What languages does the plagiarism checker support?

Viper's plagiarism checker, powered by Copyleaks technology, can scan text in more than 100 languages. This includes widely used languages such as English, Spanish, French, Portuguese, Arabic, Russian, German, Greek, Chinese, and Japanese, as well as many others.

Please note that scans are performed in the same language as the text you submit. For example, if you upload a Spanish document, the system only checks for similarities within Spanish sources.

If you want to compare content across languages, you can use the cross-language detection feature. You can read more about it on our Cross-Language Detection page.