Best Plagiarism Checkers in 2026
Updated
31ranked
0free plans on this page
11 Oct 2026last checked
Input list Plagiarism Checkers 6 channels on this page · 24 of 48 spec lines stated by the makers
Ch Tool Free planPaid fromWeb source matchingAcademic source matchingSupported languagesWord limitReport export formatsAPI access Spec sheet Score
26 Scribbr Plagiarism Checker Free planYesPaid fromWeb source matchingYesAcademic source matchingYesSupported languages20 languagesWord limitReport export formatsPDFAPI access 5/8spec lines stated 6.5
27 Viper Free planNoPaid fromWeb source matchingAcademic source matchingSupported languagesWord limitReport export formatsAPI accessYes 2/8spec lines stated 6.4
28 iThenticate Free planNoPaid fromWeb source matchingYesAcademic source matchingYesSupported languagesWord limitReport export formatsPDFAPI accessYes 5/8spec lines stated 6.3
29 Plagiat.pl Free planNoPaid fromWeb source matchingYesAcademic source matchingYesSupported languagesWord limitReport export formatsAPI access 3/8spec lines stated 6.3
30 Turnitin AI Writing Detection Free planNoPaid fromWeb source matchingYesAcademic source matchingYesSupported languagesWord limitReport export formatsPDFAPI accessYes 5/8spec lines stated 6.3
31 Red Paper Free planPaid fromWeb source matchingYesAcademic source matchingYesSupported languagesWord limitReport export formatsPDFAPI accessYes 4/8spec lines stated 6.0
Compare all 6 in a table
| # | Tool | Score | Free plan | Paid from | Web source matching | Academic source matching |
|---|---|---|---|---|---|---|
| 26 | Scribbr Plagiarism Checker | 6.5 | Yes | Yes | Yes | |
| 27 | Viper | 6.4 | No | |||
| 28 | iThenticate | 6.3 | No | Yes | Yes | |
| 29 | Plagiat.pl | 6.3 | No | Yes | Yes | |
| 30 | Turnitin AI Writing Detection | 6.3 | No | Yes | Yes | |
| 31 | Red Paper | 6.0 | Yes | Yes |