1 PaperFree: PaperFree is an old-fashioned paper duplicate checking website, providing free duplicate checking, intelligent weight reduction and other services.
2papertime: the first free duplicate check, providing users with good duplicate check and paper detection services. The software has a huge contrast database covering more than ten document types, which has strong security and confidentiality in duplicate checking process and high accuracy of detection results.
HowNet: HowNet is the most authoritative database in China. It cooperates with 80% universities in China, but does not accept individual duplicate checking.
4 VIP: The number of documents in VIP database is second only to HowNet, and its duplicate checking results have strong reference.
50,000 square meters: Wanfang is characterized by excellent document data collection and very fast duplicate checking speed.
Generally speaking, the choice of paper duplicate checking software mainly depends on your needs and budget. If more accurate duplicate checking results are needed and the budget is high, you can choose some well-known duplicate checking software such as Wanfang, VIP or China Knowledge Network. If you need a more affordable price, you can choose a paper duplicate checking software with a relatively low price, such as paperfree.