Four UC Berkeley graduate students designed a peer review application to use for their classes — thus, TurnItIn was born. Eventually, that prototype developed into one of the most recognizable names in plagiarism detection.
TurnItIn, which processed over 60 million academic papers in 2011, is accessible for a fee per educator. Free quotes are available on the website.
Students can use TurnItIn's WriteCheck service to maintain proper citations and to access various writing tools. Teachers can ask students to submit their papers through the service as a first measure.
Like TurnItIn, iThenticate is a service offered by Plagiarism.org, but is geared more toward professional writing and scholarly research. Publishers like Oxford University Press use iThenticate for its Cross Check software, which includes a database of more than 31 million articles and 67,664 books and journals.
Plagiarism Detect scans text at a rate of $0.50 per page. The system takes about 5-7 minutes per page, which makes for thorough examination.
According to the website, Plagiarism Detect has recently updated its system with a new advanced algorithm, combining multi-layered technology and SMART scanning (which supposedly scans papers like humans).
CheckForPlagiarism.net claims its licensing fees are, on average, between 35% and 70% lower than competing services. Its basic account, meant for high school students, costs $20 and allows users to scan five documents.
The service can scan multiple languages, and users can compare papers.
The EVE plagiarism detection system is one of the older services on this list, having performed almost 150 million scans since its creation in 2000. It runs users $29.99 for unlimited use and includes a 10-day money-back guarantee.
The website showcases several testimonials, including good reviews from Rolling Stone and Salon.
If we’ve learned one thing from the Jonah Lehrer plagiarism debacle it’s that copying or falsifying your work just isn’t worth it. Last month, The New Yorker writer resigned from his position at the magazine after admitting to fabricating quotes in his latest book, as well as borrowing from his own articles at other publications.
Plagiarism is as much a serious offense in the academic world as it is in journalism. Most high schools and universities take extreme disciplinary action if a student is caught cheating or plagiarizing, often leading to suspension or expulsion.
We’ve rounded up 10 online services that check text for plagiarism. Whether you’re an educator looking to verify your students’ work, or a student looking to make sure you haven’t overstepped “paraphrasing,” you’ll find something here that can help.