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一、Introduction

Academic writing is an essential skill for students and scholars. However, plagiarism is a major issue that can have serious consequences. To avoid plagiarism, students and scholars use various tools and software to check their papers for similarity. In this article, we will discuss the top 4 plagiarism checkers for 2021.

二、Turnitin

Turnitin is one of the most popular plagiarism checkers used in universities and colleges worldwide. It is an online platform that checks for similarity in academic papers, essays, and other written work. Turnitin compares the submitted file with its vast database of academic papers, journals, and publications. It provides a similarity score and highlights the areas where the similarity is found. Turnitin also offers a grammar checker and feedback on the paper's overall quality.

三、Grammarly

Grammarly is another popular tool used by students and scholars to check for plagiarism. It is a writing assistant that checks for grammar, punctuation, and spelling errors. Grammarly also checks for plagiarism by comparing the submitted paper with its vast database of academic papers and publications. It provides a detailed report on the paper's overall quality, including suggestions for improving the content, structure, and style.

四、Copyscape

Copyscape is a plagiarism checker that is widely used by bloggers, content creators, and website owners. It checks for plagiarism by comparing the submitted content with its vast database of web pages and online publications. Copyscape provides a detailed report on the content's originality, including the percentage of similarity and the sources where the similarity is found. It also offers a plagiarism warning banner that can be placed on the website to deter potential plagiarists.

五、Plagiarism Checker X

Plagiarism Checker X is a comprehensive plagiarism checker that compares the submitted content with its vast database of online publications, academic journals, and other sources. It provides a detailed report on the content's originality, including the percentage of similarity and the sources where the similarity is found. Plagiarism Checker X also offers a side-by-side comparison of the submitted content and the sources where the similarity is found, making it easier for users to identify the copied content.

六、Conclusion

In conclusion, plagiarism is a serious issue that can have severe consequences. To avoid plagiarism, students and scholars use various tools and software to check their papers for similarity. The top 4 plagiarism checkers for 2021 are Turnitin, Grammarly, Copyscape, and Plagiarism Checker X. These tools provide detailed reports on the content's originality, including the percentage of similarity and the sources where the similarity is found. By using these plagiarism checkers, students and scholars can ensure that their papers are original and of high quality.