HowNet needs to pay for duplicate checking, but some schools or institutions may offer free duplicate checking discounts. For example, colleges and universities cooperate with HowNet to provide 1-2 free duplicate checking opportunities. In addition, HowNet also provides a free trial account, which can be used for duplicate checking. These accounts are usually limited, for example, they can only be used once or can only upload documents smaller than a certain size.

It should be noted that the results of any duplicate checking system are not absolutely accurate, because the system may be affected by some factors, such as the limited contents in the database and the differences in detection algorithms.

For the first draft of the paper, it is suggested to use paperfree and papertime official website free duplicate checking websites for testing, and for the final draft, use the duplicate checking system required by the school to ensure that the paper meets academic requirements.

[Paper Time] A reliable paper duplicate checking platform can support HowNet, VIP, Wanfang, PaperFree,? Mainstream systems such as PaperPass check duplicates, all of which are authentic in official website, and also support online marking and free paper typesetting.

Therefore, when using duplicate checking, we should choose a reliable duplicate checking system, and combine the duplicate checking results with manual review and revision to ensure the quality and academic integrity of the paper.