1.Turnitin: Turnitin is the world's leading testing tool for academic integrity and originality, which is widely used in academia and educational institutions. It can detect similarities in texts and provide detailed reports and suggestions.
2.Grammarly: Grammarly is a widely used online grammar and spelling checking tool, which can also be used to detect plagiarism in papers. It provides real-time grammar and spelling correction functions, and can be integrated with commonly used editing software such as MicrosoftWord.
3.Copyscape: Copyscape is a tool specially used to detect the repetition rate of web content, and it can also be used to detect plagiarism in papers. It can search web pages on the Internet and display results similar to the given text.
4.Plagscan: Plagscan is a professional paper duplicate checking software, which is widely used in academic circles and educational institutions. It can detect similarities in texts and provide detailed reports and suggestions.
5.Viper:Viper is a free paper duplicate checking software, which can detect the similarity between texts and provide detailed reports and suggestions. It supports a variety of file formats, including Word, PDF and Web pages.
These paper duplicate checking softwares all have their own characteristics and advantages, so you can choose the software that suits you according to your personal needs. No matter what kind of software you use, you should pay attention to academic integrity, abide by academic norms, and avoid plagiarism and repetition.