1 China hownet. China Knowledge Network is the most authoritative paper duplicate checking software in China, with comprehensive database and huge resources. It is suitable to use CNKI pmlc paper duplicate checking system to detect undergraduate papers, and CNKI VIP5.3 paper duplicate checking system to detect graduate papers.

20,000 square test and VIP network test. These two papers are also used in some schools, and they are also the mainstream paper duplicate checking software in China except HowNet. The detection is not as strict as HowNet, but the detection speed is faster, the charging price is cheaper than HowNet, and the duplicate checking result is more accurate, which is also recognized by some schools.

3 Repeated inspection without paper. This is a software that provides proper and effective duplicate checking service for people who need duplicate checking of papers. Cost-effective, the price is very close to the people, the first duplicate check is free, if you can get online duplicate check for free when you participate in official website activities. It is a great benefit for college graduates, and its quality and safety are relatively high.

Generally speaking, it is necessary to consider personal needs and actual situation when choosing which platform to check duplicate papers, so as to ensure that the papers meet academic requirements.