The following tables compare software used for plagiarism detection.
Software | Developer | First public release | Latest stable version | License | Deployment options | Scripts supported | Notes |
---|---|---|---|---|---|---|---|
Copyscape | Indigo Stream Technologies, Ltd. | 2004 | freemium [1] | SaaS | Latin | Targeted at website managers. [2] | |
Copyleaks | 2015 | [3] | |||||
Grammarly | Grammarly, Inc. | 2016 | freemium | SaaS | Latin | Checks against ProQuest databases and (public) web pages. [4] | |
HelioBLAST | Virginia Bioinformatics Institute | ? | (free of charge web service) | Latin | Submissions are limited to 1,000 words. Checking against abstract and titles in Medline/PubMed. [5] | ||
iThenticate | iParadigms | 2004 | 2017 | proprietary | SaaS | Latin | |
PlagScan | PlagScan GmbH | 2008 | limited | SaaS, On-Premises [6] | Latin, Cyrillic & Arabic [7] [8] | Submissions are checked against (public) online documents, a (private) shared repository, and the user's own (private) repository. [9] | |
PlagTracker | Devellar | 2011 | freemium | SaaS | Latin, Cyrillic | Rated as "Useless for academic purposes" by Plagiats Portal [10] | |
Turnitin | iParadigms | 1997 | proprietary | SaaS | Latin & multiple scripts through translation [11] | Automatically stores uploaded texts (submitted for checking) in its own database. [12] | |
Unicheck | Unicheck | 2014 | SaaS | proprietary | SaaS | Latin, Cyrillic | Pricing "per page" based on 137.5 words per nominal page. [13] |