Turnitin is a well-known plagiarism detection company that analyzes student documents for potential plagiarism. Turnitin sells its services to universities and schools.

Features: Schools and universities can use Turnitin to check submitted documents against its database and the content of other websites with the aim of identifying “similarity” — potential plagiarism.

Students may be required to submit documents to Turnitin, or teachers may simply upload student work to Turnitin. Turnitin can find similiarity matches of submitted work within its large database.

In addition to plagiarism-detection, Turnitin offers a suite of grading and feedback tools. Feedback Studio is an embedded product that features a vibrant range of feedback and grading tools designed to help teachers deliver efficient and meaningful feedback to students. Gradescope is a separate program that facilitates the processes of creating, distributing, grading, and analyzing assessments for educators.

Tom’s Take: If you’re looking for a plagiarism- detection service thats full of features. Turnitin has been the leader in the field for over 25 years.

Price: Contact for institution pricing. According to Software Survey, the Gradescope Basic plan costs $1 per student.

PapersOwl offers a free online plagiarism checker designed for students, teachers, and others. With PapersOwl, you can easily verify the originality of submitted documents.

Features: PapersOwl is part of a suite that includes tools for generating various types of academic writing. It works with all common file formats and you check up to 10,000 characters at a time.

Simply paste an essay into the relevant text box or upload a text file, click on Check For Plagiarism, and you’ll get plagiarism results in seconds. You’ll see the problematic parts with plagiarism detected highlighted, with links to where similar content exists.

The PapersOwl reporting page contains a comprehensive report on your work, a percentage of its uniqueness, and a list of sources on which similarities were detected. PapersOwl also offers live chat support 24/7.

Tom’s Take: PapersOwl plagiarism checker is genuinely free, fast, and easy to use. It’s an excellent tool to check student essays for plagiarism.

That said, PapersOwl is primarily an essay-writing service and teachers may be turned off by that.

Price: Free

The SearchEngineReports Plagiarism Checker is a freemium service that enables users to verify work for potential plagiarism

Features: Plagiarism Checker is available in both free and paid plans, catering to different user needs with word limits.

The free plan is limited to 1000 words per search. Paid plans offer ranges from 5,000 to 30,000 per search and from 35,000 to 210,000 per total words.

Simply past in text and search. The text will be analyzed and you’ll be prrovided with a Similarity percentage and an Originality percentage. If there is similar text online you’ll be provided with a linketo it. The text you enter is promptly deleted from their database after the check is complete.

Tom’s Take: There are word limitations in the free version, which means that you will have to split larger documents into multiple uploads. There are also many, annoying ads on the site.

Price: Freemium. Paid versions range from $10 to $60 a month.