codeleaks | 6.8 | API, self-hosted, Web | ||
| 16 | DrillBit | 6.8 | No | Android, API, iOS, Web | |
| 17 | DupliChecker | 6.8 | $9.99/mo | API, Web | |
| 18 | PlagiarismDetector.net | 6.8 | $9.99/mo | API, Browser, Web | |
| 19 | Codequiry | 6.7 | No | €25.76/mo | API, Linux, Mac, Web, Windows |
| 20 | iThenticate | 6.7 | No | API, Web |
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Questions about Turnitin Originality alternatives
What is the best alternative to Turnitin Originality?
GPTZero, number 1 in plagiarism detection software with a score of 7.4 out of 10. The others here: Copyscape, Noplag, Noplag Engine and 16 more.
What is the best free alternative to Turnitin Originality?
GPTZero is the best-ranked alternative with a free plan. 11 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, open and connectable first: a public API, open-source code, the depth of its documentation and a free tier to try it on. Model lists are sorted by the figure in their title, exactly as each provider publishes it.