1.Turnitin: Turnitin is one of the largest platforms in the world to test academic integrity and originality, and is widely used in academic circles and educational institutions. It can detect similar contents in papers and provide detailed similarity reports and citation sources.
2.Grammarly: Grammarly is a powerful grammar and spelling checking tool, and it also has the function of double checking. It can detect similar content in papers and provide detailed similarity report and suggested modification scheme.
3.Copyscape: Copyscape is a tool specially used to detect the repetition rate of web content, and can also be used to detect the similarity of papers. It can detect similar contents in papers and provide detailed similarity reports and citation sources.
4.Plagscan: Plagscan is a professional duplicate checking software, which is widely used in academic circles and research institutions. It can detect similar contents in papers and provide detailed similarity reports and citation sources.
5.Viper:Viper is a free paper duplicate checking software, which can detect similar contents in papers and provide detailed similarity reports and citation sources. Although its database is relatively small, it is enough for general academic papers to check again.
The above are some reliable and safe paper duplicate checking software, all of which have high accuracy and reliability. When choosing paper duplicate checking software, you can choose according to your own needs and budget. At the same time, we should also pay attention to protecting personal privacy and copyright and abide by the principle of academic integrity.