Best PlagiarismDetector.net Alternatives in 2026
Updated
20 platforms from plagiarism detection software ranked against PlagiarismDetector.net on the same published basis.
- 1PlagiarismDetector.net vs GPTZero
- 2PlagiarismDetector.net vs Copyscape
- 3PlagiarismDetector.net vs Noplag
- 4PlagiarismDetector.net vs Noplag Engine
- 5PlagiarismDetector.net vs Originality.ai
- 6PlagiarismDetector.net vs Pangram
- 7PlagiarismDetector.net vs Quetext AI Detector
- 8PlagiarismDetector.net vs SmallSEOTools Plagiarism Checker
- 9PlagiarismDetector.net vs Winston AI
- 10PlagiarismDetector.net vs Dolos
- 11PlagiarismDetector.net vs JPlag
- 12PlagiarismDetector.net vs Copyleaks AI Detector
- 13PlagiarismDetector.net vs PlagiarismCheck.org
- 14PlagiarismDetector.net vs Codeleaks
- 15PlagiarismDetector.net vs DupliChecker
- 17PlagiarismDetector.net vs Codequiry
- 18PlagiarismDetector.net vs WINNOWR
- 19PlagiarismDetector.net vs Plagium
- 20PlagiarismDetector.net vs Plagiarisma
- 21PlagiarismDetector.net vs Plag.ai
PlagiarismDetector.net 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 | No | $1.17/mo | API, Browser, Web |
| 13 | PlagiarismCheck.org | 6.9 | No | — | API, Browser, Web |
| 14 | Codeleaks | 6.8 | No | — | API, self-hosted, Web |
| 15 | DupliChecker | 6.8 | No | $9.99/mo | API, Web |
| 17 | Codequiry | 6.7 | No | €25.76/mo | API, Linux, Mac, Web, Windows |
| 18 | WINNOWR | 6.7 | No | — | API, Linux, self-hosted, Web |
| 19 | Plagium | 5.9 | Free plan | Free | Android, iOS, Web |
| 20 | Plagiarisma | 5.8 | Free plan | Free | Web, Windows |
| 21 | Plag.ai | 5.5 | No | €14.95/mo | Web |
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Questions about PlagiarismDetector.net alternatives
What is the best alternative to PlagiarismDetector.net?
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 PlagiarismDetector.net?
GPTZero is the best-ranked alternative with a free plan. 13 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.