School libraries or academic institutions: Many schools and academic institutions provide free duplicate checking services for papers, and usually use mainstream duplicate checking systems such as HowNet, VIP and Wanfang. Students can go to the school library or the website of academic institutions for online duplicate checking or submit papers offline for duplicate checking.
Academic search engine: Many academic websites and platforms can be searched through search engines, and these websites and platforms usually provide free paper duplicate checking services. For example, Baidu Academic, Google Academic.
Third-party paper duplicate checking websites: Many third-party paper duplicate checking websites provide online paper duplicate checking services, and users can upload their own papers on these websites and pay a certain duplicate checking fee. Well-known duplicate checking software such as paperfree, papertime and paperday.
E-commerce platform: On the e-commerce platform, there are also many sellers who provide paper duplicate checking services, and users can purchase corresponding services for duplicate checking. It should be noted that when choosing sellers on the e-commerce platform, it is necessary to choose sellers with good reputation to ensure the security and accuracy of the paper.
It should be pointed out that personal privacy and paper safety should be protected when duplicate checking is carried out. At the same time, we should pay attention to the choice of formal and reliable duplicate checking methods and systems to avoid leakage or misappropriation of papers.