Best Plagiarism Detector Alternatives in 2026
Updated
20 platforms from plagiarism checkers ranked against Plagiarism Detector on the same published basis.
- 1Plagiarism Detector vs Noplag
- 2Plagiarism Detector vs PlagAware
- 4Plagiarism Detector vs Copyscape
- 5Plagiarism Detector vs Compilatio AI Detector
- 6Plagiarism Detector vs Quetext AI Detector
- 7Plagiarism Detector vs SmallSEOTools Plagiarism Checker
- 8Plagiarism Detector vs Copyleaks AI Detector
- 9Plagiarism Detector vs Crossref Similarity Check
- 10Plagiarism Detector vs Originality.ai
- 11Plagiarism Detector vs Plagiarism Checker X
- 12Plagiarism Detector vs PlagiarismSearch
- 13Plagiarism Detector vs Plagius
- 14Plagiarism Detector vs Dolos
- 15Plagiarism Detector vs Plagiarisma
- 16Plagiarism Detector vs PrePostSEO Plagiarism Checker
- 17Plagiarism Detector vs MOSS
- 18Plagiarism Detector vs StrikePlagiarism
- 19Plagiarism Detector vs Smodin Plagiarism Checker
- 20Plagiarism Detector vs DrillBit
- 21Plagiarism Detector vs Plag
Plagiarism Detector alternatives compared
| # | Platform | Score | Free plan | From | Runs on |
|---|---|---|---|---|---|
| 1 | Noplag | 8.0 | Free plan | $9.99/mo | API, Linux, Mac, self-hosted, Web, Windows |
| 2 | PlagAware | 7.7 | Free plan | €2.99/mo | API, Web |
| 4 | Copyscape | 7.6 | Free plan | $4.95/mo | API, self-hosted, Web |
| 5 | Compilatio AI Detector | 7.1 | API, Web | ||
| 6 | Quetext AI Detector | 7.1 | Free plan | $7.99/mo | API, Browser, Web |
| 7 | SmallSEOTools Plagiarism Checker | 7.1 | Free plan | $7.84/mo | API, Browser, Web |
| 8 | Copyleaks AI Detector | 7.0 | $1.17/mo | API, Browser, Web | |
| 9 | Crossref Similarity Check | 7.0 | $3.33/mo | API, Web | |
| 10 | Originality.ai | 7.0 | Free plan | $12.95/mo | API, Browser, Web |
| 11 | Plagiarism Checker X | 7.0 | Free plan | Free | Windows |
| 12 | PlagiarismSearch | 7.0 | $27.95/mo | API, Browser, Web | |
| 13 | Plagius | 7.0 | No | $4.90/mo | Mac, Web, Windows |
| 14 | Dolos | 6.9 | Free plan | Free | API, Linux, self-hosted, Web, Windows |
| 15 | Plagiarisma | 6.9 | Free plan | Free | Web, Windows |
| 16 | PrePostSEO Plagiarism Checker | 6.9 | $0.35/mo | Android, API, iOS, Mac, Web, Windows | |
| 17 | MOSS | 6.8 | Free plan | Free | Linux, Web |
| 18 | StrikePlagiarism | 6.7 | No | API, self-hosted, Web | |
| 19 | Smodin Plagiarism Checker | 6.6 | $10/mo | Android, API, Browser, iOS, Web | |
| 20 | DrillBit | 6.4 | No | Android, API, iOS, Web | |
| 21 | Plag | 6.4 | €14.95/mo | Web |
Make your platform an alternative to Plagiarism Detector
See the priceThe sponsored alternative slot on this page is labelled Sponsored.
Questions about Plagiarism Detector alternatives
What is the best alternative to Plagiarism Detector?
Noplag, number 1 in plagiarism checkers with a score of 8.0 out of 10. The others here: PlagAware, Copyscape, Compilatio AI Detector and 16 more.
What is the best free alternative to Plagiarism Detector?
Noplag is the best-ranked alternative with a free plan. 10 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.