Scribbr - Scribbr is an online proofreading and editing service used for the academic activities of the students.
Turnitin - Turnitin is preferred by educational institutions around the world for preventing plagiarism. Instructors at all levels of education can request that students use the service to submit papers, and Turnitin checks those papers for plagiarism.
Quetext - We've helped more than 5 million students, teachers, and professionals identify potential plagiarism in their work.
iThenticate - Prevent Plagiarism in Published Works
Analyzz - The fast & visual way to understand your users.
Urkund - Detect and check for plagiarism with URKUND