HowNet can check duplicate, and its duplicate checking system is specially designed for academic papers, which can detect plagiarism in papers with very high accuracy. HowNet duplicate checking system covers a large number of databases and can be updated in time, which can effectively detect the similarity of papers.

Different paper duplicate checking systems use different databases and algorithms, so the duplicate checking results may be different. In addition to HowNet, common duplicate checking systems include VIP, paperfree, papertime and so on. If the school stipulates to use HowNet to check the duplicate, the result of HowNet's duplicate check shall prevail. In order to ensure the accuracy and reliability of paper duplicate checking, it is suggested that before using any duplicate checking website, we should first understand the duplicate checking principle and database scope of the website, so as to better understand the duplicate checking results.