PlagiarismCheck.org is described as 'helps educators and students all around the world to support academic honesty' and is an app in the Education & Reference category. There are more than 10 alternatives to PlagiarismCheck.org for a variety of platforms, including Online / Web-based, Windows, SaaS, Mac and Firefox. The best alternative is Grammarly, which is free. Other great apps like PlagiarismCheck.org are ProWritingAid (Freemium), Unicheck (Paid), Wordvice.ai (Freemium) and GrammarChecker.net (Free).
Whatever your level of writing, ProWritingAid will help you achieve new heights. Exceptional writing depends on much more than just correct grammar. You need an editing tool that also highlights style issues and compares your writing to the best writers in your genre.
Turnitin is an Internet-based plagiarism-detection service created by iParadigms, LLC. It prevents plagiarism by using a proprietary algorithm to compare submitted papers to papers within its own database and several other large academic databases.
Professional plagiarism checker that reviews over 14 trillion web pages, articles, books, and periodicals to help you detect possible plagiarism in your papers. It finds not only copy paste plagiarism, but paraphrasing, good and bad citations.
Professional online plagiarism checker for students, teachers, writers and editors. Advanced plagiarism detection system guarantees most accurate scanning results. The tool accepts all text formats and has additional services of professional rewriting, editing, and proofreading.