Turnitin – Similarity

Turnitin Similarity Plagiarism detector. Website screenshot.


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Turnitin Similarity is a robust plagiarism checker that helps teachers and students find potential plagiarism in written work. 

Who Can Use It:

  • For teachers, Similarity provides a "similarity score" showing what percentage of a paper potentially matches other sources. Teachers can review highlighted matches side-by-side with suspected sources to determine if plagiarism occurred or if sources were properly cited.
  • For students, Turnitin Similarity teaches the importance of doing original work and correctly citing sources.

How It Works?

It compares a student's paper against a huge database of over 47 billion web pages, 1.9 billion student papers, and 190 million published articles and journals.

Similarity does not definitively identify plagiarism itself. It simply flags similarities between a student's work and sources in its database. 

Some matched text may be properly quoted and cited. Ultimately, teachers must evaluate whether any unattributed copying took place.

Key Features:

  • Massive database of 47+ billion web pages, 1.9+ billion student papers, 190+ million publications.
  • Detailed Similarity Report with overall score, color-coded matching, side-by-side source comparison.
  • Flags Panel to detect text manipulation attempts.
  • Seamless LMS integration.
  • AI writing detection capability (e.g. ChatGPT).

Limitations and Considerations:

  • Turnitin is a paid service, so cost may be a barrier for some institutions/individuals.

Accuracy rating not available right now. Hang tight, it's coming soon.

The tools on this website are tested using a specific testing method for each category. This ensures they are evaluated fairly and in a way most people would use them.

AI detectors may seem similar at first glance, but they come with different features and are intended for various use cases. Choose a tool that best suits your specific needs for the most accurate results. 

Paid tools are usually more accurate and better for advanced users needing integration and bulk detection. 

Free tools can be hit-or-miss, with usage limits and varying accuracy. 

Therefore, we suggest you check out all of our AI detectors to find the best option for you. logo



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