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 similar contents in papers and provide detailed reports and citation analysis.
2.Grammarly: Grammarly is a popular 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 common document editing software such as MicrosoftWord.
3.Copyscape: Copyscape is a tool specially used to detect the duplication of web pages, and it can also be used to detect plagiarism in papers. It can scan the web pages on the Internet, find out the texts of similar papers and provide detailed reports.
4.Plagscan: Plagscan is a professional paper duplicate checking software, which is widely used in academic circles and research institutions. It can detect similar contents in papers and provide detailed reports and citation analysis.
5.Viper:Viper is a free paper duplicate checking software, which can detect similar contents in papers and provide detailed reports. It supports a variety of file formats, including Word, PDF and HTML.
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 which software you choose, you should pay attention to protecting academic integrity and avoiding plagiarism.