Common paper duplicate checking systems include HowNet, VIP, PaperFree, Papertime, paperday, etc. These websites provide services such as duplicate checking, weight reduction and online revision of papers, which can help graduates complete their thesis writing and testing.
It should be noted that the prices, algorithms and databases of different duplicate checking websites are different, so the duplicate checking results will be different. It is necessary to choose a suitable website to use according to personal needs and actual conditions to ensure that the repetition rate and quality of the paper meet the requirements.